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MIT license

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A short, highly permissive open-source software license that allows users to do almost anything they want with the code, including using it in closed-source proprietary software.

What it is

The MIT License is the most popular open-source license. It grants permission to use, copy, modify, merge, publish, distribute, sublicense, and sell the software. The only strict requirement is that the original copyright notice and permission notice must be included in all copies. It offers no warranties and holds the authors harmless from any liability.

When you would use it

You use the MIT license when you want to share your code with the world and place zero restrictions on how other people or companies utilize it.

Common operations

  • Releasing an open-source JavaScript library to the public with maximum freedom.
  • Legally incorporating an open-source tool into a paid SaaS product.

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