Source code and license information

oTree is licensed under an open source license. The license, given below, is the MIT open source license with the added requirement of citation:


Copyright (c) 2014 Daniel Li Chen, Martin Walter Schonger, Chris Wickens.

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.

The licensee undertakes to mention the name oTree, the names of the licensors (Daniel L. Chen, Martin Schonger and Chris Wickens) and to cite the following article in all publications in which results of experiments conducted with the Software are published: Daniel L. Chen, Martin Schonger and Chris Wickens: "oTree - An Open-Source Platform for Laboratory, Online and Field Experiments", working paper available at: www.otree.org/oTree.pdf.


The source code is available on github.