jsPsych is a JavaScript library for creating and running behavioral experiments in a web browser. jsPsych simplifies the process of coding browser-based experiments by providing a set of flexibile plugins that define different kinds of tasks a subject could complete during an experiment. By assembling different plugins together and customizing the parameters of each, it is possible to create many different types of experiments.

Documentation is available at docs.jspsych.org.

Contributions to the code are welcome. Please use the Issue tracker system to report bugs or discuss suggestions for new features and improvements. If you would like to contribute code, submit a Pull request.

For questions about using the library, please post to the jsPsych e-mail list. This creates a publically available archive of questions and solutions.

jsPsych was created by Josh de Leeuw (@jodeleeu) at Indiana University.

If you use this library in academic work, please cite the paper that describes jsPsych

de Leeuw, J.R. (2015). jsPsych: A JavaScript library for creating behavioral experiments in a Web browser. Behavior Research Methods, 47(1), 1-12. doi:10.3758/s13428-014-0458-y