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)
Next-gen testing framework powered by Vite
SMTP testing tool
Release engineering for Go
Fast cross-platform build tool
Human-friendly HTTP request library for Node.js
Git server with CI/CD, Kanban, and packages
Internationalization libraries for JS
Scalable Python testing framework
Type-safe TypeScript SQL query builder
Modern UI for Ansible, Terraform, and other DevOps tools
Participative open-source security engine
High-performance remote cache-store
The Database Toolkit for Python
Official batteries-included Redux toolset
ML experiment tracking
Fast and secure image processing server
The Microsoft community Windows Package Manager manifest repository
Fully autonomous & self-evolving research from idea to paper. Chat an Idea. Get a Paper. 🦞
Low code web framework for real world applications, in Python and Javascript
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.