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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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Oct 24

A High-Level overview of Address Spaces: Their Place in ClangIR

#gpu #programming #opensource #cpp

8 min read

Cover image for DevDunia: All Developer and VAPT Tools in One Place

Hacktoberfest: Maintainer Spotlight

Ali Anwar

Oct 24

DevDunia: All Developer and VAPT Tools in One Place

#devchallenge #hacktoberfest #opensource

3 min read

Cover image for Why I Built a Free Security Scanner That Makes Sense

Oct 24

Why I Built a Free Security Scanner That Makes Sense

#cybersecurity #opensource #security #devops

5 min read

Hacktoberfest: Maintainer Spotlight

Oct 24

🎃 Contribute to a Go REST API Boilerplate — Perfect for Hacktoberfest Beginners!

#hacktoberfest #beginners #opensource #go

1 min read

Cover image for SVAR React Gantt v2.3: Modern Project Timelines for React 19

Olga T.

Oct 24

SVAR React Gantt v2.3: Modern Project Timelines for React 19

#react #gantt #webdev #opensource

4 min read

Hacktoberfest: Contribution Chronicles

ElshadHu

Oct 24

Diving Into Design Patterns via Hacktoberfest

#hacktoberfest #designpatterns #learning #opensource

3 min read

Apache SeaTunnel

Oct 24

Designing and Building X2SeaTunnel through AI Coding

#apacheseatunnel #opensource #coding #ai

17 min read

Cover image for BoltJS: pure JavaScript, components, and zero compilation

Oct 24

BoltJS: pure JavaScript, components, and zero compilation

#javascript #webdev #frontend #opensource

3 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

Hacktoberfest: Contribution Chronicles

DIPIKA VAMAN KANTAPPA POOJARI

Oct 24

Hackoctoberfest experience

#devchallenge #opensource #hacktoberfest

2 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: Open Source Reflections

DIPIKA VAMAN KANTAPPA POOJARI

Oct 24

Open Source Reflections: Hacktoberfest 2025

#devchallenge #hacktoberfest #opensource

2 min read

Cover image for DevTills - A Free Suite of Everyday Developer Tools (Built by a Dev, for Devs)

Danika Rathnayake

Oct 24

DevTills - A Free Suite of Everyday Developer Tools (Built by a Dev, for Devs)

#productivity #opensource #webdev #devtools

1 min read

Rebecca Respawn

Oct 24

The Cost of Clarity: Building Libraries For Artists

#opensource #openspec #speckit #qualitycontrol

2 min read

Oct 24

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

#ai #dataengineering #data #opensource

5 min read

hassony

Oct 23

How I built a Medical Radiation Visualizer with Python and Flask

#python #flask #physics #opensource

1 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

Cover image for Build Your Own Offline AI Voiceover Tool in Python — No APIs, No Limits

n3on

Oct 23

Build Your Own Offline AI Voiceover Tool in Python — No APIs, No Limits

#python #opensource #machinelearning #aivoice

1 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

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 AURALIS — Building a JARVIS-Level AI Assistant From Scratch

n3on

Oct 23

AURALIS — Building a JARVIS-Level AI Assistant From Scratch

#ai #machinelearning #devtools #opensource

1 min read

Oct 23

Automating API Testing with Open Source Testing Tools: Best Practices and Tips

#opensource #testingtools #devops #softwaretest

4 min read

Dmitrii

Oct 23

Building Reliable Pricing for AI Chatbots

#opensource #typescript #startup #ai

3 min read

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