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 (199)
Self-hosted monitoring tool
Elegant PHP web application framework
Next generation frontend tooling
Open source API development ecosystem
Simple terminal UI for git commands
Progressive Node.js framework for scalable server-side apps
Leading open source headless CMS, fully JavaScript
Fast, unopinionated, minimalist web framework for Node
Simple HTML5 Charts
Use Garry Tan's exact Claude Code setup: 15 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA
Easy-to-maintain documentation websites
Real-time bidirectional event-based communication
Cloud-native application proxy
Open source self-hosted note-taking
Web application framework
The web framework for content-driven websites
Small, fast, scalable bearbones state management
Open source realtime backend in 1 file
Lightning fast, relevant, and typo-tolerant search engine
rsync for cloud storage — 70+ backends
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.