MIT 開源協議

MIT許可證（The MIT License）是許多軟件受權條款中，被普遍使用的其中一種。與其餘常見的軟件受權條款（如GPL、LGPL、BSD）相比，MIT是相對寬鬆的軟件受權條款。

簡介

MIT許可證之名源自麻省理工學院（Massachusetts Institute of Technology, MIT），又稱「X條款」（X License）或「X11條款」（X11 License） MIT內容與三條款BSD許可證（3-clause BSD license）內容頗爲近似，可是賦予軟件被受權人更大的權利與更少的限制。 運用情形

有許多團體均採用MIT許可證。例如著名的ssh鏈接軟件PuTTY與X Windows System (X11)即爲例子。Expat, Mono開發平臺庫，Ruby on Rails, Lua 5.0 onwards等等也都採用MIT受權條款。 條款內容

原文

Copyright (C) <year> <copyright holders> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 「Software」), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED 「AS IS」, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.[2] 被受權人權利

被受權人有權利使用、複製、修改、合併、出版發行、散佈、再受權及販售軟件及軟件的副本。 被受權人可根據程序的須要修改受權條款爲適當的內容。 被受權人義務

在軟件和軟件的全部副本中都必須包含版權聲明和許可聲明。 其餘重要特性

此受權條款並不是屬copyleft的自由軟件受權條款，容許在自由/開放源碼軟件或非自由軟件（proprietary software）所使用。 MIT的內容可依照程序著做權者的需求更改內容。此亦爲MIT與BSD（The BSD license, 3-clause BSD license）本質上不一樣處。 MIT條款可與其餘受權條款並存。另外，MIT條款也是自由軟件基金會（FSF）所承認的自由軟件受權條款，與GPL兼容。 MI協議模板

The MIT License (MIT)

Copyright © 2017 <copyright holders>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 「Software」), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 「AS IS」, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.