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.
Full text of GPLv3 License and quick guide you can see by the link below: GNU General Public License
This Free/Libre and Open Source Software (“FLOSS”) License Exception allows developers of FLOSS applications to use Webix in their FLOSS applications. Webix is licensed pursuant to version 3 of the General Public License (“GPL”). This exception permits distribution of Webix with a developer’s FLOSS application licensed under the terms of another FLOSS license listed below, despite the fact that not all FLOSS licenses are compatible with this version of GPL.