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 (397)
Docker compose stack manager
Simple, unobtrusive authentication for Node.js
Productive web framework for Elixir
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.
Lightweight composable Go HTTP router
Turso is an in-process SQL database, compatible with SQLite.
Instant-loading web apps, without effort
High-performance JavaScript tools (parser, linter, formatter)
Durable execution platform for workflow orchestration
Primitive and flexible state management for React
Free and open source icons for web design
全面ESM+Vue3+Vite+Element-Plus+TypeScript编写的一款后台管理系统（兼容移动端）
Buzz transcribes and translates audio offline on your personal computer. Powered by OpenAI's Whisper.
A simpler site generator
Markdown for the component era
React DOM testing utilities
Instant on-demand atomic CSS engine
Open source agentic operating system
Ergonomic framework for Bun and Web Standards
The agent engineering platform
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.