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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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Muhammad Ali Afridi

Nov 3

Boosting Wan2.2 I2V Inference on 8 H100s — 2.5 Faster with Sequence Parallelism & Magcache

#performance #deeplearning #ai #opensource

3 min read

Hacktoberfest: Contribution Chronicles

ElshadHu

Nov 3

How I Implemented Search for Audit Logs During My Hacktoberfest Journey

#hacktoberfest #devjournal #opensource #github

4 min read

Cover image for 9 Productivity Hacks - AI Tools That I'm Using in 2025

Nov 3

9 Productivity Hacks - AI Tools That I'm Using in 2025

#ai #productivity #webdev #opensource

6 min read

Cover image for Making AI Models Faster, Cheaper, and Greener — Here’s How

Sara Han for Pruna AI

Nov 3

Making AI Models Faster, Cheaper, and Greener — Here’s How

#ai #machinelearning #efficiency #opensource

7 min read

Nov 3

Writing Your First Compiler - Part 3: Lexical Analysis

#beginners #computerscience #tutorial #opensource

8 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

Sumedhvats

Nov 3

Production-Ready Rate Limiter in Go: From Side Project to Distributed System

#systemdesign #algorithms #opensource #go

7 min read

Cover image for Reflections of Hacktoberfest

Hacktoberfest: Open Source Reflections

Nov 3

Reflections of Hacktoberfest

#programming #opensource #java #hacktoberfest

6 min read

Cover image for DAFU🦉 is Now Open Source: Enterprise-Grade Fraud Detection for Everyone

Muhammet Furkan Çankaya

Nov 3

DAFU🦉 is Now Open Source: Enterprise-Grade Fraud Detection for Everyone

#opensource #machinelearning #frauddetection #fastapi

5 min read

Cover image for Creative Tim UI - shadcn/ui blocks ready for v0, Lovable, Replit, Claude, and more.

Nov 3

Creative Tim UI - shadcn/ui blocks ready for v0, Lovable, Replit, Claude, and more.

#opensource #mcp #vibecoding #webdev

2 min read

Cover image for 🧩 Building a sustainable collaboration stack: XWiki + OpenProject live session

Nov 3

🧩 Building a sustainable collaboration stack: XWiki + OpenProject live session

#productivity #opensource #resources #tooling

1 min read

Cover image for 50 Best GitHub Repositories That Will Make You a great Developer

Nov 3

50 Best GitHub Repositories That Will Make You a great Developer

#github #opensource #softwareengineering #webdev

2 min read

Cover image for 10 Powerful Open Source AI Tools You Won’t Believe Are Still Free in 2026

Nov 3

10 Powerful Open Source AI Tools You Won’t Believe Are Still Free in 2026

#ai #opensource #aitools #machinelearning

7 min read

Cover image for JSON is Making You Lose Money!!!

Felipe Stanzani

Nov 2

JSON is Making You Lose Money!!!

#programming #ai #javascript #opensource

4 min read

Hacktoberfest: Contribution Chronicles

Norbert Dejlich

Nov 2

Hacktoberfest 2025

#devchallenge #hacktoberfest #opensource

1 min read

Cover image for Smart_Store API Guide: Exporting and Importing with Confidence

Emmanuel Victor

Nov 2

Smart_Store API Guide: Exporting and Importing with Confidence

#cpp #architecture #productivity #opensource

3 min read

Cover image for HacktoberFest: Return to Animation

Hacktoberfest: Contribution Chronicles

Nov 2

HacktoberFest: Return to Animation

#devchallenge #hacktoberfest #opensource

3 min read

Cover image for The Last Four PRs for 2025

Hacktoberfest: Contribution Chronicles

Nov 2

The Last Four PRs for 2025

#devchallenge #hacktoberfest #opensource #json

3 min read

Cover image for Building a TI-84 Plus CE Emulator in WebAssembly: Lessons from 100% Browser-Based Calculator Emulation

Furqan

Nov 3

Building a TI-84 Plus CE Emulator in WebAssembly: Lessons from 100% Browser-Based Calculator Emulation

#webassembly #webdev #opensource #javascript

5 min read

Cover image for The Last Four PRs for 2025

Hacktoberfest: Contribution Chronicles

Nov 2

The Last Four PRs for 2025

#devchallenge #hacktoberfest #opensource #json

3 min read

Cover image for I Built an Open-Source Hosting Control Panel in Laravel (Meet Laranode)

Nov 3

I Built an Open-Source Hosting Control Panel in Laravel (Meet Laranode)

#programming #cloud #devops #opensource

2 min read

Cover image for Comparing images with AVX

Hacktoberfest: Contribution Chronicles

Nov 2

Comparing images with AVX

#devchallenge #hacktoberfest #opensource #assembly

6 min read

Cover image for 🎃 Quote.Vote Hacktoberfest 2025 — Building Civic Tech, One Pull Request at a Time

Hacktoberfest: Maintainer Spotlight

Louis Girifalco

Nov 3

🎃 Quote.Vote Hacktoberfest 2025 — Building Civic Tech, One Pull Request at a Time

#devchallenge #hacktoberfest #opensource #webdev

3 min read

Cover image for Who's hiring — November 2025

fmerian

Nov 3

Who's hiring — November 2025

#career #devrel #opensource

2 min read

Cover image for Drop all databases. Use this API for data storage.

Timo

Nov 2

Drop all databases. Use this API for data storage.

#go #webdev #opensource #programming

2 min read

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