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 (562)
Progressive Node.js framework for scalable server-side apps
AI generates editable, beautifully designed PPTX from any document, no design skills needed | 15 examples, 229 pages
Leading open source headless CMS, fully JavaScript
Get your documents ready for gen AI
Fast, unopinionated, minimalist web framework for Node
Simple HTML5 Charts
Easy-to-maintain documentation websites
Cloud-native application proxy
Thirteen editorial diagram types for Claude Code. Self-contained HTML + SVG. No shadows, no Mermaid-slop.
Open source self-hosted note-taking
Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors
The web framework for content-driven websites
👻 Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.
Real-time bidirectional event-based communication
SDK and proxy to call 100+ LLM APIs in OpenAI format
A coding-agent skill for multi-phase security audits with independently verified, machine-readable findings
Open source realtime backend in 1 file
rsync for cloud storage: 70+ backends
Framework for orchestrating autonomous AI agents
The best-benchmarked open-source AI memory system. And it's free.
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.