Forem: Olga T.

Fast, Flexible, Feature-Rich DataGrid for Vue 3 Apps

Olga T. — Mon, 20 Apr 2026 12:11:29 +0000

If you've worked with data grids in Vue, you've probably hit the same wall at some point. The grid works fine for the demo, then you add real data, real editing requirements, and real users — and suddenly you're fighting the component instead of building your app.

Or you find a capable pre-made grid component, only to discover it's a JavaScript library wrapped in a Vue adapter, and customization means digging into JS code instead of working with the familiar Vue API.

That's why we built SVAR Vue DataGrid. The component is open-source, written entirely in Vue 3 and optimized for data-heavy scenarios, with fast loading and rendering, data editing, sorting, and filtering features.

Here’s a quick overview of what our Vue data grid component is capable of:

Vue-native architecture with a logical, developer-friendly API
High performance with large datasets (virtualization for rows and columns)
Accessibility with WAI-ARIA compliance and full keyboard navigation
Sorting, filtering, and in-cell editing (built-in and custom editors)
Flexible configuration of columns and rows
Light and dark themes easily customizable with CSS
Responsive mode adjustable for different screen sizes
Export to CSV and print support

You can find SVAR Vue DataGrid on GitHub ⭐

Getting started

Install SVAR Vue DataGrid via npm:

npm install @svar-ui/vue-grid

A basic table with data and columns is just a few lines:

<script setup>
import { Grid, Willow } from "@svar-ui/vue-grid";

const data = [
  { id: 1, city: "Amieshire", firstName: "Ernest", lastName: "Schuppe", email: "Leora13@yahoo.com" },
  { id: 2, city: "Gust", firstName: "Janis", lastName: "Vandervort", email: "Mose_Gerhold51@yahoo.com" },
];

const columns = [
  { id: "id", width: 50 },
  { id: "firstName", header: "First Name", width: 150 },
  { id: "lastName", header: "Last Name", width: 150 },
  { id: "city", header: "City", width: 100 },
  { id: "email", header: "Email" },
];
</script>

<template>
  <Willow>
    <Grid :data="data" :columns="columns" />
  </Willow>
</template>

Wrap the grid in <Willow> (or <WillowDark>) to apply a light or dark theme. That's all it takes to get a working, styled table on the page.

What it handles out of the box

The honest reason most teams end up with complex custom grid code is that they started with a library that covered 80% of their needs — and spent months filling in the other 20%. SVAR Vue DataGrid tries to ship that other 20% by default.

Sorting works across multiple columns with customizable sort logic.

Filtering can be added as inline header filters for quick access, and for more advanced scenarios the data grid integrates with SVAR Vue Filter. The filter component adds an advanced visual query builder with AND/OR logic, syntax-based filtering, and optional natural language search.

Data editing is supported by built-in cell editors (text, combo, datepicker, richselect), custom Vue components as editors, and external form integration via SVAR Vue Editor. There's also an undo/redo feature, which makes editing large datasets more convenient.

Layout-wise, you get column grouping, header spanning, pinned columns, row drag-and-drop reordering, and visibility control. Context menus, cell tooltips, and a toolbar round out the everyday interactions.

Features that grids typically lock behind a paywall: tree data, lazy loading, advanced filtering, context menus, rich select for in-cell editing are included here under MIT.

Working with large datasets

Virtual scrolling handles both rows and columns, so rendering stays efficient even with thousands of rows. Dynamic loading lets you fetch data on scroll rather than loading everything upfront — useful when you're working with a large backend dataset and don't want to wait for the full payload on page load.

Here is how you can load data dynamically in batches of 100 rows:

<script setup>
import { Grid } from "@svar-ui/vue-grid";
import { ref } from "vue";
import { getData } from "./common/data";

const { allData, columns } = getData();

const rowCount = ref(allData.length);
const data = ref([]);

function dataProvider(ev) {
  const { row } = ev;
  if (row) {
    data.value = allData.slice(row.start, row.end);
  }
}
</script>

<template>
  <Grid
    :data="data"
    :columns="columns"
    :dynamic="{ rowCount }"
    :@request-data="dataProvider"
  />
</template>

For easy backend integration, SVAR Vue DataGrid offers RestDataProvider, a special helper that handles CRUD operations and updates on the server side for these operations: add/update/delete row and cell update.

Why Vue-native matters

SVAR Vue DataGrid follows Vue's reactivity model. You can drop in your own Vue components as cell editors, use standard Vue patterns for event handling, and customize the grid any way you like.

Each data table is different and SVAR DataGrid gives you full control over the look-and-feel of the table, as well as its layout and features.

Try the data grid

If you are looking for a customizable, free, high-performance data grid for your Vue apps, just give it a try:

If you're building data-driven interfaces in Vue, SVAR Vue DataGrid can save you hours of work. Any feedback or feature requests are welcome on our forum.

SVAR Vue – New UI Component Library for Interactive Vue Apps

Olga T. — Tue, 14 Apr 2026 11:08:31 +0000

If you're building Vue projects and looking for a UI library to speed up your development, we have a new open-source Vue 3 component library waiting for you to try!

SVAR Vue library offers a set of pre-built, TypeScript-ready, well-designed components for most common use cases: form controls, navigation elements, modals, edit forms, and filtering UI.

What is SVAR Vue?

SVAR Vue is part of SVAR UI, a family of open-source component libraries built natively for modern JavaScript frameworks: Svelte, React and now Vue. "Natively" is the key word here: no wrappers or adapters — just a framework-first codebase.

Today we're releasing three SVAR packages for Vue 3:

SVAR Vue Core — a set of 30+ UI components for data-driven interfaces
SVAR Vue Editor — configurable edit forms for any structured data
SVAR Vue Filter — a complete filtering toolkit, from compact bars to query builders

All three are MIT-licensed and available on SVAR GitHub: Core, Editor, and Filter 🛠️

30+ Core Components

SVAR Vue Core library is the foundation. It gives you the everyday building blocks — buttons, checkboxes, radio inputs, select, datepicker, tabs, modals, notifications, sidebar panel, and more. All components are designed for data-intensive apps with virtualization and dynamic loading built in.

Themes (light and dark) are included out of the box and fully customizable via CSS variables. Menu, Toolbar, Comments, and Tasklist are available as separate add-ons, so your bundle only includes what you actually use.

This is how you install SVAR Vue Core library and Menu component via npm:

npm install @svar-ui/vue-core
npm install @svar-ui/vue-menu

The example code of adding a simple button:

<script setup>
import { Button, Willow } from "@svar-ui/vue-core";
</script>

<template>
  <Willow>
    <!-- Place your application code here -->
    <Button>Click Me</Button>
  </Willow>
</template>

Wrap your app in <Willow> (or <WillowDark>) to apply the theme globally. Find the full component list in the Vue Core docs.

Configurable Edit Form

SVAR Vue Editor component solves a specific but very common problem: you have structured data — a user profile, a product record, a table row, an info card — and you need an edit form for it. Building that from scratch every time is tedious.

The Editor gives you a configurable form component you can attach to any data structure and display as a popup, sidebar, or inline form.

It integrates natively with all SVAR Vue Core controls, supports one and two-column layouts, collapsible and accordion sections, custom validation, and both auto-save and on-action save modes.

