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Snappy Tools

Free browser-side tools for developers & designers — CSS minifier, JSON formatter, color picker & 18 more. No signup. No uploads. snappytools.app

Location London, UK Joined Joined on  Personal website https://snappytools.app
CSV to JSON: How to Convert Tabular Data in Pure JavaScript (No Libraries)
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CSV to JSON: How to Convert Tabular Data in Pure JavaScript (No Libraries)

#webdev #javascript #beginners #tools
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4 min read
JWT Tokens Decoded: What's Actually Inside That eyJ… String
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JWT Tokens Decoded: What's Actually Inside That eyJ… String

#webdev #javascript #security #tools
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4 min read
localStorage vs sessionStorage vs Cookies: When to Use Each
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localStorage vs sessionStorage vs Cookies: When to Use Each

#javascript #webdev #frontend #beginners
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3 min read
YAML for Developers: Syntax, Gotchas, and When to Use It
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YAML for Developers: Syntax, Gotchas, and When to Use It

#webdev #programming #devops #beginners
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3 min read
Unix Timestamps: A Complete Developer Reference
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Unix Timestamps: A Complete Developer Reference

#webdev #javascript #programming #beginners
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3 min read
CSS Color Formats: Hex, RGB, HSL, and When to Use Each
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CSS Color Formats: Hex, RGB, HSL, and When to Use Each

#css #webdev #frontend #beginners
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4 min read
Base64 Encoding: What It Is, How It Works, and When to Use It
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Base64 Encoding: What It Is, How It Works, and When to Use It

#webdev #javascript #beginners #programming
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3 min read
JavaScript Array Methods: map, filter, reduce, and Everything Else You Need
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JavaScript Array Methods: map, filter, reduce, and Everything Else You Need

#javascript #webdev #beginners #programming
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4 min read
The CSS Box Model: Margin, Padding, Border, and box-sizing Explained
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The CSS Box Model: Margin, Padding, Border, and box-sizing Explained

#css #webdev #beginners #frontend
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3 min read
Markdown Tips for Developers: Beyond the Basics
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Markdown Tips for Developers: Beyond the Basics

#webdev #writing #productivity #beginners
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3 min read
Password Entropy: The Math Behind Why 'Password123' Is Weak
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Password Entropy: The Math Behind Why 'Password123' Is Weak

#security #webdev #beginners #programming
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4 min read
JSON Best Practices: Formatting, Naming Conventions, and Common Mistakes
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JSON Best Practices: Formatting, Naming Conventions, and Common Mistakes

#webdev #api #javascript #beginners
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3 min read
How to Parse URLs in JavaScript: The URL API vs Manual Parsing
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How to Parse URLs in JavaScript: The URL API vs Manual Parsing

#javascript #webdev #beginners #programming
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3 min read
How Text Diff Works: The Myers Algorithm Explained
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How Text Diff Works: The Myers Algorithm Explained

#programming #algorithms #webdev #beginners
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3 min read
How to Minify CSS: Tools, Techniques, and What Gets Removed
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How to Minify CSS: Tools, Techniques, and What Gets Removed

#css #webdev #performance #frontend
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3 min read
UUID Best Practices: v4, v7, and When You Should Use Each
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UUID Best Practices: v4, v7, and When You Should Use Each

#webdev #backend #database #beginners
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3 min read
How to Implement Dark Mode: A Complete CSS and JavaScript Guide
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How to Implement Dark Mode: A Complete CSS and JavaScript Guide

#css #javascript #webdev #frontend
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3 min read
Keyword Density in SEO: What It Actually Means (and When It Matters)
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Keyword Density in SEO: What It Actually Means (and When It Matters)

#webdev #seo #writing #beginners
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3 min read
QR Codes for Developers: How They Work and How to Generate Them
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QR Codes for Developers: How They Work and How to Generate Them

#webdev #javascript #beginners #productivity
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4 min read
ASCII, Unicode, and UTF-8: What Every Developer Should Know
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ASCII, Unicode, and UTF-8: What Every Developer Should Know

#webdev #beginners #programming #javascript
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4 min read
JSON Schema: Validate Your API Data Before It Reaches Your Application
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JSON Schema: Validate Your API Data Before It Reaches Your Application

#webdev #javascript #api #beginners
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3 min read
Flesch-Kincaid and Gunning Fog: How to Actually Use Readability Scores
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Flesch-Kincaid and Gunning Fog: How to Actually Use Readability Scores

#webdev #writing #beginners #productivity
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4 min read
CSS Custom Properties: The Modern Way to Manage Design Tokens
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CSS Custom Properties: The Modern Way to Manage Design Tokens

#css #webdev #frontend #javascript
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3 min read
CSS Gradients: A Complete Guide to Linear, Radial, and Conic Gradients
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CSS Gradients: A Complete Guide to Linear, Radial, and Conic Gradients

#css #webdev #frontend #beginners
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3 min read
Webhook Security: How to Verify Incoming Requests with HMAC Signatures
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Webhook Security: How to Verify Incoming Requests with HMAC Signatures

#webdev #security #javascript #devops
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4 min read
What's Actually Inside a JWT Token (and How to Read One)
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What's Actually Inside a JWT Token (and How to Read One)

#webdev #security #javascript #beginners
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4 min read
CSS Minification: What It Removes, How Much It Saves, and When to Skip It
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CSS Minification: What It Removes, How Much It Saves, and When to Skip It

#webdev #css #performance #beginners
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3 min read
26 free browser tools, zero backend: how we built SnappyTools
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26 free browser tools, zero backend: how we built SnappyTools

