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Open Source

May The Source Be With You! Articles about Open Source and Free Software as a philosophy, and its application to software development and project management.

submission guidelines

UPDATED APRIL 8, 2020

To keep this tag clean and meaningful, please ensure your post fits into at least one of the following categories:

Organizing, managing, running, or working in an Open Source project.
Open Source philosophy, licensing, and/or practical and legal topics thereof.
Advocacy and adoption of Open Source philosophy.

DO NOT use this tag if you are simply using technologies which happen to be open source.

You should NOT use this tag for any of the following:

Promoting open source projects, such as feature lists or announcements. (Use #news or Listings.)
Contributor requests. (Use #contributorswanted or Listings.)
Tutorials/articles that happen to use an open source tool. (Use appropriate technology tags.)
Showing off something you've built that happens to be open source. (Use the #showdev tag.)
Sharing lists of open source projects. (Use #githunt or the appropriate technology tags.)

Projects must comply with the Open Source Definition (see below) to legally use the term "open source".

As all "Free Software" officially complies with the standards of Open Source anyway, this tag covers both (collectively, FOSS).

about #opensource

Open Source is so much more than "you can read the code". It is formally defined by the Open Source Initiative.

"Open Source" should not be confused with the similar Free Software, which is defined by the Free Software Foundation. Generally, all Free Software is also Open Source, and the two camps often cooperate; however, the concepts are distinct! (The tags are merged here on DEV.to for simplicity, however.)

Open Source Hardware is defined and overseen by the Open Source Hardware Assocation

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Hacktoberfest: Open Source Reflections

Oct 5

Open Source & Hacktoberfest 2025 - Why It’s More Than Just a Celebration?

#hacktoberfest #hackathon #opensource #programming

4 min read

Cover image for Beyond Hacktoberfest: Building a True Open Source Journey

Hacktoberfest: Open Source Reflections

Ayu Adiati

Oct 27

Beyond Hacktoberfest: Building a True Open Source Journey

#opensource #hacktoberfest #codenewbie #beginners

7 min read

Cover image for Going Full-Time NeoHaskell

Nick Tchayka for NeoHaskell

Nov 4

Going Full-Time NeoHaskell

#career #programming #haskell #opensource

2 min read

Cover image for Hacktoberfest 2025: Diário de Campo, Semana 1

Hacktoberfest: Contribution Chronicles

Jessica Temporal

Oct 6

Hacktoberfest 2025: Diário de Campo, Semana 1

#hacktoberfest #git #opensource

2 min read

Oct 14

Building Arenadata’s Engineering Team: Growth Story from the Inside

#ai #career #opensource #database

3 min read

Cover image for Introducing domain_extractor: A High-Performance Ruby Gem for URL Parsing and Domain Extraction

Nov 3

Introducing domain_extractor: A High-Performance Ruby Gem for URL Parsing and Domain Extraction

#ruby #webdev #rubygem #opensource

3 min read

Cooper

Oct 1

Show My Work: TinyBones - Minimal Blogging Template

#webdev #opensource #minimal #astro

1 min read

Cover image for 🧭 Understanding the `man` Command in Linux

Farhad Rahimi Klie

Nov 5

🧭 Understanding the `man` Command in Linux

#linux #cli #linuxcommand #opensource

3 min read

Cover image for Day 21 of 90 Days of Code — Student Management System in Python

momina raheel (Moona)

Oct 1

Day 21 of 90 Days of Code — Student Management System in Python

#programming #beginners #python #opensource

1 min read

Cover image for Building a Free React Admin Dashboard with TypeScript and Tailwind CSS

Andris Buscariolli

Nov 3

Building a Free React Admin Dashboard with TypeScript and Tailwind CSS

#react #typescript #tailwindcss #opensource

3 min read

Cover image for Fixing the Half-Transaction Problem in Real-Time CDC

RisingWave Labs

Oct 14

Fixing the Half-Transaction Problem in Real-Time CDC

#programming #productivity #opensource #datascience

9 min read

hassony

Oct 23

How I built a Medical Radiation Visualizer with Python and Flask

#python #flask #physics #opensource

1 min read

Hrishikesh Dalal

Oct 14

Vanilla Verse & React Verse — Beginner-Friendly Open Source

#beginners #react #opensource #javascript

1 min read

Hacktoberfest: Contribution Chronicles

Nov 3

"LAW-J: I Rebuilt Java With Time Built Into Every Class, Method, and Variable"

#hacktoberfest #java #opensource #jvm

9 min read

ValeriiLindenPy

Sep 30

🚀Looking for collaborators for MVP: Delimo – a sharing platform for Serbia (Java / Vue / Android)

#portfolio #opensource #java #beginners

2 min read

Hacktoberfest: Contribution Chronicles

Anderson Yu-Hong Cai

Oct 12

PR-02 at Hacktoberfest: From Issue to Pull Request: Adding Windows Network Monitoring to SysMood

#hacktoberfest #opensource #cpp #funnytool

2 min read

Nov 3

Writing Your First Compiler - Part 3: Lexical Analysis

#beginners #computerscience #tutorial #opensource

8 min read

Cover image for AuditTrailJS an open-source library for Node.js

Oct 1

AuditTrailJS an open-source library for Node.js

#opensource #programming

1 min read

Cover image for Updating ASR examples in Hugging Face Transformers Hub datasets, clearer args, smoother Windows setup

OMOTAYO OMOYEMI

Sep 30

Updating ASR examples in Hugging Face Transformers Hub datasets, clearer args, smoother Windows setup

#python #opensource #huggingface #nlp

2 min read

Rim Choi

Oct 13

[Djangonaut][first PR] Week 1 ~ 2 (9.29 ~ 10.10)

#django #opensource #programming #webdev

2 min read

Cover image for How Verdent Deck Supercharged My Workflow - Building Apps with Multiple AI Agents in Parallel

Nov 4

How Verdent Deck Supercharged My Workflow - Building Apps with Multiple AI Agents in Parallel

#webdev #ai #opensource #productivity

5 min read

Oct 1

Logger in opencode codebase.

#opensource #cli #logger

3 min read

Fabián Guamán Flores

Nov 4

Build Interactive Node-Based Diagrams with fg-next-draw-canvas: A React Developer's Guide

#react #npm #opensource #typescript

7 min read

Cover image for Building a Lighthouse Performance Monitor: Tracking Web Performance Over Time

cenk

Nov 2

Building a Lighthouse Performance Monitor: Tracking Web Performance Over Time

#opensource #siteoptimization #siteperformance #lighthouse

5 min read

Suhani Pasricha 23BCE2235

Oct 4

I Made an AI Document Analyzer So You Don’t Have To (But You’ll Probably Want To)

#showdev #python #opensource #ai

3 min read

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