MIT License
Do whatever you want. Just keep the copyright notice.
Commercial use
✓ Yes
Modify
✓ Yes
Distribute
✓ Yes
Must open source changes
✗ No
Must attribute
✓ Yes
Patent grant
✗ No
What this license means
The MIT License is the most popular open source license. It lets you use, copy, modify, merge, publish, distribute, sublicense, and sell the software — with essentially no restrictions. The only requirement is that you include the original copyright notice and license text in any copy or substantial portion of the software.
When you encounter this license
Use MIT-licensed tools freely in any project — personal, commercial, proprietary. You can bundle it, modify it, sell products built with it. Just keep the license file somewhere in your project. This is the easiest license to work with.
Watch out for
No patent grant — if the software implements a patented algorithm, the MIT license doesn't protect you from patent claims. No warranty, no liability — standard for all OSS licenses.
Tools using MIT License (297)
Web application framework
Open source realtime backend in 1 file
Small, fast, scalable bearbones state management
Lightning fast, relevant, and typo-tolerant search engine
🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman
rsync for cloud storage — 70+ backends
Self-hosted Git service
Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors
👻 Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.
Explore layers in a Docker image
Independent publishing platform with memberships and newsletters
Opinionated code formatter
The best-benchmarked open-source AI memory system. And it's free.
The highest-scoring AI memory system ever benchmarked. And it's free.
Framework for orchestrating autonomous AI agents
Fast, reliable browser testing
Platform for universal React apps
Extremely fast Python linter and formatter, written in Rust
SDK and proxy to call 100+ LLM APIs in OpenAI format
Open-source AI engine, run any model locally
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.