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]
 | |
| Publisher | Massachusetts Institute of Technology |
|---|---|
| SPDX identifier | MIT (see list for more)[1] |
| Debian FSG compatible | Yes[2] |
| FSF approved | Yes[3][4] |
| OSI approved | Yes[5] |
| GPL compatible | Yes[3][4] |
| Copyleft | No[3][4] |
| Linking from code with a different licence | Yes |
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[update], 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, Node.js, Lua, and jQuery. Notable companies using the MIT License include Microsoft (.NET), Google (Angular), and Meta (React).