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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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Devadatta Baireddy

Mar 8

I Built a PDF Merger That Replaced My $99/Year SaaS Subscription

#python #productivity #opensource #devtools

5 min read

Gus

Mar 5

You Approved This MCP Server Yesterday. Today It's Stealing Your Files.

#security #mcp #ai #opensource

5 min read

freerave

Mar 6

1,000+ Followers! The DotSuite Ecosystem is Scaling

#showdev #opensource #productivity #watercooler

1 min read

Mar 5

Best Open-Source LLMs for RAG in 2026: 10 Models Ranked by Retrieval Accuracy

#ai #machinelearning #llm #opensource

15 min read

The Nexus Guard

Mar 8

I Found 9 Agent Identity Projects on GitHub. Only 2 Have Real Users.

#ai #security #opensource #agents

2 min read

firstdata

Mar 5

FirstData: Open Knowledge Base of 160+ Authoritative Global Data Sources with MCP Integration

#opensource #ai #mcp #datasets

2 min read

Mar 5

The Tech Behind Modern Offline Web Apps

#javascript #devops #opensource #security

1 min read

Tom Yahav

Mar 7

I Built a Memory Layer for Claude Code — It Saves Me Hours Every Week

#ai #claude #productivity #opensource

5 min read

Mar 5

I Built a Self-Hosted LLM Observability Tool for AI Applications (Logmera)

#ai #python #opensource #devtools

2 min read

WonderLab

Mar 5

Open Source Project of the Day (Part 6): AionUi - Free Cross-Platform AI Office Assistant, the Perfect Claude Cowork Alternative

#opensource #ai #typescript

6 min read

JT

Mar 5

Your Mac Is a Supercomputer. It's Time We Benchmarked It Like One.

#macos #opensource #llm #machinelearning

6 min read

Paul Desai

Mar 6

MirrorDNA: Personal AI Infrastructure on Consumer Hardware

#ai #infrastructure #opensource #systems

2 min read

Mar 4

We Taught AI Agents to Stop Talking Like Humans

#ai #agents #opensource #programming

9 min read

Lakshmi Sravya Vedantham

Mar 4

What Can AI See About You Right Now? I Built a Scanner to Find Out

#security #privacy #python #opensource

3 min read

Lakshmi Sravya Vedantham

Mar 4

Privacy Policies Are Designed to Be Unread. I Built a Tool to Make Them Honest.

#privacy #python #ethics #opensource

3 min read

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