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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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Vasyl

Jun 2

I built an Android automation platform with AI Agent and OCR — looking for beta testers

#android #automation #ai #opensource

1 min read

Jun 1

I launched an open source tool on Product Hunt with no budget, no team, and no audience. Here's what actually happened.

#opensource #programming #productivity #webdev

3 min read

Jun 5

Is MCP Dead? When the Model Context Protocol Earns Its Complexity

#mcp #ai #llm #opensource

5 min read

Jun 1

Stop sharing one OpenAI key across all your users

#llm #opensource #ai #costtracking

1 min read

Jun 1

Catch prompt injection (and leaked secrets) in your AI agent's outgoing messages

#ai #security #llm #opensource

3 min read

Ash Lonare

Jun 1

Postbase vs. Supabase vs. Firebase: A Raw Architectural and Benchmark Comparison

#opensource #webdev #programming #postgres

2 min read

freerave

Jun 1

I Built a Code Screenshot Tool Inside My VS Code Extension — Here's How It Works (DotShare v3.4.0)

#vscode #opensource #typescript #webdev

7 min read

Abdulaziz Abdujalilov

Jun 1

How I built a quantum-inspired route optimizer in pure Python (no quantum hardware)

#opensource #productivity #machinelearning #python

2 min read

Olamilekan Lamidi

Jun 1

Laravel Google Sheets v1.1.0: Diff Previews, Sync Methods, Dry Runs, and Retry Backoff

#laravel #php #opensource #googlesheet

3 min read

Haji Rufai

Jun 1

I Implemented AES-128 from Scratch and Built a Secrets Vault in Python

#python #security #cryptography #opensource

5 min read

Jun 1

I built a free CLI that audits your Node.js + React project before you ship

#node #react #opensource #devtools

3 min read

Constantin Razinsky

Jun 14

UVS: a draw's fairness as a fact you can recompute — not a certificate you trust

#showdev #cryptography #opensource #security

5 min read

SKUMart

Jun 1

How to Convert Supplier CSVs to Shopify/Amazon/WooCommerce Without Uploading to a Server

#webdev #javascript #tutorial #opensource

3 min read

Jovan Chan

Jun 1

The Open-Source AI Stack in 2026: What Works Together

#opensource #ai #selfhosted #linux

5 min read

Jun 1

I A/B tested an MCP server that cut my Claude Code token cost

#showdev #ai #claude #opensource

4 min read

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