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)
Extremely fast DataFrame query engine
Analytical in-process SQL database
TypeScript & JavaScript ORM
Privacy-focused website analytics
Declarative, efficient JS library for building UIs
Smarter cd command for all major shells
Enhanced ChatGPT clone with multiple AI providers
Fast, disk-space efficient package manager
React framework for internal tools and admin panels
Create beautiful applications using Go
Build better websites with web fundamentals
Open source product analytics, session recording, and A/B testing
Simple Nginx reverse proxy UI
High performance minimalist Go web framework
Docker-powered PaaS for app lifecycle management
Render After Effects animations on web
Feature-rich ORM for Node.js
Build system optimized for JS/TS monorepos
Syntax-highlighting pager for git/diff output
Web framework built on Web Standards
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.