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)
Build system optimized for JS/TS monorepos
Container runtimes on macOS with minimal setup
Feature-rich ORM for Node.js
Memory engine and app that is extremely fast, scalable. The Memory API for the AI era.
The batteries-included agent harness.
Find secrets with Gitleaks 🔑
Monorepo platform for developers and AI agents
A community-built desktop app for DeepSeek Harness, with the plugin market and mobile remote control built in. Free, MIT, and not an official DeepSeek project.
Array framework for Apple silicon
Scalable load tests in plain Python
REST API for any Postgres database
Find and fix problems in your JavaScript code
C++ Library Manager for Windows, Linux, and MacOS
The original CI/CD automation server
ES module bundler
Serverless Functions Made Simple
Nix Packages collection & NixOS
Unlimited OCR Works: Welcome the Era of One-shot Long-horizon Parsing.
OpenAPI-generated API documentation
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.