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 (326)
Release engineering for Go
Fast cross-platform build tool
Git server with CI/CD, Kanban, and packages
Human-friendly HTTP request library for Node.js
A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ http://www.windows-internals.com
Internationalization libraries for JS
Scalable Python testing framework
Type-safe TypeScript SQL query builder
Modern UI for Ansible, Terraform, and other DevOps tools
Self-healing browser harness that enables LLMs to complete any task.
Participative open-source security engine
A theoretical reconstruction of the Claude Mythos architecture, built from first principles using the available research literature.
"OpenHarness: Open Agent Harness"
the subtitle editor :)
Light, fluffy, and always free - AWS Local Emulator
Fully autonomous & self-evolving research from idea to paper. Chat an Idea. Get a Paper. 🦞
A command-line tool for Lark/Feishu Open Platform — built for humans and AI Agents. Covers core business domains including Messenger, Docs, Base, Sheets, Calendar, Mail, Tasks, Meetings, and more, with 200+ commands and 19 AI Agent Skills.
AI skills framework by MiniMax for building task-specific AI agents.
The Database Toolkit for Python
High-performance remote cache-store
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.