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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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Chinmay Bhosale

Oct 20 '25

Search Types in Cognee

#ai #architecture #opensource

11 min read

Oct 21 '25

Deploy a Full-Stack AI Assistant on Vercel With One Click

#webdev #programming #ai #opensource

3 min read

Juan C. Del Monte

Oct 20 '25

Turning Pandas Dataframes into Hypercubes, Meet Cube Alchemy

#python #pandas #stramlit #opensource

1 min read

Oct 22 '25

MariaDB User? Share Your Experience in Community Survey

#mariadb #database #opensource #survey

1 min read

Sui Gn

Nov 24 '25

Declarative Identity and Emergent Semantic Spaces (Tech Spec)

#webdev #programming #blockchain #opensource

3 min read

Oct 21 '25

Here’s to find and fix your unused dependencies.

#opensource #knip #lint #storybook

2 min read

Bonnie for CopilotKit

Nov 21 '25

Build a Frontend for your Microsoft Agent Framework (Python) Agents with AG-UI

#webdev #ai #programming #opensource

17 min read

Nov 23 '25

Building GreenGovRAG

#ai #opensource #llm #datascience

6 min read

Nov 23 '25

MonkeysLegion 1.0.8: From Side Project to Production-Ready PHP Ecosystem

#php #laravel #symfony #opensource

7 min read

Carrie

Oct 20 '25

Top 5 Open-Source Anti-Bot Tools in 2025

#bot #opensource #top5 #security

3 min read

Altinity

Oct 20 '25

Join OSA CON 2025: Two Days of Open‑Source Analytics and AI (Nov. 4–5)

#events #opensource #ai #dataengineering

3 min read

Johannes Millan

Oct 20 '25

Open-Source Productivity Apps in 2025: A Careful Comparison

#opensource #productivity

5 min read

Oct 20 '25

For those who've contributed to open source, how did you find your first issue?

#opensource #github #webdev

1 min read

Hacktoberfest: Contribution Chronicles

Oct 19 '25

Improving Responsively App Documentation – Week 2 of Hacktoberfest

#showdev #opensource #hacktoberfest #webdev

1 min read

ElshadHu

Nov 23 '25

Open Source: My Path to Better Code

#learning #typescript #opensource #react

3 min read

Mohammed ALQuraishi

Nov 22 '25

Mastering Claude Code — A Free Open-Source Handbook for Developers

#opensource #ai #tooling #tutorial

1 min read

Hacktoberfest: Open Source Reflections

Jessica Temporal

Oct 21 '25

Field Notes: Hacktoberfest 2025, Week 3

#hacktoberfest #ai #git #opensource

6 min read

Ekong Ikpe

Oct 21 '25

Gnokestation WebOS

#webdev #opensource #iot #webperf

2 min read

Gitpulse

Nov 22 '25

I built GitPulse — A tool to help you find beginner-friendly open-source projects

#programming #productivity #beginners #opensource

1 min read

Oct 19 '25

🛡️ Launching Cyber Security Guard Defense Stack – AI-Powered & Open Source

#showdev #cybersecurity #opensource #ai

1 min read

Steven Hur

Nov 21 '25

How I Fixed a Confusing Bug in NumPy

#python #opensource #devjournal #beginners

2 min read

Nov 22 '25

Camunda Health Monitor v2.0 Open Source: AI-Powered Intelligence

#camunda #monitoring #opensource #devops

3 min read

Glen Hobby

Oct 19 '25

Code Yourself

#devchallenge #hacktoberfest #opensource

3 min read

Nov 22 '25

Introducing PrettyPrint — a PHP array pretty-printer with Python-/PyTorch-style formatting

#opensource #php #formatting #debug

3 min read

Nick

Oct 19 '25

I'm building an open-source AI ATC for flight sims (and looking for like-minded devs)

#ai #opensource #csharp #node

1 min read

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