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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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Cover image for Reflection on my Contribution to Open Source in 2025 Hacktoberfest

Hacktoberfest: Open Source Reflections

Oct 31

Reflection on my Contribution to Open Source in 2025 Hacktoberfest

#devchallenge #hacktoberfest #opensource #ai

4 min read

Cover image for My First Open Source PR — Done During Hacktoberfest 2025!

Hacktoberfest: Contribution Chronicles

Prathamesh Thakre

Oct 2

My First Open Source PR — Done During Hacktoberfest 2025!

#beginners #opensource #java #hacktoberfest

2 min read

Cover image for I Built my own UI Library on Top of shadcn/ui

Oct 30

I Built my own UI Library on Top of shadcn/ui

#webdev #javascript #beginners #opensource

1 min read

Cover image for 6 Open Source Alternatives to Microsoft Access

NocoBase

Sep 28

6 Open Source Alternatives to Microsoft Access

#opensource #data #database #github

7 min read

Cover image for ## 🚀 My First Hacktoberfest Experience

Hacktoberfest: Contribution Chronicles

Irfan Khan

Oct 30

## 🚀 My First Hacktoberfest Experience

#devchallenge #hacktoberfest #opensource #webdev

1 min read

Cover image for The 90-Minute Sprint Model: How Deep Work Cycles Transform Developer Output

Pratham Naik for Teamcamp

Oct 31

The 90-Minute Sprint Model: How Deep Work Cycles Transform Developer Output

#webdev #productivity #devops #opensource

6 min read

Oct 31

Resonant Convergence Analysis (RCA): Intelligent Early Stopping That Cuts Training Time by 35–45%

#deeplearning #machinelearning #opensource

2 min read

Cover image for My Journey as a Judge at CBIT Hacktoberfest 2025 — Lessons from the Other Side of the Table

Hacktoberfest: Open Source Reflections

Oct 30

My Journey as a Judge at CBIT Hacktoberfest 2025 — Lessons from the Other Side of the Table

#hackathon #webdev #opensource #ai

3 min read

JPlus

Oct 31

🌟 Introducing JPlus – A Modern Java Superset Language

#debugging #opensource

4 min read

Cover image for What are your goals for the week? #146 HacktoberFest is coming

Sep 29

What are your goals for the week? #146 HacktoberFest is coming

#discuss #opensource #hacktoberfest #productivity

2 min read

Cover image for Contribution Chronicles: From Issue to Impact (Hacktoberfest)

Hacktoberfest: Contribution Chronicles

Oct 28

Contribution Chronicles: From Issue to Impact (Hacktoberfest)

#devchallenge #hacktoberfest #opensource

5 min read

Hacktoberfest: Open Source Reflections

Sheefa Nigar Syed

Oct 30

My Hacktoberfest Journey: From "Maybe Later" to "Merge Successful!"

#devchallenge #hacktoberfest #opensource #supercontributor

2 min read

Cover image for The Inspiring Story of the Popular Open-Source Library—Shadcn Form Builder

John Pagley for Joyfill

Oct 29

The Inspiring Story of the Popular Open-Source Library—Shadcn Form Builder

#programming #opensource #react #buildinpublic

3 min read

Oct 30

I built InvisiBrain — a free, open-source alternative to Cluely and Parakeet AI

#ai #javascript #python #opensource

1 min read

Juls

Oct 18

I built a library to define DTOs, Validation, and Schema in one place. Thoughts?

#java #opensource #validation

2 min read

Cover image for Hacktoberfest Rant

Hacktoberfest: Open Source Reflections

Oct 28

Hacktoberfest Rant

#devchallenge #hacktoberfest #opensource

3 min read

Oct 30

Introducing SysBrain: A Cognitive Automation Framework for Windows Power Users”

#productivity #security #opensource

1 min read

Sep 27

Lab 3: OSD600

#git #github #opensource #webdev

3 min read

Cover image for 📢 HMPL v3.1: New major update!

Anthony Max for HMPL.js

Oct 25

📢 HMPL v3.1: New major update!

#webdev #javascript #programming #opensource

3 min read

Cover image for Como ajudar as pessoas a contribuirem com seu projeto Open Source

Hacktoberfest: Open Source Reflections

Morganna

Oct 29

Como ajudar as pessoas a contribuirem com seu projeto Open Source

#devchallenge #hacktoberfest #opensource #braziliandevs

2 min read

Havilah Academy

Oct 30

Final Sprint: Just 1 Day Left!

#ai #opensource #machinelearning #hackathon

1 min read

Cover image for Hacktoberfest 2025: Building Open Source Tools That Matter - A Maintainer's Journey

Hacktoberfest: Maintainer Spotlight

Aditya

Oct 28

Hacktoberfest 2025: Building Open Source Tools That Matter - A Maintainer's Journey

#opensource #hacktoberfest #devchallenge #ai

4 min read

Oct 30

🤖 Introducing ALTK, the open-source agent lifecycle toolkit

#altk #opensource #agents #agenticai

6 min read

Cover image for Building a Comprehensive Reddit CLI Tool: From Basic Posting to Full Reddit Management with 33+ Commands

Vishwaraja Pathi (Vishwa)

Sep 26

Building a Comprehensive Reddit CLI Tool: From Basic Posting to Full Reddit Management with 33+ Commands

#reddit #python #cli #opensource

5 min read

Cover image for Shadcn UI Multi Form — A new version is coming soon!

Santiago Moraga Caldera

Oct 30

Shadcn UI Multi Form — A new version is coming soon!

#opensource #nextjs #shadcnui #frontend

1 min read

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