To install SVAR Vue Editor, use:

npm install @svar-ui/vue-editor

Then you can add an edit form with preloaded data like this:

<script setup>
import { Editor, Willow } from "@svar-ui/vue-editor";

const items = [
  { comp: "text",     key: "name",  label: "Name" },
  { comp: "textarea", key: "descr", label: "Description" },
  { comp: "checkbox", key: "admin", label: "Is Admin" }
];

const values = {
  name: "John Doe",
  descr: "Lorem ipsum dolor sit amet",
  admin: true
};
</script>

<template>
  <Willow>
    <Editor :items="items" :values="values" />
  </Willow>
</template>

Each item in the items array defines a field type (comp), a data key, and a label. The values object preloads the form — useful when editing an existing record. Add :readonly="true" to render the same form in read-only mode.

Flexible Filter Library

SVAR Vue Filter is a library of four components, each aimed for a different level of filtering complexity:

FilterBar — compact inline search
FilterEditor — single-field rule editor
FilterBuilder — full visual query builder with nested AND/OR logic
FilterQuery — a YouTrack-style input with autocomplete, syntax highlighting, and an optional natural language mode

With the FilterBuilder, you can create an intuitive query builder interface with nested fields, boolean logic, and give your users a tool to configure complex filters with ease.

FilterQuery is also worth calling out: its natural language mode connects to an AI/NLP endpoint and converts plain-text queries like "tasks created last week assigned to me" into structured filter rules. Users can see these rules and edit them to find data they need.

The Filter library is installed like this:

npm install @svar-ui/vue-filter

Find the full API and examples in the Filter docs.

What Vue Components Are Coming Next

Core, Editor, and Filter are the foundation for the broader SVAR Vue component library. We plan to release next:

Vue DataGrid — fast, feature-rich, and accessible data grid
Vue Gantt Chart — interactive timeline and project management
Vue File Manager — file browsing and management UI

We're glad to finally be in the Vue ecosystem. Try the packages, check the docs, see the demos, and let us know what you think. The idea behind SVAR has always been simple: the best component library is the one that lets you ship using the code you already know.

Happy coding! 💻

SVAR Gantt 2.4: A Free, Modern Gantt Chart for React & Svelte

Olga T. — Tue, 06 Jan 2026 09:20:00 +0000

Gantt charts remain one of the most powerful tools for project management. They help to visualize project timelines, see task dependencies, and track progress.

If you need to integrate a Gantt chart in your web application, you’ll probably try to find if any ready-to-use solution exists. And if you do, you’ll quickly notice that many available libraries come with restrictive or expensive licenses, heavy wrappers around legacy code, limited flexibility or feature sets, or haven’t been updated for years.

With SVAR Gantt v2.4, we’re addressing several of these pain points at once, providing a modern, customizable Gantt chart library for React and Svelte.

This release introduces:

a permissive MIT license for the open-source core,
a new PRO Edition for advanced scheduling needs,
an MCP server that makes AI-assisted development actually useful in real projects (currently available for the React Gantt only).

SVAR Gantt 2.4: Open-Source Core under MIT

Starting with version 2.4, the open-source edition of SVAR Gantt is released under the MIT license. This means you can now use the Gantt component freely in personal projects, open-source applications or commercial products.

The MIT-licensed core already includes everything needed to build a fully functional and modern project planning UI. It provides a flexible task grid and timeline, support for hierarchical and summary tasks, task dependencies, customizable time scales, zooming, intuitive task edit form, and drag-and-drop editing directly on the chart.

The component is highly customizable, supports light and dark themes, localization, and keyboard navigation.

Installation remains straightforward. For React:

npm install @svar-ui/react-gantt

or, for Svelte:

npm install @svar-ui/svelte-gantt

We’re committed to actively maintaining and improving the open-source edition alongside the PRO version. Version 2.4 brings several practical improvements that focus on usability and developer experience:

Inline Dependency Removal - You can now remove task dependencies directly on the timeline. Click a dependency line, use the remove icon, and the relationship is gone — no need to open an edit form for simple changes.

Locale-Aware Scale Formatting - Timeline scale labels now respect the active locale automatically. Date formats adapt to regional conventions, including week start settings, without additional configuration.

These changes may look small, but they significantly reduce friction when working with real project data.

Introducing SVAR Gantt PRO Edition

SVAR Gantt v.2.4 also introduces a PRO Edition for teams that need more advanced scheduling logic. The PRO Edition adds advanced planning and calculation features commonly found in enterprise project management tools:

Non-linear time scales (work days calendar)
Auto-scheduling (Finish-to-Start dependencies)
Critical path
Baselines
Split tasks
Unscheduled tasks, and more

A 30-day free trial is available for teams who want to evaluate the PRO features: React Gantt PRO Trial & Svelte Gantt PRO Trial.

AI-Assisted Development for React Gantt

SVAR React Gantt now includes a Model Context Protocol (MCP) server. When connected to tools like Cursor, Claude Code, or Gemini, the MCP server gives your AI assistant direct access to current documentation, API references, and live demos.

This helps avoid outdated examples and incorrect suggestions when integrating or customizing the Gantt chart with AI code assistants.

SVAR Component Library v2.4 (React & Svelte)

Alongside the SVAR Gantt release, we’ve also updated our entire open-source SVAR Svelte and SVAR React component library.

This update focuses on performance, consistency, and UI/UX improvements across Core components and DataGrid, making the library a solid foundation for modern React and Svelte applications.

Core Components Highlights

disabled menu items (clearer UX without hiding actions)
new Fullscreen component
simplified field label handling
smarter popup positioning and alignment

DataGrid Enhancements

built-in customizable toolbar
expanded context menu (copy, paste, move, undo/redo)
variable row heights
customizable sorting logic

These updates make the DataGrid a solid choice for displaying tabular data in Svelte or React applications, while maintaining fast loading and rendering performance. At the same time, the SVAR Core library has become even more convenient and flexible for building modern web interfaces.

Wrapping Up

With SVAR Gantt v2.4, we're making modern Gantt chart integration straightforward for React and Svelte developers. The MIT-licensed core handles most project planning needs out of the box. The PRO Edition adds advanced scheduling for complex enterprise scenarios.

This release is part of our ongoing commitment to providing high-quality, actively maintained UI components for modern JavaScript frameworks. We're continuing to develop both editions based on real-world usage and community feedback.

Resources:

Documentation
Demos
GitHub Repository
Gantt PRO Free Trial: React | Svelte

Start building with SVAR components today!

🎃 Create a React Gantt Chart with SVAR Gantt (Halloween-Edition)

Olga T. — Fri, 31 Oct 2025 15:30:58 +0000

This Halloween I invite you to create something both functional and fun! In this tutorial, we’ll build a Halloween-themed task manager using SVAR React Gantt, a powerful, open-source project management component that can easily handle serious enterprise workloads… but today, we’re giving it a spooky twist.

The demo app will track the ultimate October project — organizing a Halloween party. You’ll plan tasks, set dates, and assign responsibilities, so you can later know who’s to blame if the candy runs out 😝

You’ll learn how to use SVAR React Gantt to:

Add a Gantt chart and fill it with data
Customize the task editor
Add a context menu and tooltips
Customize the default theme

And while it’s fun to play with pumpkins and ghosts, everything here translates directly to production-grade project management apps.

