Handsontable

It is a drop-in javascript spreadsheet library that provides rich features like Excel and Google Sheets. The goal of FortuneSheet is to make a feature-rich, easy-to-configure online spreadsheet that you can use out-of-the-box.

ZingGrid is an interactive, mobile-friendly JavaScript library for data grids and tables with lots of built-in features and tons of out-of-the-box functionality.

It is the new grid on the block™! Written in Javascript ES6 and built with performance & usability in mind. It is the performant data grid that just works.