The source code in crispor.py and crisporEffScores.py ("the code") is under copyright by Maximilian Haeussler maximilianh@gmail.com ("the author"). Anyone can use the website for free. There are no restrictions on web usage. Website By using the website, you agree that the website stores the input sequences and the genome identifier for at least 24 months. This is done for users' conveniences, so the CRISPOR result output URL is valid for 24 months. CRISPOR does not have a user account login and has no way of knowing the name or other identity of its users. Download and local execution of the crispor.py program Up to and including version 3.1, the source code files crisporEffScores.py and crispor.py were licensed under GPLv3. See http://www.gnu.org/licenses/gpl-3.0.en.html Starting with version 4, the file crispor.py can be used freely only by academic researchers. Since version 4, commercial and non-profit organisations need to contact the author to obtain a license to run the file crispor.py or crisporEffScores.py on their own computer. Most non-profit organisations will be able to obtain a license at no cost. A license for commercial users includes support from the author and regular updates. If you think these license terms make distribution of the code difficult, please do not hesitate to contact the author. -- Code in bin/ is under the license of the respective authors and only provided as part of this package for installation convenience. Please see the directories under bin/src for the exact licenses.