Useful links:

Online demo: see the Halloween-styled Gantt chart demo
Demo package: download the demo package
GitHub: find the source code of SVAR React Gantt

Including Sources

We start by installing SVAR Gantt Chart source files via npm:

npm install @svar-ui/react-gantt

Adding Gantt Chart on a Page

Import SVAR Gantt, the CSS styles, and the desired theme. The task manager comes with light and dark skins: Willow and WillowDark. To give the chart a spooky styling, in our tutorial we’ll use WillowDark theme as a basis.

Component.jsx

import { Gantt, WillowDark } from "@svar-ui/react-gantt";
import "@svar-ui/react-gantt/all.css";

Add the Gantt on page and define a theme for it:

Component.jsx

import { Gantt, WillowDark } from "@svar-ui/react-gantt";
import "@svar-ui/react-gantt/all.css";

function Component() {
  return (
    <WillowDark>
      <Gantt />
    </WillowDark>
  );
}
export default Component;

Filling Gantt Chart with Data

To bring our task manager to life, we need to provide the initial data for tasks and their links that form the project's structure at the initialization stage. The data includes four key elements: scales (timeline units), tasks (project activities with dates and progress), links (dependencies between tasks), and users (assignees for tasks).

data/index.js

const dayStyle = (date) => {
  const day = date.getDay() === 5 || date.getDay() === 6;
  return day ? 'sday' : '';
};

export const scales = [
  { unit: 'month', step: 1, format: 'MMMM yyy' },
  { unit: 'day', step: 1, format: 'd', css: dayStyle },
];

export const tasks = [
  {
    id: 1,
    start: new Date(2025, 9, 19),
    end: new Date(2025, 9, 25),
    text: 'Planning & Preparation',
    progress: 100,
    parent: 0,
    type: 'summary',
    open: true,
    details: '',
  },
  {
    id: 11,
    start: new Date(2025, 9, 19),
    end: new Date(2025, 9, 20),
    text: 'Set date',
    progress: 100,
    parent: 1,
    type: 'task',
    details:
      "Finalize the date and time for the Halloween party. Make sure it suits everyone's availability",
    to: 1,
  },
  // ... Other task data
];

export const links = [
  {
    id: 1,
    source: 11,
    target: 13,
    type: 'e2s',
  },
  // ... Other link data
];

export const users = [
  { id: 1, label: 'David' },
  { id: 2, label: 'Olivia' },
];

export function getData() {
  return { tasks, links, scales, users };
}

Since we keep our data on client side in a separate file, we need to import it and pass the corresponding data items to the Gantt component as props:

Component.jsx

import { useMemo, useState } from 'react';
import { Gantt, WillowDark } from "@svar-ui/react-gantt";
import "@svar-ui/react-gantt/all.css";
import { getData } from '../data';

function Component() {
  const [api, setApi] = useState();

  const data = useMemo(() => getData(), []);

  return (
    <WillowDark>
      <Gantt 
        init={setApi}
        tasks={data.tasks} 
        links={data.links}
        scales={data.scales}
      />
    </WillowDark>
  );
}

export default Component;

For more information about preparing and loading data, refer to the following documentation section: Loading data.

Customizing Task Tree

The Gantt widget includes a left-hand panel that displays a task tree, providing users with an overview of project details. By default, this tree features four columns: Task Name, Start Date, Duration, and Action. While this layout provides detailed insights, it can also take up extra screen space, which is especially valuable in busy project views.

To create a more compact interface, we can adjust the task tree structure using the columns property. If we exclude the default Duration column, we can free up space on the screen, allowing for a cleaner view that keeps the focus on the most critical information: task name, start date, and the + button to add a new task.

Component.jsx

import { useMemo, useState } from 'react';
import { Gantt, WillowDark } from "@svar-ui/react-gantt";
import "@svar-ui/react-gantt/all.css";
import { getData } from '../data';

function Component() {
  const [api, setApi] = useState();

  const data = useMemo(() => getData(), []);

  // Define the new structure of the Task Tree
  const columns = [
    { id: 'text', header: 'Task name', width: 210 },
    {
      id: 'start',
      header: 'Start date',
      width: 106,
      align: 'center',
    },
    { id: 'add-task', header: '', width: 40, align: 'center' },
  ];

  return (
    <WillowDark>
      <Gantt 
        init={setApi}
        tasks={data.tasks} 
        links={data.links}
        scales={data.scales}
        columns={columns}
      />
    </WillowDark>
  );
}

export default Component;

Adding Task Editor

The default editor of the Gantt chart provides a straightforward way for users to edit tasks and save changes directly on the chart. However, for our Halloween-themed project tracker, we'll enhance the standard editor by adding a custom field to assign responsibilities to each task.

Component.jsx

import { useMemo, useState } from 'react';
import { 
  Gantt, 
  WillowDark,
  Editor,
  defaultEditorItems // Import the default settings of the Gantt editor
} from "@svar-ui/react-gantt";
import "@svar-ui/react-gantt/all.css";
import { getData } from '../data';

function Component() {
  const [api, setApi] = useState();

  const data = useMemo(() => getData(), []);

  const columns = [
    { id: 'text', header: 'Task name', width: 210 },
    {
      id: 'start',
      header: 'Start date',
      width: 106,
      align: 'center',
    },
    { id: 'add-task', header: '', width: 40, align: 'center' },
  ];

  // Reshape the default editor settings to exclude unnecessary fields
  const editorItems = defaultEditorItems.filter(
    (op) => op.key !== 'duration' && op.key !== 'links'
  );

  // Add a custom field to assign the responsible user
  editorItems.splice(3, 0, {
    key: 'to',
    type: 'select',
    label: 'Goes to',
    options: data.users,
    config: { placeholder: 'Select the person' },
    comp: 'select',
  });

  return (
    <WillowDark>
      <Gantt 
        init={setApi}
        tasks={data.tasks} 
        links={data.links}
        scales={data.scales}
        columns={columns}
      />
      {api && <Editor api={api} autoSave={false} items={editorItems} />}
    </WillowDark>
  );
}

export default Component;

For more information about configuring the task editor, refer to the following documentation section: Configuring task editor.

Adding Context Menu

SVAR Gantt component uses ContextMenu component as a context menu. The menu can be packed with a wide range of options for managing tasks: editing, deleting, creating subtasks, and much more. While this full menu offers extensive functionality, our Halloween Gantt app requires a more compact, streamlined set of options to keep the interface clean and focused.

Let's customize the context menu and select only the essential options that suit our demo app's needs.

