MIT License

Permissive free software license / From Wikipedia, the free encyclopedia

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The MIT License is a permissive free software license originating at the Massachusetts Institute of Technology (MIT)[6] in the late 1980s.[7] As a permissive license, it puts only very limited restriction on reuse and has, therefore, high license compatibility.[8][9]

Quick facts: Publisher, SPDX identifier, Debian FSG compat...
MIT License
PublisherMassachusetts Institute of Technology
SPDX identifierMIT
(see list for more)[1]
Debian FSG compatibleYes[2]
FSF approvedYes[3][4]
OSI approvedYes[5]
GPL compatibleYes[3][4]
Linking from code with a different licenceYes

Unlike copyleft software licenses, the MIT License also permits reuse within proprietary software, provided that all copies of the software or its substantial portions include a copy of the terms of the MIT License and also a copyright notice.[9][10] As of 2020, the MIT License was the most popular software license found in one analysis,[11] continuing from reports in 2015 that the MIT License was the most popular software license on GitHub.[12]

Notable projects that use the MIT License include the X Window System, Ruby on Rails, Nim, Node.js, Lua, and jQuery. Notable companies using the MIT License include Microsoft (.NET), Google (Angular), and Meta (React).