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MIT License
A short and simple permissive license with conditions only requiring preservation of copyright and license notices.
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MIT License
"license": "MIT"
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Compatibility & Comparison
Common License Questions
What is "Copyleft"?
Copyleft licenses (like GPL) require that any derivative works also be distributed under the same license. If someone modifies your code or includes it in their project, they must open-source their project too.
What happens if I don't provide a license?
By default, if you publish code without a license, exclusive copyright applies. This means nobody else can legally use, modify, or distribute your code without explicit permission, even if it's public on GitHub.
Can I change a license later?
Yes, but you can only change it for future versions. Anyone who received the software under the original license can continue using that version under those terms. If you accepted external contributions, you generally need the contributors' permission to relicense.
What is the difference between MIT and Apache 2.0?
Both are permissive licenses, but Apache 2.0 provides an express grant of patent rights and a retaliation clause if someone sues you for patent infringement. MIT is shorter and simpler but has no patent protections.
Does open source mean non-commercial?
No. By definition (via the Open Source Initiative), a true open source license cannot restrict anyone from making money with the code. If a license prohibits commercial use, it is not "Open Source" (e.g., Creative Commons NonCommercial).