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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Jessica Doering

Aug 22

I built Kintara because apparently having too many hobbies eventually leads to building your own document management system.

#showdev #ai #rust #opensource

3 min read

Aug 22

CVE-2026-73228: Request Parsing Size-Limit Bypass in Django REST Framework

#python #django #security #opensource

5 min read

Aug 22

Agent Gateway in 60 Seconds: Governed LLM Traffic with TrustGate

#ai #mcp #devops #opensource

2 min read

BLACK

Aug 22

I Built Neva, a Small Lattice Analysis Toolkit in Python

#github #opensource #python

2 min read

Avery Wang

Aug 22

Free AI Coding Credits Are a Benchmark, Not a Gift

#ai #opensource #programming #testing

5 min read

Aug 22

Building a Real-Time Market Microstructure Analyzer for Indian Equities

#python #fintech #react #opensource

4 min read

Dakota Wu

Aug 22

Free AI Coding Tier or Self-Hosted Stack: A Four-Constraint Decision Framework

#ai #programming #devops #opensource

4 min read

Sam Sun

Aug 22

Free vs Self-Hosted Models: A Break-Even Framework for Agent Workloads

#ai #llm #agents #opensource

5 min read

Riley Wu

Aug 22

Batch LLM Jobs Without Breaking the Bank: A Queue-First Architecture for Free Tiers

#python #llm #architecture #opensource

4 min read

Aug 22

Your CI checks your types. It doesn't check your translations.

#testing #opensource #webdev #javascript

9 min read

Finley Li

Aug 22

Stop Comparing Token Prices. Compare Cost Per Passing Patch.

#ai #cpp #testing #opensource

5 min read

Omq Khafi

Aug 22

I got tired of gluing routers, queues, cron, and auth together — so I built okengine (Bun/TS, MIT, self-hostable)

#typescript #backend #opensource #programming

7 min read

akihito

Aug 22

field-cage: a local-first alternative for GitHub Actions egress control

#githubactions #security #ebpf #opensource

5 min read

Aug 22

Building a Community Plugin Marketplace for OWASP OWTF (GSoC 2026)

#opensource #gsoc #python #security

6 min read

Moby

Aug 22

How We Verify DSH Plugins

#deepseek #ai #security #opensource

4 min read

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