Component.jsx

import { useMemo, useState } from 'react';
import { 
  Gantt, 
  WillowDark,
  Editor,
  ContextMenu, // Import the built-in context menu
  defaultMenuOptions, // Import default menu options
  defaultEditorItems
} from "@svar-ui/react-gantt";
import "@svar-ui/react-gantt/all.css";
import { getData } from '../data';

function Component() {
  const [api, setApi] = useState();

  const data = useMemo(() => getData(), []);

  const columns = [
    { id: 'text', header: 'Task name', width: 210 },
    {
      id: 'start',
      header: 'Start date',
      width: 106,
      align: 'center',
    },
    { id: 'add-task', header: '', width: 40, align: 'center' },
  ];

  const editorItems = defaultEditorItems.filter(
    (op) => op.key !== 'duration' && op.key !== 'links'
  );
  editorItems.splice(3, 0, {
    key: 'to',
    type: 'select',
    label: 'Goes to',
    options: data.users,
    config: { placeholder: 'Select the person' },
    comp: 'select',
  });

  // Specify a set of available options within a custom context menu
  const ids = ['add-task', 'edit-task', 'delete-task', 'move-task'];

  // Reshape the default menu options considering the custom options
  const options = defaultMenuOptions.filter((op) => ids.indexOf(op.id) >= 0);

  return (
    <WillowDark>
      <ContextMenu api={api} options={options}>
        <Gantt 
          init={setApi}
          tasks={data.tasks} 
          links={data.links}
          scales={data.scales}
          columns={columns}
        />
      </ContextMenu>
      {api && <Editor api={api} autoSave={false} items={editorItems} />}
    </WillowDark>
  );
}

export default Component;

Please note that to activate the context menu features, you need to access Gantt API and pass it to the <ContextMenu api={api}> component. In this case we use the init prop to capture the API reference when Gantt initializes.

For more information on how to configure the context menu, refer to the following documentation section: Configuring the context menu.

Adding Tooltips

By default, the SVAR Gantt chart doesn't show tooltips. But we can easily activate this feature. All we need is to import the Tooltip component and wrap our Gantt component with it. Do not forget to provide the API reference as with the ContextMenu.

This simple setup will allow users to hover the pointer over a task or project and see a tooltip with the task's info.

Component.jsx

import { useMemo, useState } from 'react';
import { 
  Gantt, 
  WillowDark,
  Editor,
  ContextMenu,
  Tooltip, // Import the built-in tooltip
  defaultMenuOptions,
  defaultEditorItems
} from "@svar-ui/react-gantt";
import "@svar-ui/react-gantt/all.css";
import { getData } from '../data';

function Component() {
  const [api, setApi] = useState();

  const data = useMemo(() => getData(), []);

  const columns = [
    { id: 'text', header: 'Task name', width: 210 },
    {
      id: 'start',
      header: 'Start date',
      width: 106,
      align: 'center',
    },
    { id: 'add-task', header: '', width: 40, align: 'center' },
  ];

  const editorItems = defaultEditorItems.filter(
    (op) => op.key !== 'duration' && op.key !== 'links'
  );
  editorItems.splice(3, 0, {
    key: 'to',
    type: 'select',
    label: 'Goes to',
    options: data.users,
    config: { placeholder: 'Select the person' },
    comp: 'select',
  });

  const ids = ['add-task', 'edit-task', 'delete-task', 'move-task'];
  const options = defaultMenuOptions.filter((op) => ids.indexOf(op.id) >= 0);

  return (
    <WillowDark>
      <ContextMenu api={api} options={options}>
        <Tooltip api={api}>
          <Gantt 
            init={setApi}
            tasks={data.tasks} 
            links={data.links}
            scales={data.scales}
            columns={columns}
          />
        </Tooltip>
      </ContextMenu>
      {api && <Editor api={api} autoSave={false} items={editorItems} />}
    </WillowDark>
  );
}

export default Component;

For our Halloween-themed app, though, a simple title won't capture the full story. To make task details more accessible and engaging, we'll create a custom tooltip that displays the task description and assigned user.

First of all, we need to create a custom template for a tooltip. For convenience, we can put it in a separate file.

TooltipContent.jsx

import { users } from '../data'; // Import data for USERS to be displayed in a tooltip

export default function TooltipContent({ data }) {
  if (!data) return null;

  const { to, details } = data;

  return (
    <>
      {to || details ? (
        <div className="data">
          {details ? ( // Create a view for details (if exist)
            <div className="text">
              <span className="caption">🎃 Description: </span>
              <span className="details">{details}</span>
            </div>
          ) : null}
          {to ? ( // Create a view for assignee (if exists)
            <div className="text">
              <span className="caption">👻 Goes to: </span>
              {users.find((u) => u.id === to)?.label}
            </div>
          ) : null}
        </div>
      ) : null}
    </>
  );
}

TooltipContent.css

.data {
  background-color: #2b343b;
  padding: 8px 12px;
  width: 260px;
}

.text {
  width: 100%;
  height: fit-content;
  font-family: var(--wx-font-family);
  color: #ffffff;
  text-transform: capitalize;
  font-size: 14px;
  line-height: 20px;
}

.text + .text {
  margin-top: 8px;
}

.text:last-child {
  margin-bottom: 0;
}

.details {
  word-wrap: break-word;
}

.caption {
  font-weight: 600;
}

After the tooltip template is ready, we can import and apply it via the Tooltip content property.

Component.jsx

import TooltipContent from './TooltipContent';
import './TooltipContent.css';

// ...
  <Tooltip api={api} content={TooltipContent}>
    <Gantt 
      init={setApi}
      tasks={data.tasks} 
      links={data.links}
      scales={data.scales}
      columns={columns}
    />
  </Tooltip>
// ...

For more information about configuring tooltips, refer to the following documentation section: Adding tooltips.

Tuning Look and Feel

When initializing the project, we applied the WillowDark skin, which provides a clean and elegant design. However, to truly capture the essence of Halloween, we need to go beyond the basics and incorporate custom styles that resonate with the season's spirit. The key customizations include a dark background, purple task bars, orange summary tasks, and lime green dependency links for that perfect Halloween vibe.

To change the default theme settings, create a separate CSS file with custom CSS variables and apply it to the Halloween Gantt app.

This is how we replace colors in Component.css (excerpt):

.content {
  --wx-background: #161616;
  --wx-color-primary: #3c2369;
  --wx-color-danger: #eb691f;

  --wx-gantt-summary-color: #ee8c1d;
  --wx-gantt-summary-fill-color: #eb691f;

  --wx-gantt-task-color: #3c2369;
  --wx-gantt-task-fill-color: #582c8f;

  --wx-gantt-link-color: #9ee41f;
  /* Other custom variables */
}

.content .wx-bar.wx-milestone .wx-content {
  background: url('/assets/pumpkin.svg') no-repeat center / cover;
}

Apply the styles by wrapping your component in a container with the content class:

Demo.jsx

import { WillowDark } from '@svar-ui/react-gantt';
import Component from './components/Component';
import './Component.css';

function Demo() {
  return (
    <div className="demo">
      <WillowDark />
      <div className="content wx-willow-dark-theme">
        <Component />
      </div>
    </div>
  );
}

export default Demo;

You can find the complete list of rules in the related demo.

Summing Up

With these tweaks, our Halloween task manager is ready to bring order (and a little mischief) to the seasonal chaos.

We’ve customized tooltips, streamlined the context menu, added user assignments, and wrapped everything in a festive theme, all powered by SVAR React Gantt!

If you enjoy working with SVAR React Gantt, we’d really appreciate your ⭐ on GitHub. It helps us grow and keep improving the component.

SVAR React Gantt v2.3: Modern Project Timelines for React 19

Olga T. — Fri, 24 Oct 2025 15:43:26 +0000

If you've ever built scheduling or project management tools in React, you know how much time goes into getting timelines, tasks, and dependencies just right. With SVAR React Gantt 2.3, that entire experience just leveled up.

What Is SVAR React Gantt?

