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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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Hacktoberfest: Maintainer Spotlight

Jessica Temporal

Oct 27

Hacktoberfest 2025: Diário de Campo, Semana 4

#hacktoberfest #ai #git #opensource

3 min read

Natali

Oct 26

Designing an AI Immune System: Safeguarding AGI from Cognitive Errors

#webdev #programming #ai #opensource

1 min read

Apache SeaTunnel

Oct 24

Designing and Building X2SeaTunnel through AI Coding

#apacheseatunnel #opensource #coding #ai

17 min read

Cover image for Timepicker-UI v4: Rewritten From Scratch After 5 Years

Nov 27

Timepicker-UI v4: Rewritten From Scratch After 5 Years

#showdev #typescript #frontend #opensource

5 min read

Kyle Homen

Oct 28

Hacktoberfest Week 3

#godot #opensource

3 min read

Nov 6

Building SwiftCacheSDK: A Lightweight Image Caching Library for iOS

#swift #ios #opensource #mobile

4 min read

Hacktoberfest: Contribution Chronicles

DIPIKA VAMAN KANTAPPA POOJARI

Oct 24

Hackoctoberfest experience

#devchallenge #opensource #hacktoberfest

2 min read

DASWU

Oct 24

Building AI Inference with JuiceFS: Supporting Multi-Modal Complex I/O, Cross-Cloud, and Multi-Tenancy

#ai #opensource

15 min read

Cover image for 📢 We're opening a list of community projects! You can participate.

Anthony Max for HMPL.js

Nov 20

📢 We're opening a list of community projects! You can participate.

#webdev #javascript #programming #opensource

1 min read

Cover image for GitScroll I: The Unbroken Line

James Ross

Oct 24

GitScroll I: The Unbroken Line

#git #opensource #learning #development

12 min read

Hacktoberfest: Contribution Chronicles

Dharam Ghevariya

Oct 28

Continuing The Hacktoberfest with Cloudinary

#devjournal #hacktoberfest #opensource

3 min read

Oct 24

Set up an open-source AI analyst for PostgreSQL in 2 minutes

#ai #dataengineering #data #opensource

5 min read

Agustin V. Startari

Oct 28

Can a Sentence Give Orders Without a Speaker?

#discuss #programming #ai #opensource

3 min read

Cover image for Rekichizu: A Modern Take on Japan's Historical Maps

Sorami Shiromizu for MIERUNE

Nov 14

Rekichizu: A Modern Take on Japan's Historical Maps

#showdev #data #opensource #design

12 min read

Nov 6

Introducing TokiForge: A Framework-Agnostic Design Token Engine with Runtime Theme Switching

#webdev #programming #opensource #javascript

3 min read

Jakob Sandström

Nov 27

Stop Overcomplicating RAG: Why I Built a "Memory Server" on Postgres (and Open Sourced It)

#javascript #postgres #opensource #ai

3 min read

Hacktoberfest: Contribution Chronicles

Pratik

Oct 23

Contribution Chronicles: My Hacktoberfest 2025 Journey

#devchallenge #hacktoberfest #opensource

2 min read

Zach Park

Oct 24

How ChatGPT Apps Really Work: Inside the OpenAI Apps SDK

#openai #chatgptapps #opensource #python

2 min read

Apache SeaTunnel

Nov 6

Apache SeaTunnel Now Supports Metalake!

#apacheseatunnel #metalake #developer #opensource

5 min read

Cover image for My Hacktoberfest 2025 Journey: Chasing Badges, Trees & Impact 🎃🌳

Hacktoberfest: Contribution Chronicles

Oct 23

My Hacktoberfest 2025 Journey: Chasing Badges, Trees & Impact 🎃🌳

#hacktoberfest #opensource #github #webdev

3 min read

Cover image for Laravel Log Cleaner v2.01 - Memory-Efficient Log Management with Compression & Backup

Nov 6

Laravel Log Cleaner v2.01 - Memory-Efficient Log Management with Compression & Backup

#php #laravel #opensource #devops

5 min read

Navidreza Abbaszadeh

Oct 24

This Week’s Achievements at FA (FrontAdvanced)

#opensource #frontend #systemdesign #webdev

1 min read

kohei “koheyy123” uechi

Oct 24

You can check it out S3-bucket-size anytime.

#s3 #opensource

1 min read

Cover image for Don Quixote Of Orchestration: Building For Problems No One Sees Yet

Mak Sò

Nov 23

Don Quixote Of Orchestration: Building For Problems No One Sees Yet

#ai #opensource #programming #resources

6 min read

Nov 6

Comparison on Six Self-Hosted WAF

#cybersecurity #opensource #testing

4 min read

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