BORIS is a free and open-source software, and is released under the GNU General Public License.

The current version of BORIS is 6.2.4

Please acknowledge and cite the use of this software and its authors when results are used in publications or published elsewhere:

Friard, O. and Gamba, M. (2016), BORIS: a free, versatile open-source event-logging software for video/audio coding and live observations. Methods Ecol Evol, 7: 1325–1330.


If you find this software useful, please send me nice postcard of the place where do you live.


You can download small videos to test BORIS on your system:

Bug report and feature request

Bug report

Please report any bug (found in the latest BORIS version) using the GitHub repository or eventually by e-mail (in english, french or italian). Read the FAQ first to check if your problem is already fixed and remember to indicate your OS, your OS version, the BORIS version you are using.

Feature request

For suggestion and feature request please use the GitHub repository or eventually the discussion group

Previous versions

All previous versions of BORIS are available in the BORIS archive. Please note that the backward compatibility of a BORIS project is not guaranteed!


BORIS is developed entirely with open source software.

BORIS is developped in Python 3.6 using PyQt5 for the GUI.
The VLC Python binding is used to play media files.
The matplotlib is used for plotting events and generating the spectrogram.
The FFmpeg multimedia framework is used to extract media files parameters, in frame-by-frame mode and in spectrogram visualization.
The Tablib Python module is used to export data in TSV, CSV, ODS, XLSX, HTML and XLS formats.
The Graphviz graph visualization software is used (optionally) to generate transitions graph.