SVAR React Gantt is a complete timeline component for React applications. It handles task dependencies, drag-and-drop scheduling, zoom levels, customizable time scales - all the complex features you don't want to build from scratch. Think of it as the timeline interface behind tools like Asana or Monday.com, but as a React component you control.

Version 2.3 introduces the most requested features from the developer community. This release brings React 19 compatibility, official TypeScript support, and makes the package available on GitHub under GPLv3.

But more importantly, it adds greater flexibility to create customizable timelines adjusted to your project requirements.

You can install the latest version of SVAR React Gantt via npm:

npm install @svar-ui/react-gantt

The example below shows how to create a simple chart with one summary task containing a subtask, plus two separate tasks linked by a dependency:

import { Gantt } from "@svar-ui/react-gantt";

export default function App() {
  const tasks = [
    {
      id: 20,
      text: "New Task",
      start: new Date(2024, 5, 11),
      end: new Date(2024, 6, 12),
      duration: 1,
      progress: 2,
      type: "task",
      lazy: false,
    },
    {
      id: 47,
      text: "[1] Master project",
      start: new Date(2024, 5, 12),
      end: new Date(2024, 7, 12),
      duration: 8,
      progress: 0,
      parent: 0,
      type: "summary",
    },
    {
      id: 22,
      text: "Task",
      start: new Date(2024, 7, 11),
      end: new Date(2024, 8, 12),
      duration: 8,
      progress: 0,
      parent: 47,
      type: "task",
    },
    {
      id: 21,
      text: "New Task 2",
      start: new Date(2024, 7, 10),
      end: new Date(2024, 8, 12),
      duration: 3,
      progress: 0,
      type: "task",
      lazy: false,
    },
  ];

  const links = [{ id: 1, source: 20, target: 21, type: "e2e" }];

  const scales = [
    { unit: "month", step: 1, format: "MMMM yyy" },
    { unit: "day", step: 1, format: "d" },
  ];

  return <Gantt tasks={tasks} links={links} scales={scales} />;
}

Let's look closer at what's new and why this release makes SVAR React Gantt one of the most capable open-source Gantt components for modern React apps.

Full React 19 + TypeScript Support

The foundation of v2.3 is compatibility with React 19, ensuring seamless integration with the latest concurrent rendering and performance improvements.

It also ships with TypeScript definitions, so you get proper type safety, and fewer runtime surprises right in your IDE.

Time Precision Beyond Days

SVAR React Gantt v2.3 doesn't stop at day-level planning, it adds hour and minute precision through two new properties:

durationUnit – defines duration of a task in hours or days
lengthUnit – defines the minimal unit for task bars (the task length) in a chart and can be set from minute, hour, day, week to month, quarter or year.

Why it matters:
Now you can visualize even the shortest tasks with precise start and end times - perfect for production lines, healthcare shifts, or logistics dashboards.

👉 See more in docs – durationUnit & lengthUnit

Custom Time Scales

Beyond fixed weeks or months, with registerScaleUnit helper you can define your own scale units to reflect how your team actually works. You're no longer limited to predefined timeframes and can fully adapt the timeline to your application requirements.

With the new autoScale option, you can decide whether the chart adapts automatically to your data or stays fixed - giving you full control over your timeline.

👉 See more in docs - Configuring time scale

A Smarter, More Interactive Task Grid

Managing a large number of tasks just got simpler. The upgraded task grid introduces:

Multi-column sorting
In-cell editing (text, date, dropdown, or custom editors)
Custom HTML rendering in cells
Header menu to show or hide columns on the fly

No need to open task edit form for every change - edit tasks inline and keep your workflow fast and fluid.

👉 See more in docs - How to configure task grid

Configurable Task Editor

The task editor has been refactored into a standalone, fully customizable component based on SVAR React Editor. This gives you more freedom to:

Choose between sidebar or modal layouts
Add field-level validation
Set up auto-save or manual-save modes

This separation makes it easier to customize the form or reuse it across different project views.

👉 See more in docs - How to configure task editor

Keyboard Shortcuts

End users can now navigate Gantt charts faster with hotkeys for common actions: copy, cut, paste, delete, open editor, and navigate through grid rows. This small change adds huge productivity gains during long planning sessions.

👉 See more in docs - Hotkeys support

UX Enhancements

SVAR React Gantt v2.3 introduces several polish updates:

Fullscreen mode for clean presentations
Resizable grid and chart areas with new expand/collapse control
Built-in localization support
Customizable tooltips on hover for task details

All these updates make the component feel smoother, more responsive, and ready for enterprise use.

Summing Up

SVAR React Gantt v2.3 combines modern React architecture with fine-grained scheduling and deep customization in one open-source package. Whether you're building a project planner, workforce scheduler, or resource management dashboard, this release gives you the tools to build faster and smarter.

Explore SVAR React Gantt v2.3:

🛠️ GitHub Repository
📚 Documentation
✨ Live Demos

💬 Have you used SVAR React Gantt or another timeline library in your React projects? Which features matter most to you in a Gantt component? Share your thoughts in the comments!

SVAR React DataGrid v2.3 — A Free Alternative for Complex React Tables

Olga T. — Thu, 16 Oct 2025 16:42:02 +0000

Working with tabular data in React might seem easy but can turn out to be a challenging task. You start with a simple feature list, but soon your app needs sorting, filtering, in-cell editing, accessibility compliance, not mentioning responsive layout and data export.

Of course, there are tons of data table libraries for React that give you most of these features. But they’re either heavy and expensive, or kind of limited in feature set.

That’s why we built SVAR React DataGrid, an open-source React datagrid component which is available under MIT license. With the recent v2.3 release, it now covers a feature set that makes it a strong competitor to the established players (AG Grid, MUI DataGrid, TanStack Table).

Key Features

Here’s what’s already built into SVAR React DataGrid (v2.3 and earlier):

React 19 and Typescript support: the essentials of modern React components
Accessibility: compatibility with WAI-ARIA standards
Performance: virtual scrolling for rows and columns, dynamic data loading - check the demo with big data
Data management: multi-column sorting, selection, editing (in-cell and via form)
Presentation: cell templates, cell tooltips, tree data, pagination.
Layout: pinned columns, colspans/rowspans, collapsible column groups, auto-sizing.
Backend/export: RestDataProvider integration, print API, CSV export.
Customization: light/dark themes, CSS variables, localization.

In other words: this is a powerful datagrid component with a solid feature set that can significantly save your development time. And what’s even better, it’s free under the MIT license - see the GitHub repository 🛠️

What’s new in v2.3

Here are the highlights of the new features added in version 2.3:

Accessibility (WAI-ARIA)
Screen reader support and upgraded keyboard navigation make SVAR React DataGrid usable with assistive tech, not just mouse clicks.

Filtering (Basic + Advanced)
Version 2.3 introduced column header filters (text, select, custom), as well as the ability to integrate SVAR React Filter for advanced filtering. You can use this query builder component to combine conditions with AND/OR logic and build complex queries with nested filter groups.

External Edit Form & Undo/Redo
Integration with SVAR React Editor allows you to edit rows data in a popup or sidebar edit form. You can undo/redo any data change with Ctrl+Z / Ctrl+Y since version 2.3, so no more fear of accidental edits.

