Bryntum is described as 'High performance web components for SaaS apps - including Gantt, Scheduler, Grid, Calendar and Kanban widgets. Seamless integration with React, Vue, Angular or plain JS apps' and is an app in the development category. There are five alternatives to Bryntum for a variety of platforms, including Web-based, Android, iPhone, Chrome OS and Android Tablet apps. The best Bryntum alternative is DHTMLX. It's not free, so if you're looking for a free alternative, you could try Dojo Toolkit. Other great apps like Bryntum are Ext JS, Webix UI and FancyGrid.