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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 I built a privacy-first IP API and it's free.

Arshvir

Dec 17 '25

I built a privacy-first IP API and it's free.

#discuss #programming #webdev #opensource

1 min read

Dec 17 '25

The Long Echo Toolkit: Preserving Your Digital Life

#python #cli #opensource #sqlite

3 min read

Behram

Jan 12

How I built a "Magic Move" animation engine for Excalidraw from scratch published

#react #animation #webdev #opensource

3 min read

Cover image for PassForgePro: Learning-focused Local-Only Password Manager

Can Arkadaş Deliktaş

Jan 21

PassForgePro: Learning-focused Local-Only Password Manager

#beginners #python #opensource #security

2 min read

fmerian

Jan 21

Launching Mastra 1.0 on Product Hunt - Reasoning

#showdev #devjournal #ai #opensource

2 min read

Vitor Veiga Vasconcelos Neto

Dec 21 '25

I’m building an open-source visual layer on top of GitHub

#showdev #tooling #github #opensource

2 min read

Cover image for A new PHP8+ Unit Testing Framework called MicroUnit

Dec 17 '25

A new PHP8+ Unit Testing Framework called MicroUnit

#webdev #php #testing #opensource

2 min read

msrajput08

Jan 20

🤖 Building a Personal AI Assistant in Python – Jarvis

#python #ai #opensource #sideprojects

1 min read

Heapstack

Jan 21

Moving from GitHub to Codeberg(Forgejo)

#opensource #github #codeberg #forgejo

4 min read

Cover image for How Clean Is Famous Open Source Code? I Measured Flask and FastAPI.

Jan 21

How Clean Is Famous Open Source Code? I Measured Flask and FastAPI.

#python #webdev #opensource #vibecoding

3 min read

Karan Singh Chandel

Jan 21

I Built a CLI Tool to Fix dbt Governance Problem Using DataHub

#datahub #dbt #datagovernance #opensource

4 min read

Cover image for Building 10 Python Packages for Enterprise FastAPI Apps: What I Learned

Dec 17 '25

Building 10 Python Packages for Enterprise FastAPI Apps: What I Learned

#python #fastapi #opensource #azure

3 min read

Labdev

Dec 16 '25

PyTorch Models Are Executables: Why I Built a Scanner to Stop "Pickle Bombs"

#security #python #ai #opensource

3 min read

Unicorn Developer

Jan 21

How sharp is your attention as a C++ programmer?

#cpp #programming #task #opensource

2 min read

Jan 21

Why Go is the Perfect Language for Building a Temporary Email Service

#go #backend #systemdesign #opensource

1 min read

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