Responsive Mode
SVAR React DataGrid v.2.3 gives you the flexibility to configure which columns appear and how the datagrid will look depending on screen size, so you can make sure your tables look good on any device.

Print Support
You can now print the entire datagrid, even off-screen rows/columns, with full control over paper size and orientation.

UX Improvements
Other notable new features include:

Drag-and-drop row reordering.
Custom HTML in headers/footers.
Smarter collapsible columns (with placeholders instead of disappearing).

👉 Try live demos of all features

Get Started

Starting with v2.3, the SVAR DataGrid package is available under the @svar-ui namespace:

npm install @svar-ui/react-grid

Here is the code example that adds a simple data table on a page with SVAR React DataGrid:

import { Grid } from "@svar-ui/react-grid";
import "@svar-ui/react-grid/all.css";

const data = [
  {
    id: 1,
    city: "Amieshire",
    email: "Leora13@yahoo.com",
    firstName: "Ernest",
    lastName: "Schuppe",
    companyName: "Lebsack - Nicolas",
  },
  {
    id: 2,
    city: "Gust",
    email: "Mose_Gerhold51@yahoo.com",
    firstName: "Janis",
    lastName: "Vandervort",
    companyName: "Glover - Hermiston",
  },
];

const columns = [
  { id: "id", width: 50 },
  { id: "city", width: 100, header: "City", footer: "City" },
  { id: "firstName", header: "First Name", footer: "First Name", width: 150 },
  { id: "lastName", header: "Last Name", footer: "Last Name", width: 150 },
  { id: "email", header: "Email", footer: "Email" },
  { id: "companyName", header: "Company", footer: "Company" },
];

export default function App() {
  return <Grid data={data} columns={columns} />;
}

Explore more

Why Try SVAR DataGrid?

SVAR React DataGrid is designed to hit the sweet spot:

Modern React-first API
Super fast with virtual scrolling
Feature-complete (editing, filtering, export, responsive, accessibility)
MIT license

If you're building a project dashboard, admin panel, or any React app that works with structured data, SVAR React DataGrid v2.3 is worth a try. Explore the demos, experiment with the new features, and see how it can help you build advanced data tables faster.

🔍 SVAR React Filter: Open-Source Query Builder for React

Olga T. — Tue, 07 Oct 2025 16:28:50 +0000

If you're building a React app that works with large datasets, giving users an intuitive way to filter and find what they need is essential. Think of admin dashboards, CRMs, project management tools, or analytics panels where users have to analyze and interact with large volumes of data.

To simplify this task, we've created SVAR React Filter, a query builder for React that provides everything you need out of the box: a clear and intuitive filtering UI, AND/OR logic, nested filter groups, support for multiple data types, and a wide range of conditions.

What's Included

SVAR React Filter library includes three components:

FilterBuilder - an advanced logic builder for complex queries
FilterEditor - a standalone filter for a single field
FilterBar - a simple toolbar with inputs empowered by query-building logic

SVAR React Filter can be easily integrated into React projects, as it:

Works with React 18 and 19
Supports TypeScript
Produces and consumes JSON format
Is MIT-licensed - check out the repository on GitHub 🛠️

To try SVAR React Filter in action, see this demo with SVAR DataGrid.

Why SVAR React Filter?

SVAR React Filter comes with ready-to-use advanced logic of a query builder combined with a clean, modern user interface.

Filtering Logic

Build complex queries with multiple fields, grouped filters, and nested conditions
Combine rules using AND/OR logic for precise data filtering
Filter text, numbers, and dates with type-specific operations (equals, contains, greater than, begins with, etc.)

User Experience

Display filters vertically or horizontally to fit your layout
Load filter options dynamically as users create new filters
Localize text labels and date formats based on user locale
Choose between light and dark themes

Developer Experience

Get structured JSON output ready for backend processing
Transform filter queries to SQL using the included Go backend integration
Configure each filter type with a straightforward API

Get Started

You can install SVAR React Filter via npm:

npm install @svar-ui/react-filter
Here's a quick example to get you started with FilterBuilder using the light Willow theme:

import { FilterBuilder, Willow } from "@svar-ui/react-filter";
import "@svar-ui/react-filter/all.css";

const fields = [
{ id: "first_name", label: "First Name", type: "text" },
{ id: "age", label: "Age", type: "number" },
{ id: "start", label: "Start Date", type: "date", format: "%y-%m-%d" }
];

const options = {
first_name: ["Alex", "Adam", "John", "Jane"],
age: [17, 21, 35, 42],
start: [new Date(2025, 4, 7), new Date(2025, 4, 10)]
};

export default function App() {
return (
<Willow>
<FilterBuilder fields={fields} options={options} />
</Willow>
);
}

For detailed instructions, API references, and more examples see:

Wrapping Up

With SVAR React Filter, you can add advanced filtering to your React applications without building it from scratch. Whether you need a compact filter bar for a table or a full-featured query builder for complex dashboards, it provides the right level of flexibility.

Try it in your React project and see how much easier filtering can be. If you like it, a star on GitHub will be much appreciated! 🌟

🚀 Build Edit Forms in React Faster with SVAR Editor

Olga T. — Mon, 29 Sep 2025 17:17:14 +0000

Building edit forms for structured data is repetitive work. User profiles, admin panels, product details - they all need similar functionality: validation, layouts, save logic, and consistent UI. While libraries like React Hook Form handle form state beautifully, you still need to build all the UI components yourself.

In addition to its SVAR React Core library, SVAR released an open-source form editor component which simplifies the creation of editing forms for any UI element with structured data – SVAR React Editor.

This is an example of how the form built with SVAR Editor may look like, with various form inputs and comments section:

Whether you're handling user profiles, info cards, or any dataset with predefined fields, you can use SVAR Editor as a constructor to integrate all the form controls from the Core library. The component is free under MIT license, supports TypeScript and works seamlessly with React 18 and 19.

Key Features

With SVAR React Editor, you can build custom edit forms faster as it has pre-built blocks and components to handle form creation:

All SVAR React Core components can be used as form inputs (buttons, text input, selects, datepicker, combobox, etc)
Choose how the form appears on a page: inline, popup, or sidebar
Built-in validation, with support for custom validation rules
Collapsible sections for large forms
Two-column layout for a compact UI
Flexible saving options: real-time updates or manual saving via a button click
Menu and toolbar integration for better UX
Comments and to-do list sections can be added
Light and dark themes

Get Started

Here are the useful links to learn more about SVAR React Editor and see it in action:

To get started with the Editor component, you can install it via npm (note that you also need to install SVAR Core library to get access to all the form controls):

npm install @svar-ui/react-core
npm install @svar-ui/react-editor

Here is how you create a simple editor form with three input fields:

import { Willow } from '@svar-ui/react-core';
import { Editor } from '@svar-ui/react-editor';

const items = [
  { comp: "text", key: "name", label: "Name" },
  { comp: "text", key: "descr", label: "Description" },
  { comp: "text", key: "role", label: "Role" }
];

const values = {
  name: "John Doe",
  descr: "Lorem ipsum dolor sit amet",
  role: "admin"
};

export default function App() {
  return (
    <Willow>
      <Editor items={items} values={values} />
    </Willow>
  );
}

Building edit forms is really easy with SVAR Editor. The component comes with comprehensive documentation covering all configuration options, detailed API references, and practical examples for common use cases.

