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 |TM| or e-Prime |TM|, written in Python (a free alternative to Matlab |TM| ).

PsychoPy provides a unique 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!

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News
====================

**Latest version**: 3.0.0 beta (multiple versions) released July 2018

See the launch video at https://www.youtube.com/watch?v=bprYeBzkUc8 to get more info.

Supporting online studies and announcing our own experiment server at Pavlovia.org


**Buy the official book!**

You can now :red:`buy the book`, `Building Experiments in PsychoPy <https://uk.sagepub.com/en-gb/eur/building-experiments-in-psychopy/book253480#reviews>`_ from Sage Publishing!

300 pages of great advice on how to create better experiments with a combination of Builder and some code snippets! Suitable for a wide range of audiences, with separate sections for:

  - beginners (suitable for undergraduate teaching)
  - professionals (more technical detail for the afficionado)
  - and specialists (with particular use cases like EEG, fMRI, psychophysics).

See the full :doc:`changelog`


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Contents
====================
.. toctree::
   :maxdepth: 1

   About PsychoPy (features, screenshots etc.) <about/index>
   * Documentation * <documentation>
   api/api
   changelog
   resources/resources

Please remember to :ref:`cite PsychoPy <citingPsychoPy>`

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