Kinovea is free and open source software. As a general rule, you can run, study, copy and modify it, provided you publish your modifications if any.
Its building blocks are subject to various licenses according to the following scheme :
The source code for Kinovea is subject to the GNU GPL (General Public License) version 2.
Kinovea embeds external libraries that may be subject to other licenses :
Icons, graphics (including the Kinovea logo), users manuals and help videos are all subject to the Creative Commons Attribution-Share Alike 3.0.
Some icons are coming from the Silk Icon Set (famfamfam).