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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Jem for The DEV Team

Oct 1

Hacktoberfest 2026 DEV Challenges: Five Challenges, One Prompt, a New Theme Every Week

#devchallenge #hf26challenge #hacktoberfest #opensource

3

6 min read

Happy Hacktoberfest!

Jess Lee for Major League Hacking (MLH)

Oct 1

Everything You Need To Know About Hacktoberfest 2026: AI Belongs to Everyone 🎃

#hacktoberfest #opensource #ai #devchallenge

5

8 min read

Hacktoberfest: Maintainer Spotlight

Oct 1

Hacktoberfest 2026 Stopped Counting PRs. Make Your First Ones Anyway, One a Day

#hacktoberfest #opensource #beginners #devops

6 min read

Oct 2

I open-sourced the counting tool, and it immediately caught two of its own bugs

#showdev #coding #debugging #opensource

2 min read

Oct 2

OpenRive: A local-first editor for Rive animations

#opensource #animation #rive #node

2 min read

ujja

Oct 1

When Your AI Agent Reads Outdated Docs, Who Checks the Docs?

#mlhacks #devchallenge #hackathon #opensource

4 min read

Oct 1

Building & Distributing Custom Hermes AI Agents with Profile Distributions

#ai #devops #webdev #opensource

3 min read

miad

Oct 1

Building Deterministic Aviation Physics in TypeScript: Why the 120-Ft Rule Fails at High Density Altitudes

#typescript #webdev #opensource #algorithms

3 min read

Bargan Constantin

Oct 1

The scarce resource is not tokens, it is my attention — why I built ccdeck

#showdev #opensource #claudecode #ai

5 min read

Alex

Oct 1

Sity — AI assistant with persistent memory and its own cognitive architecture.

#ai #opensource #testing #claude

1 min read

Rishi G

Oct 1

Your Coding Agent Has a Network. Do You Know What It Did?

#agents #devops #opensource #ai

2 min read

hao li

Oct 1

Your AI-generated website looks AI-generated. I built a detector that scores it.

#css #python #opensource #webdev

2 min read

Alexandru Turcanu

Oct 1

tokenmaxxing: track AI coding usage across tools and devices

#showdev #opensource

2 min read

Ian

Oct 1

Stop eyeballing your agent's permissions. Prove them.

#discuss #ai #opensource #programming

5 min read

Oct 1

DocumentDB 0.117: scalar $group index pushdown

#documentdb #opensource #mongodb #postgres

10 min read

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