Nice library and microframework (Webix Jet) for web apps design and development. Very useful on prove on concept or prototyping stage, when you need quick UI development with zero expenses. You can relax and focus on business logic and let Webix worried about UI material practices and responsive issues. Perfect support and documentation. Regular updates and new versions. Webix supported by mature software company for many years, so it save to put Webix in to your tech stack.