Summing Up

SVAR Editor is best when you need a complete UI solution quickly. Unlike headless form libraries like React Hook Form or Formik, it comes with pre-built form controls, layouts, and themes, making it perfect for quickly implementing admin panels, profile editors, and data entry interfaces.

The component also works well with the SVAR React ecosystem, including DataGrid and Gantt components.

Give it a try and share your feedback on GitHub!

SVAR Svelte Components Now with TypeScript Support

Olga T. — Wed, 24 Sep 2025 09:20:00 +0000

SVAR Svelte component collection reached a significant milestone - it now supports TypeScript. From the basic Core Library to more complex widgets like DataGrid and Gantt chart, version 2.3 delivers the official type definitions developers have been requesting.

This update transforms SVAR Svelte components into a more reliable, consistent, and production-ready solution for Svelte developers who work with TypeScript.

What’s Inside SVAR Svelte

If you’re not familiar with SVAR Svelte, here is the list of available components that now support TypeScript:

Core — a library of essential components (menu, tabs, toolbar, popups, etc) and form controls
DataGrid — Advanced data grid with filtering, sorting, paging, frozen columns, and more
Gantt — Interactive Gantt chart with drag-and-drop functionality
File Manager — Complete file explorer UI component
Filter — Powerful query builder for complex filtering scenarios
Editor — Customizable edit forms for structured data

Why TypeScript Support Matters

TypeScript support brings immediate benefits to your development workflow:

Enhanced Developer Experience — Enjoy full autocomplete, inline documentation, and intelligent code hints directly in your IDE.
Compile-Time Safety — Catch potential errors during development rather than discovering them in production.
API Consistency — SVAR Svelte documentation now perfectly aligns with the actual TypeScript definitions, eliminating any confusion about component interfaces.

Getting Started with Version 2.3

You can find the updates on SVAR’s GitHub or install version 2.3 via npm:

npm install @svar-ui/svelte-core
npm install @svar-ui/svelte-grid
npm install @svar-ui/svelte-gantt
npm install @svar-ui/svelte-filemanager
npm install @svar-ui/svelte-filter
npm install @svar-ui/svelte-editor

Important: starting from version 2.3 all SVAR Svelte components are moving to @svar-ui/ namespace. This creates a consistent and unified naming structure for all SVAR components:

Earlier: wx-svelte-core, wx-react-core
Now: @svar-ui/svelte-core, @svar-ui/react-core

For backward compatibility SVAR will continue publishing the packages under both wx-svelte-* and @svar-ui/ namespaces until version 3.0.

This release is a major step forward in SVAR's commitment to providing developer-friendly tools. We hope that now you’ll love working with SVAR Svelte components even more!

🔥 New React Component Library from SVAR

Olga T. — Mon, 22 Sep 2025 16:13:06 +0000

If you're building data-driven, scalable apps with React, using pre-built, reusable UI components can significantly speed up development. We created SVAR UI components to simplify the process and provide solid, ready-to-use solutions for common UI needs.

In addition to advanced components like the SVAR React Gantt and DataGrid, we’re excited to release an open-source, React 18/19-ready UI library of smaller, essential elements like buttons, tabs, calendar, popups, and multiple form controls - called SVAR React Core.

What's Included

Similar to MUI or Chakra UI libraries, SVAR React Core provides a collection of ready-to-use, pre-styled React components for the most common UI needs:

Form controls: buttons, checkboxes, inputs, sliders, toggles
Calendar: date picker, range picker, or simple month calendar
Dropdowns & selects: from basic selects to multi-combo
Navigation: tabs, segmented buttons, pagination
Layout & utilities: sidebar, menus, toolbars, notifications

Why Try SVAR React Core?

Although there are many popular React components libraries out there, we invite you to try SVAR React Core, because it might be the missing piece in your React toolkit 😊

The key advantages include:

Clear, intuitive API
Small bundle size
Easily styled with CSS
Optimized performance for large datasets
React 18/19 support
Dark and light themes
Detailed documentation and responsive technical team

Also, SVAR React Core components are complementary to SVAR React DataGrid and Gantt. You can use them together in the same project with consistent design and styling.

Get Started

These are the useful links to get started 🔗

GitHub repository ⭐
Documentation
Demos: Core, Menu, Toolbar, Comments, Tasklist

You can install the Core package via npm:

npm install @svar-ui/react-core
Example of use:

import { Button } from "@svar-ui/react-core";

export default function App() {
  return <Button>Click Me</Button>;
}

Note that some components should be installed as separate packages:

npm install @svar-ui/react-menu npm install @svar-ui/react-toolbar npm install @svar-ui/react-comments npm install @svar-ui/react-tasklist

What's Next for SVAR Core?

We’re planning to further improve SVAR React Core library with this features:

TypeScript support
Accessibility improvements
File uploader component

Wrapping Up

We built SVAR React Core to speed up UI development in our projects, and we’re excited to share it with the React community. Give it a try and let us know what you think!

How to Become a Better React Developer: The Basics and Beyond

Olga T. — Thu, 07 Aug 2025 15:42:40 +0000

Working with React for years and want to move forward and improve your skills? This article offers several proven strategies to deepen your expertise and advance your career.

Master Core Programming Fundamentals

To grow as a React developer, stop skipping the fundamentals. Spend time learning core programming concepts — not just in JavaScript, but in a language-agnostic way. Focus on basic data structures (arrays, trees, maps), algorithms (sorting, searching), and essential CS concepts like logic, complexity, and modeling.

Understanding these fundamentals will help you make better decisions when choosing between different React patterns and optimize your code more effectively. When you understand how data structures work under the hood, you’ll write more efficient components and avoid common performance pitfalls.

Strengthen Your Frontend Foundation

Strengthen your frontend skills by studying deeper the parts you take for granted: HTML, CSS, Web APIs, browser internals, and how the DOM actually works. Many React developers rush into frameworks without understanding what’s happening beneath the surface.

Read the React Docs

Although it’s obvious, one of the fastest ways to level up as a React developer is just read the official React documentation. Not skim it, but actually sit down and read through it. Yeah, it might feel boring at first, but they’re packed with insights that’ll make everything else click.

The docs are written by the React team and teach you not only how to use the framework, but why it works the way it does. You’ll get clear mental models around state, rendering, component trees, and effects — and avoid common mistakes that lead to bugs and unmaintainable code.

Read Good Code and Contribute

One of the fastest ways to grow as a developer is by reading the source code of the libraries you use every day. Dig into projects like Radix UI, Chakra UI, or TanStack Query. Pay attention to how they organize code, handle state, and abstract complexity. Even if you don’t fully understand everything at first, you’ll start building mental models that improve how you write your own code.

Go a step further and contribute to open source — fix a bug, open an issue, or suggest an improvement. You’ll sharpen your skills, build confidence, and start being part of the community, not just a consumer of tools.

Build Something from Ground Up

The best way to grow as a React developer is to build a full application from scratch — UI to database. Pick a project that solves real-life problems or that aligns with the kind of work you want to do in the future.

As you figure out how to build it, you’ll naturally gain the skills needed for that job. Whether it’s a SaaS tool, admin dashboard, or multiplayer app, working through the full stack will deepen your understanding of how the frontend connects to the backend, and how to make it all maintainable.

