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)
Tiny elegant HTTP client based on Fetch
Fully featured open source mail delivery platform
Create PDF files using React
ARIS ⚔️ (Auto-Research-In-Sleep): lightweight Markdown-only skills for autonomous ML research: cross-model review loops, idea discovery, and experiment automation. No framework, no lock-in. Works with Claude Code, Codex, OpenClaw, or any LLM agent.
Rebuild the object in a reference image as a code-only, procedural, quality-gated, animation-ready Three.js model. Token-efficient image-to-3D.
SMTP testing tool
Fast cross-platform build tool
Release engineering for Go
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
"OpenHarness: Open Agent Harness"
A static analyzer for Java, C, C++, and Objective-C
:mag: Quick file search & app launcher for Windows with community-made plugins
Git server with CI/CD, Kanban, and packages
📻Terminal/ssh/sftp/ftp/telnet/serialport/RDP/VNC/Spice client(linux, mac, win)
Claude + Obsidian knowledge companion. Persistent, compounding wiki vault based on Karpathy's LLM Wiki pattern. /wiki /save /autoresearch
Multiplayer agent harness for work
Human-friendly HTTP request library for Node.js
Participative open-source security engine
A theoretical reconstruction of the Claude Mythos architecture, built from first principles using the available research literature.
Internationalization libraries for JS
This guide is for informational purposes only and does not constitute legal advice. For licensing decisions in commercial products, consult a qualified attorney.