Open Source - DEV Community

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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).

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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Focuses on community-driven open source

nyaomaru

Nov 4

Meet Necoz! 😸 Small. Simple. Useful.

#opensource #typescript #software #community

40

2 min read

Over 115k participants and 500+ global meetups

Noah Brinker for The DEV Team

Nov 3

That's a Wrap on Hacktoberfest 2026! 🎃👻

#hacktoberfest #hf26challenge #opensource #ai

2 min read

MLH Team for Major League Hacking (MLH)

Nov 5

Prompt Pad: What Are Open-Weight Models?

#opensource #ai #beginners #codenewbie

1 min read

Nov 5

One word in a chat took my shop offline. I built it that way.

#ai #devops #opensource #sre

5 min read

Martin Šošić for Wasp

Nov 5

A Maintainer's Advice on Contributing to Open Source in 2026

#opensource #ai #github #programming

7 min read

Nov 5

Building a free embeddable widget that earns attribution honestly: iframe + credit line design

#webdev #javascript #security #opensource

4 min read

Nov 5

Fast Compose: Run Jetpack Compose code instantly without compiling

#android #kotlin #mobile #opensource

1 min read

Matteo Cavalleri

Nov 5

Select first, then act: a tour of HUME

#vim #neovim #helix #opensource

5 min read

Ali Ahmed

Nov 5

Localhost is not authentication: fixing a CWE-306 webhook in an AI agent framework

#security #aiagents #opensource #node

3 min read

Nov 6

The detailed conditions I knew on the day I measured were gone when I looked at the graph later

#showdev #opensource #productivity #ai

3 min read

zfy0701 for AgentConnect

Nov 6

How we moved our agents from personal terminals into team channels

#ai #agents #opensource #productivity

11 min read

xiun xiao

Nov 6

Open models vs Claude: Kimi K3, GLM 5.3 and DeepSeek V4 Pro against Sonnet 5.5 and Opus 5.5

#ai #llm #programming #opensource

5 min read

zhitong

Nov 6

Product #45 · WeChat Red Packets (2014): How a 9-Person Team Coded a Thousand-Year Tradition and Completed a Decade of Bank-Card Onboarding in One Night

#showdev #opensource #tools #productivity

2 min read

Nov 5

Mining 14,351 Chess Puzzles with Stockfish 18 (and the Illegal-FEN Trap in chess.js)

#javascript #swift #opensource #gamedev

5 min read

zhitong

Nov 6

PM #52 · Marissa Mayer: Guarding the Most Valuable Blank Page on Earth with 41 Shades of Blue and Building Silicon Valley's APM Factory

#showdev #opensource #tools #productivity

2 min read

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