Think in Terms of Architecture, Not Just Code

As your apps and responsibilities grow, clean code isn’t enough — you need a scalable structure. One of the most impactful shifts you can make is moving from separating files by type (like components/, hooks/, pages/) to organizing by features or domains. This keeps related logic together and makes your project easier to navigate and evolve.

Study architecture patterns like feature-based folder structures, domain-driven design, and component composition. Learn how to separate client and server state, when to colocate logic, and when to abstract it. These decisions compound over time — and strong architecture makes refactoring, onboarding, and collaboration dramatically easier.

Learn Design Patterns

Explore Refactoring Guru’s design patterns or patterns.dev to learn about design patterns and when to use them. Focus on patterns that are particularly relevant to React development, such as Observer, Strategy, and Factory patterns.

Learn Decision-Making and Critical Thinking

As you grow as a developer, it’s important to start forming your own opinions about code and tools you use. What makes code readable, scalable, or maintainable? What patterns feel right or wrong, and why? Thinking critically about these things deepens your understanding and helps you build a personal sense of technical judgment.

Overall, it helps you make better decisions, explain your reasoning, and influence your team’s direction. As you move into more senior roles, it’s less about just writing code and more about making decisions and shaping how that code is written.

Learn Something Outside Your Stack

Pick up a different language like Go, Kotlin, or even Clojure — something far enough from JavaScript that it forces you to think differently. It’ll rewire your brain, help you appreciate architecture and design patterns more deeply, and make your regular code cleaner and more intentional.

You can also zoom out and explore the layers React sits on top of: backend routing, Linux servers, HTTP protocols, or system design. The more you understand what’s happening beneath the surface, the better your decisions will be up top. If backend isn’t your thing, try leveling up in UX design — ultimately, great developers know how to move across abstraction layers, not just within a framework.

Wrapping Up

Improving as a React developer isn’t about jumping on every new tool — it’s about learning foundations, building depth, learning how things work under the hood, and becoming someone others trust to make good technical decisions. Pick one area from this list, go deep, and keep building.

Cover photo by Lindsay Henwood on Unsplash

🚀 9 Libraries to Boost Your Productivity as a React Developer

Olga T. — Fri, 01 Aug 2025 08:37:00 +0000

Introduction

The React ecosystem is packed with thousands of libraries, but only a handful actually make a meaningful difference in your day-to-day development. Below you'll find the list of libraries, mentioned by the React community, that consistently boost productivity and solve common development challenges.

This article covers the essential tools that can streamline your workflow. For the complete version with developer feedback for each library, check out the full article on SVAR's blog.

TanStack Query

TanStack Query (formerly React Query) manages asynchronous server state management and caching with automatic background updates. It simplifies fetching, caching, synchronizing and updating server state in your React app. You can use it out-of-the-box and customize while your app scales.

When to use: Use TanStack Query in any app that needs to fetch and manage server data. It handles fetching, caching, and syncing server state, often replacing the need for global state management.

Zustand

Zustand is a lightweight state management library for React that uses hooks to manage state with minimal boilerplate. Unlike Redux, it doesn’t require reducers, actions, or wrapping your app in providers. You define your store using a simple function and consume it directly in components via custom hooks. It’s un-opinionated, works with both JavaScript and TypeScript, and supports advanced use cases like selective subscriptions and transient updates.

When to use: Small to medium apps, when you want simple global state without Redux complexity, or when building framework-agnostic code.

Jotai

Jotai is a minimalistic state management library for React that uses atoms — small units of state — to build predictable and scalable global state. Each atom can be used independently or combined with others, and React automatically optimizes re-renders based on which atoms a component depends on.

Unlike React context, Jotai avoids unnecessary re-renders without requiring memoization. It feels similar to signals but keeps a declarative model, making it easy to reason about. Jotai is used in production by teams at Meta, Adobe, and TikTok.

When to use: When you prefer bottom-up state composition, need fine-grained reactivity, or want to avoid prop drilling without global state.

Axios

Axios is a popular promise-based HTTP client used in React applications to handle API requests. It works in both the browser and Node.js, offering a consistent API across environments. Axios simplifies tasks like sending GET/POST requests, handling responses, and managing errors. It also supports XSRF protection and convenient data serialization, making it a reliable choice for handling API communication.

When to use: When you need interceptors for auth tokens, request/response transformation, or centralized error handling. Otherwise, native fetch is sufficient.

React Hook Form

React Hook Form (RHF) helps you create performant forms with minimal re-renders and built-in validation. It works with standard HTML form elements, enabling developers to build forms quickly without unnecessary boilerplate. Unlike controlled components, RHF uses uncontrolled components by default, which minimizes re-renders and validation overhead, resulting in faster form rendering.

When to use: Ideal for complex forms with validation needs. RHF improves performance over controlled components by reducing unnecessary renders.

Zod

Zod is a TypeScript-first schema declaration and validation library that brings runtime safety to your application. It lets you define the shape of your data using a concise, fluent API and then validate at runtime, catching invalid API responses, form inputs, or internal state before they cause bugs. Unlike JSON Schema or Yup, Zod works seamlessly with TypeScript without needing extra code for type inference.

When to use: Use Zod in TypeScript projects when you need both compile-time types and runtime validation: for form inputs, API responses, or strict component props. It helps eliminate type mismatches and reduces defensive code.

React Testing Library

React Testing Library (RTL) provides lightweight utilities built on top of react-dom and react-dom/test-utils, designed to promote testing through user interactions rather than component internals. Instead of working with component instances, RTL encourages querying and asserting against actual DOM nodes, just like real users would. This approach improves test reliability and pushes developers toward writing more accessible, behavior-focused components.

When to use: Unit testing React components, when you prefer testing behavior over implementation details.

Vitest

Vitest is a fast unit testing framework built on top of Vite, with native ESM support and a Jest-compatible API. It supports TypeScript, JSX, mocking, snapshots, and code coverage out of the box, and integrates directly with your Vite config for a streamlined setup. Developers appreciate its instant watch mode and dev experience that feels more like HMR than traditional test runners.

When to use: Modern TypeScript/Vite projects where speed and ESM support matter. Great replacement for Jest in new apps.

Playwright

Playwright is an end-to-end testing library for reliable, cross-browser automation. It supports Chromium, Firefox, and WebKit, and allows mocking network responses and testing real user workflows. It offers auto-waiting, resilient web-first assertions, and built-in tracing to eliminate flaky tests.

When to use: Integration testing, when you need to test actual user workflows, or want reliable cross-browser testing.

Bonus: UI Components

A solid component library can save weeks of work.These options can speed up your UI development and help you get started quickly:

Shadcn/ui - Use Shadcn/ui when you want flexible, accessible UI components with full control over styling and logic.
MUI (Material UI) - Use it if you need a mature, well-documented component library with a consistent design system and broad community support.
Mantine - Use it when you want a modern React components library with native dark theme support, built-in hooks, and comprehensive form management capabilities.
SVAR React Gantt & DataGrid - Use these components when you need a project management application, need a visual timeline, or feature-rich data table that effectively handles large datasets.

Final Thoughts

I hope you found some useful tools that will help you develop and test your React apps smarter. Whether you’re building small side projects or enterprise-scale applications, the right libraries can save time, reduce bugs, and improve your developer experience.

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