PsychoPy 2021.1.1

pip install PsychoPy

Psychology experiment software in Python

Project Author:

Jonathan Peirce

Project Homepage:

Project Summary:

Psychology experiment software in Python

Project Description:

PsychoPy is an open-source package for creating experiments in behavioral science. It aims to provide a single package that is:

  • precise enough for psychophysics
  • easy enough for teaching
  • flexible enough for everything else
  • able to run experiments in a local Python script or online in JavaScript

To meet these goals PsychoPy provides a choice of interface - you can use a simple graphical user interface called Builder, or write your experiments in Python code. The entire application and library are written in Python and is platform independent.

There is a range of documentation at:


To contribute, please fork the repository, hack in a feature branch, and send a pull request. For more, see and the developers documentation at

More information

Learning Resources for PsychoPy
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