We support free software and publicly provide you two types of Webix license:
If you want to try Webix we have Webix Trial Developer License, that allows you to use Webix for evaluation purposes. Trial period is 30 days. Please note that you can not develop a programe under GPLv3 and later convert to a commercial license.
To look at License F.A.Q. please follow this link: License F.A.Q.
The full text of GPLv3 License and a quick guide can be seen by the link below: GNU General Public License
For more information about Free/Libre and Open Source Software (FLOSS) License you can visit our Exception page: License Exception
Webix developer license agreement is posted below.