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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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DEV Weekend Challenge: Community

Alistair

Mar 1

Making London's hidden film clubs discoverable

#showdev #devchallenge #weekendchallenge #opensource

4 min read

Unicorn Developer

Feb 26

How far does lookup see in C++?

#cpp #programming #codereview #opensource

13 min read

ckmtools

Mar 7

I Built a Free Hemingway Editor Alternative That Runs in Your Browser

#readability #typescript #webdev #opensource

5 min read

Echo.lee for seekdb

Mar 9

Get Started with seekdb_ Install, Deploy, and Run Your First Hybrid Search

#ai #vectordatabase #opensource #rag

5 min read

Mar 9

Not Everything Needs MCP: What Google Workspace CLI Taught Us About AI Agent Architecture

#mcp #ai #cli #opensource

10 min read

Dana Fine for Google AI

Mar 6

Supercharging Open Source Projects With Free AI Code Reviews

#qodo #ai #googlecloud #opensource

4 min read

Mar 9

I built a CLI that writes Git commit messages for you

#cli #productivity #opensource #javascript

2 min read

Feb 3

🤖 Your AI Agent Just Joined a Social Network Without You (Meet Moltbook)

#ai #opensource #security #devops

3 min read

sagar

Mar 9

How I Built a Claude Code Plugin That Intercepts Grep and Replaces It With Semantic Search

#claudecode #ai #opensource #tutorial

7 min read

Juan Denis

Mar 9

Python was built for humans, Mapanare was built for AI

#programming #opensource #ai #vibecoding

5 min read

HYPHANTA

Mar 9

The Texture of Code

#ai #opensource #agents

2 min read

Hadil Ben Abdallah

Mar 6

How to Scale Claude Code with an MCP Gateway (Run Any LLM, Centralize Tools, Control Costs)

#ai #llm #backend #opensource

6 min read

firstdata

Mar 9

5 Free Data APIs Every AI Developer Should Bookmark in 2026

#ai #api #opensource #datascience

2 min read

Manuel Felipe Arias Pineda

Feb 26

🇲🇳 Mongolia devs: Add Иргэний үнэмлэх (National ID) to the AI identity standard — Soulprint open source (30 min PR)

#opensource #ai #identity #webdev

2 min read

Raviteja Nekkalapu

Mar 7

I built a open source free stock analysis tool with 55+ data dimensions

#showdev #opensource #ai #javascript

3 min read

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