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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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Aug 1 '25

Promptfoo x Qwen3-Coder: Unmasking Vulnerabilities in 480 Billion Parameters

#promptfoo #opensource #security #llm

14 min read

Bonnie for CopilotKit

Jul 30 '25

Build a Fullstack Stock Portfolio Agent with Mastra and AG-UI

#webdev #programming #opensource #ai

23 min read

Ricardo Sueiras for AWS

Jul 31 '25

AWS open source newsletter, #212

#opensource #aws

27 min read

Aug 1 '25

Introducing hyperwiz: The Next-Generation TypeScript HTTP Client

#webdev #opensource #npm #typescript

1 min read

Jul 21 '25

The new best way to master LeetCode fast is with this free & open source application

#interview #opensource #react #productivity

2 min read

NocoBase

Jul 21 '25

4 Powerful Open Source Alternatives to Salesforce (With Cost Comparison You’ll Love)

#opensource #learning #lowcode #nocode

9 min read

lucafabbri

Jul 31 '25

Concordia: The Open-Source .NET Mediator You’ve Been Waiting For

#cqrs #mediator #opensource #mediatr

9 min read

Sulaiman AlRomaih

Jul 21 '25

PastePoint – Zero-Signup File Sharing & Chat over LAN or Private Code 🚀

#showdev #opensource #webdev #privacy

2 min read

Ghazi

Jul 31 '25

Docmd: Markdown to Docs, No Bullshit Documentation Generator

#opensource #node #markdown #webdev

2 min read

Jul 31 '25

The Untold Misadventures of Red Teaming Kimi K2 with Promptfoo

#kimi #opensource #promptfoo #security

14 min read

Jun 28 '25

🌍 Build My Own Telegram Translator Bot with Python

#python #programming #opensource #learning

2 min read

Phinease

Jul 21 '25

🚀 Build AI Agents from a Prompt — Meet Nexent, the Open-Source Agent Platform

#agentaichallenge #rag #mcp #opensource

3 min read

Bonnie for CopilotKit

Aug 20 '25

Build Your Own AI Stock Portfolio Agent with Agno + AG-UI

#webdev #programming #ai #opensource

22 min read

Faruk

Jul 20 '25

The SQL Renaissance: More Than Just Tables

#programming #opensource #sql #mariadb

3 min read

Pavel

Jul 31 '25

My LLM Was a Terrible Co-Pilot, So I Built It a Better Cockpit: Introducing AxleLLM

#ai #opensource #node #javascript

4 min read

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