Ernesto Garbarino
Widget Libraries
Widget Libraries provide rich display and control components (e.g. tree controls) that are not necessarily bundled with general SPA frameworks such as Angular or React.
Kendo UI: Kendo UI is one of the most advanced commercial widget libraries and includes desktop-grade components such as calendar pickers, editable grids and so on. It supports a variety of frameworks and server-side programming languages such as C# and PHP. On the client side its recent focus has been on native Angular support.
Webix: Webix is similar to Kendo UI in terms of capabilities but it differentiates itself by providing better documentation and focusing exclusively on the client-side as opposed to server-side binding.
Zino UI: ZinoUI is a jQuery-based web widget library that contains over 25 components. It has a GPL3 licence for open source projects and an affordable donation-based alternative for commercial projects. It is less ambitious in capabilities than Kendo UI.
Chart.js: Chart.js is a charting library that includes most usual Excel-esque chart types such as bar, line, area, scatter, pie, radar, etc.