MIT License


The MIT License is an open-source software licensing agreement that allows individuals or organizations freedom to use, copy, modify, merge, publish, distribute, sublicense, and even sell copies of the original software. Essentially, it gives wide-ranging permissions with the requirement that the original copyright notice and permission notice be included in all copies of the software. The license is named for the Massachusetts Institute of Technology where it originated.


The phonetic pronunciation of the keyword “MIT License” is “Em-Ay-Tee Lai-suhns”.

Key Takeaways

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  1. The MIT License is an open source license that allows software to be freely used, modified, and shared.
  2. The license is widely used and is very permissive, putting only very limited restriction on reuse.
  3. MIT Licensed works, modifications, and larger works may be distributed under different terms and without source code.



The MIT License is an important technology term as it represents a permissive free software license that originates from the Massachusetts Institute of Technology. This license places only minimal restrictions on software reuse, and it allows for both open source and proprietary use. This means a person can take a licensed software, modify it, and distribute it without worrying about legal repercussions, given they provide appropriate attribution. The simplicity and freedom provided by the MIT License have made it one of the most popular license models in the software development world. It is widely used not just by companies who want to open source their codes while still maintaining the right to make a profit off them, but also by individual developers who wish to share their work with the community. Hence, the MIT License plays a crucial role in promoting innovation, collaboration, and knowledge sharing in the field of technology.


The MIT License is a widely adopted, permissive software license that allows users remarkably broad flexibility in how they can use, modify, distribute, or even sell software. This license aims to maximize the freedom for developers and users, eliminating almost all restrictions on what can be done with the licensed software. Essentially, the MIT License gives users the right to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the software, with the only obligation being to include the copyright notice and the license’s permission notice in all copies or substantial portions of the software.The purpose of the MIT License is to stimulate innovation in software development by ensuring that anyone using the licensed software can modify and extend it for their needs without concerns about legal complications or fees. It is used extensively in open source applications whereby developers all over the world are given the freedom to contribute, use, and distribute the software. It supports the open source movement, fostering a spirit of collaboration and transparency. Thus, this license is considered a key instrument in propelling the development of many cutting-edge technologies by promoting the sharing of code and collaborative software development.


1. **.NET Core**: .NET Core is a free and open-source managed software framework for Windows, Linux, and macOS. It is a project under the .NET platform, which is a part of Microsoft’s MIT License portfolio.2. **Rails Framework**: Rails, also known as Ruby on Rails, is a free open-source web application framework written in Ruby. It uses the MIT License and is known for its simplicity and productivity, as it allows developers to write less code while accomplishing more tasks.3. **jQuery**: jQuery is one of the most widely used JavaScript libraries on the web. It’s open-source and is licensed under the MIT License. This extremely popular tool helps simplify HTML document traversing, event handling, and animation on client side scripting.

Frequently Asked Questions(FAQ)

**Q: What is the MIT License?**A: The MIT License is a permissive free software license that originated at the Massachusetts Institute of Technology. It allows users to use, copy, modify, merge, publish, distribute, sublicense, and sell copies of the software under minimal restrictions.**Q: Where can I find the text of the MIT License?**A: You can find the text of the MIT License on the Open Source Initiative’s website or directly on the MIT website.**Q: Is the MIT License compatible with GPL?**A: Yes, the MIT License is compatible with the General Public License (GPL). This means you can safely combine software released under both these licenses without violating the terms of either one.**Q: Can proprietary software use MIT-licensed code?**A: Yes, the MIT License is permissive, which allows the code to be used in proprietary software as long as the licensing agreement is included.**Q: What kind of projects usually use the MIT License?**A: Because of its permissiveness, the MIT License is popular among open-source projects as well as commercial projects. It’s commonly used in projects like .NET Core, Rails, jQuery, and many more.**Q: What does it mean to sublicense under the MIT License?**A: Sublicensing under the MIT License means that you can grant a sublicense to another party, essentially authorizing them to use, copy, modify, and distribute the software just as you’re allowed to. This makes the MIT License very flexible.**Q: Is it necessary to include the MIT License in every file?**A: While it is not required to include the license in every file, it is a good practice. However, the terms of the MIT License only require that the license be included ‘in all copies or substantial portions of the Software.’**Q: What happens if I do not follow the MIT License terms?**A: If you do not follow the terms of the MIT License, this might lead to copyright infringement as you don’t have a legal right to use, modify, or distribute the software.

Related Tech Terms

  • Open Source Software
  • Copyright Notice
  • Software Distribution
  • License Permissions
  • Software Sub-licensing

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