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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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Agustin V. Startari

Sep 15

Who Is Responsible When Algorithms Rule? Reintroducing Human Accountability in Executable Governance

#discuss #ai #react #opensource

4 min read

Sreenath

Sep 10

How to Generate Code in Vim Without Leaving Your Editor (llmswap Tutorial)

#vim #tutorial #ai #opensource

5 min read

Cover image for FlashFuzz ⚡Quick URL Fuzzing & Secret Scanning, straight from your browser

Adem Kouki

Oct 14

FlashFuzz ⚡Quick URL Fuzzing & Secret Scanning, straight from your browser

#webdev #opensource #security #webtesting

3 min read

Apache SeaTunnel

Sep 11

One line of code caused the SeaTunnel Kafka connector to eat 12GB of memory in 5 mins!

#programming #bigdata #apacheseatunnel #opensource

2 min read

JPlus

Oct 14

🚀 Introducing JPlus – The Java Superset Language You've Been Waiting For!

#jplus #java #programming #opensource

1 min read

Oct 13

I Built a Free n8n Template Library with 2,641+ Automation Workflows 🚀

#showdev #automation #resources #opensource

7 min read

Hacktoberfest: Contribution Chronicles

Oct 13

Week 1 — My First Contribution to Hacktoberfest 2025

#hacktoberfest #programming #opensource

2 min read

Cover image for HACKTOBERFEST - A journey for Open-Source

Hacktoberfest: Contribution Chronicles

Anshuman Jadiya

Oct 13

HACKTOBERFEST - A journey for Open-Source

#devchallenge #hacktoberfest #opensource

3 min read

Bobby

Sep 29

Hacktoberfest Repositories To Contribute To In 2025

#hacktoberfest #opensource #beginners

2 min read

Cover image for Reactive, Strongly-Typed Configuration in .NET: Introducing Cocoar.Configuration v3.0

bwi

Oct 13

Reactive, Strongly-Typed Configuration in .NET: Introducing Cocoar.Configuration v3.0

#dotnet #opensource #csharp

4 min read

Cover image for Tigs: Never Lose That AI Context Again – Store Your LLM Chats in Git

Jinglei Ren for WellDefined.AI

Oct 2

Tigs: Never Lose That AI Context Again – Store Your LLM Chats in Git

#git #ai #opensource #productivity

4 min read

Cover image for We just open-sourced XAI’s Macrohard, an autonomous computer-using agent

Prateek YJ

Oct 13

We just open-sourced XAI’s Macrohard, an autonomous computer-using agent

#automation #ai #machinelearning #opensource

2 min read

Cover image for 🔥 Burn After Reading — Because Sometimes, Files Shouldn’t Live Forever

Rolan Lobo

Oct 13

🔥 Burn After Reading — Because Sometimes, Files Shouldn’t Live Forever

#python #beginners #opensource #privacy

1 min read

Hacktoberfest: Maintainer Spotlight

Wesley Bertipaglia

Oct 13

🧑‍💻 How a Simple Idea Turned Into One of the Most Important Projects of My Journey — The Story Behind Backend Challenges

#devchallenge #hacktoberfest #opensource

3 min read

Software Developer

Oct 13

100 Most Useful Open Source Projects

#opensource #programming #webdev

12 min read

Cover image for 8 Open Source Projects Every Developer Needs to Star on GitHub ⭐️📚

Madza

Oct 13

8 Open Source Projects Every Developer Needs to Star on GitHub ⭐️📚

#opensource #github #developer #productivity

6 min read

Cover image for # Coginesux : Faire péter les neurones et les algorithmes 😎

Hacktoberfest: Maintainer Spotlight

Khadidja Bounadja

Oct 13

# Coginesux : Faire péter les neurones et les algorithmes 😎

#devchallenge #hacktoberfest #opensource

3 min read

Oct 23

I Analyzed 100 Claude MCP Servers and Found Critical Security Flaws in 43% of Them

#cybersecurity #llm #opensource

5 min read

Cover image for Project of the Week: Svelte

Riyana Patel for PullFlow

Oct 3

Project of the Week: Svelte

#svelte #react #opensource

5 min read

Sep 10

smithery.yaml in mcp-mermaid codebase.

#ai #mcpmermaid #opensource #smithery

2 min read

Sep 10

Ripple, the elegant TypeScript UI framework.

#ripple #opensource #ui #typescript

3 min read

Cover image for How My AI Projects Hit the Jackpot in Hacktoberfest - A Maintainer's Tale

Hacktoberfest: Maintainer Spotlight

Shraddha

Oct 10

How My AI Projects Hit the Jackpot in Hacktoberfest - A Maintainer's Tale

#devchallenge #hacktoberfest #opensource #mcp

3 min read

Hacktoberfest: Contribution Chronicles

Leslie Fernando

Oct 13

From Guidance to Growth: My Hacktoberfest 2025 Journey

#devchallenge #hacktoberfest #opensource #codingjourney

2 min read

shieldx

Oct 13

We have identified over 50 Security Hardening Tasks for ShieldX!

#security #opensource #programming

2 min read

Cover image for TCJSgame Pro: The Ultimate JavaScript Game Engine Evolution

Kehinde Owolabi

Oct 13

TCJSgame Pro: The Ultimate JavaScript Game Engine Evolution

#javascript #gamedev #html #opensource

4 min read

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