#webdev #javascript #beginners #productivity
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4 min read
Build a Tip Calculator in Vanilla JavaScript: a beginner DOM project
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Build a Tip Calculator in Vanilla JavaScript: a beginner DOM project

#javascript #beginners #webdev #tutorial
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4 min read
Lorem Ipsum Explained: Why Developers Use Fake Latin and When to Stop
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Lorem Ipsum Explained: Why Developers Use Fake Latin and When to Stop

#webdev #beginners #design #productivity
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4 min read
HTML Entities Explained: When to Encode, When to Skip, and What Goes Wrong
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HTML Entities Explained: When to Encode, When to Skip, and What Goes Wrong

#webdev #html #beginners #security
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4 min read
YAML to JSON (and Back): A Practical Guide for Developers
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YAML to JSON (and Back): A Practical Guide for Developers

#webdev #devops #beginners #tools
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4 min read
Markdown Cheatsheet: Every Syntax Element You'll Actually Use
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Markdown Cheatsheet: Every Syntax Element You'll Actually Use

#webdev #productivity #beginners #tools
Comments
3 min read
HTML Minification: What It Is, How It Works, and When It Actually Matters
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HTML Minification: What It Is, How It Works, and When It Actually Matters

#webdev #performance #css #beginners
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3 min read
Password Security Explained: Why Length Beats Complexity (and How Entropy Works)
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Password Security Explained: Why Length Beats Complexity (and How Entropy Works)

#webdev #security #beginners #tools
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4 min read
Character Limits That Matter: Twitter/X, LinkedIn, Meta Descriptions, and More
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Character Limits That Matter: Twitter/X, LinkedIn, Meta Descriptions, and More

#webdev #productivity #beginners #tools
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3 min read
CSS Color Formats Explained: HEX, RGB, HSL, and When to Use Each
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CSS Color Formats Explained: HEX, RGB, HSL, and When to Use Each

#css #webdev #design #beginners
Comments
3 min read
QR Codes Explained: How They Work, What They Store, and How to Create One
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QR Codes Explained: How They Work, What They Store, and How to Create One

#webdev #productivity #beginners #tools
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4 min read
How to Remove Duplicate Lines from Text: Python, JavaScript, Bash, and Online
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How to Remove Duplicate Lines from Text: Python, JavaScript, Bash, and Online

#webdev #productivity #beginners #tools
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3 min read
CSS Gradients Explained: Linear, Radial, and Conic — With Real Examples
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CSS Gradients Explained: Linear, Radial, and Conic — With Real Examples

#css #webdev #beginners #design
Comments
4 min read
Keyword Density in 2026: What It Is, What to Avoid, and How to Check It
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Keyword Density in 2026: What It Is, What to Avoid, and How to Check It

#webdev #productivity #beginners #tools
Comments
4 min read
JSON Formatting: Why It Matters and How to Read Any JSON Response Instantly
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JSON Formatting: Why It Matters and How to Read Any JSON Response Instantly

#webdev #javascript #beginners #tools
Comments
3 min read
URL Encoding Explained: Why %20 Appears in URLs (and How to Decode It)
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URL Encoding Explained: Why %20 Appears in URLs (and How to Decode It)

#webdev #beginners #productivity #tools
Comments
3 min read
WCAG Color Contrast Explained: Why Your Text Might Be Failing Accessibility
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WCAG Color Contrast Explained: Why Your Text Might Be Failing Accessibility

#webdev #css #beginners #design
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3 min read
Unix Timestamps Explained: Why Computers Count From January 1, 1970
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Unix Timestamps Explained: Why Computers Count From January 1, 1970

#webdev #beginners #programming #tools
Comments
3 min read
MD5, SHA-1, SHA-256, SHA-512: Which Hash Algorithm Should You Actually Use?
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MD5, SHA-1, SHA-256, SHA-512: Which Hash Algorithm Should You Actually Use?

#webdev #security #beginners #tools
Comments
4 min read
UUID v4 vs UUID v7: Which Should You Use in Your Database?
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UUID v4 vs UUID v7: Which Should You Use in Your Database?

#webdev #beginners #tools #productivity
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3 min read
Binary, Hex, and Octal: The Number Base Cheat Sheet Every Developer Needs
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Binary, Hex, and Octal: The Number Base Cheat Sheet Every Developer Needs

#webdev #beginners #tools #productivity
Comments
3 min read
camelCase, snake_case, kebab-case: A Developer's Field Guide to Naming Conventions
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camelCase, snake_case, kebab-case: A Developer's Field Guide to Naming Conventions

#webdev #productivity #beginners #tools
Comments
3 min read
Base64 Encoding Explained: What It Is, When to Use It, and When Not To
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Base64 Encoding Explained: What It Is, When to Use It, and When Not To

#webdev #javascript #beginners #tools
Comments
3 min read
How to Spot Every Change Between Two Versions of a Text (Without Reading Both Line by Line)
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How to Spot Every Change Between Two Versions of a Text (Without Reading Both Line by Line)

#webdev #productivity #beginners #tools
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3 min read
From API to Spreadsheet: How to Convert JSON to CSV Without Writing a Script
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From API to Spreadsheet: How to Convert JSON to CSV Without Writing a Script

#webdev #productivity #javascript #beginners
Comments
4 min read
Flesch-Kincaid, Gunning Fog, and Why Your Writing Score Matters
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Flesch-Kincaid, Gunning Fog, and Why Your Writing Score Matters

#writing #webdev #productivity #beginners
Comments
3 min read
Stop serving unminified CSS — a 2-minute fix for faster pages
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Stop serving unminified CSS — a 2-minute fix for faster pages

#css #webdev #frontend #performance
Comments
2 min read
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