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 (608)
Open source fullstack Next.js framework with backend superpowers
Enhanced ChatGPT clone with multiple AI providers
A unified trading API with more than 100 crypto exchanges and prediction markets in JavaScript / TypeScript / Python / C# / PHP / Go / Java
TypeScript-first schema validation with type inference
Thirteen editorial diagram types for Claude Code. Self-contained HTML + SVG. No shadows, no Mermaid-slop.
Build resilient language agents as graphs
Analytical in-process SQL database
DeepSeek + MiMo coding agent in terminal
A new type of shell
Express-inspired web framework for Go
Extremely fast bundler for the web
Open source notification infrastructure
Open source product analytics, session recording, and A/B testing
Extremely fast DataFrame query engine
Smarter cd command for all major shells
Teams-first Multi-agent orchestration for Claude Code
Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot.
Privacy-focused website analytics
Open Multi-Agent Interactive Classroom. Get an immersive, multi-agent learning experience in just one click
Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.