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About PsychoPy

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PsychoPy is an open-source application allowing you run a wide range of neuroscience, psychology and psychophysics experiments. It’s a free, powerful alternative to Presentation™ or e-Prime™, written in Python (a free alternative to Matlab™ ).

PsychoPy is unique in giving you a choice of interface: use the Builder interface to build rich, flexible experiments easily or use the Coder interface to write extremely powerful experiments in the widely-used Python programming language. The best of both worlds!


Workshops: This year we’ll be running three PsychoPy official workshops :

Latest version: 1.84.2 was released Sept 2016, with new Projects menu for syncing with Also various bug fixes and updated standalone packages. See the full Changelog

We’ve got a new forum: To discuss anything PsychoPy (features, bugs, tips or announcements) go to the new PsychoPy forum Many thanks to the good people at for creating such lovely software and hosting it for us!