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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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Mar 1

I Reviewed My Own Code Like I Was Trying to Break It

#opensource #security #webdev #buildinpublic

6 min read

Feb 6

🚀 Bullstudio — A Prisma-Studio-Style Dashboard for BullMQ You Can Run in Seconds

#showdev #monitoring #node #opensource

3 min read

SurveyJS

Mar 12

How to Add a Form Wizard to Your Website (React, Angular, Vue, plain JS)

#javascript #webdev #json #opensource

5 min read

Mar 10

I built a VS Code extension that lets you chat with your database - everything runs locally

#showdev #vscode #opensource #rag

3 min read

Abid Khan

Mar 12

🔥 MongoFire — Offline‑First Sync for MongoDB (Local + Atlas)

#mongoose #opensource #mongofire #mongodb

2 min read

Mar 12

Introducing Teatree: Parallel Multi-Repo Development with AI Agents

#ai #automation #productivity #opensource

19 min read

Mar 12

I Built a Blender Addon That Cleans Messy Scenes in One Click

#blender #python #opensource #3d

2 min read

Mar 12

How I built a free HEIC image converter with Rust + libvips

#rust #webdev #opensource #programming

1 min read

Mar 12

Polymarket Trading Bots: My Recent Open-Source Projects for Automated Prediction Market Trading

#showdev #automation #opensource #python

4 min read

Hcan

Feb 26

I Had an AI Agent Build Me a Full App. 46K Lines of Code, 3 Platforms, Zero Dart Knowledge

#showdev #ai #opensource #flutter

6 min read

Feb 6

Early data modeling for backend teams: migrations first or design the data layer in isolation?

#webdev #devtool #database #opensource

1 min read

Feb 10

Top 5 MCP Gateways for 2025: Production-Ready Solutions Compared

#opensource #ai #programming #mcp

5 min read

anoop p

Mar 12

I Built a Free, Offline Invoice App with Flutter - No Cloud, No Subscription, No BS

#flutter #opensource #productivity #invoise

4 min read

Hoang Le

Feb 6

LiteERP - Open Source

#showdev #architecture #opensource #react

1 min read

Andy

Mar 12

We built a tool to stress test AI agents with simulated conversations

#showdev #opensource #agents

1 min read

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