TREB: spreadsheets for web pages and web apps

TREB spreadsheets are easy to use, flexible, and free!

TREB is a full-featured, advanced spreadsheet that you can embed in your web pages and web apps.
TREB is open source and free; you can use it for any purpose, including commercial pruposes. See the download page for the more information.


Embed a spreadsheet with just one HTML tag, or use the NPM module with your favorite framework. Works in all modern browsers.


Customize colors, styles, and layout. Includes comprehensive number and date formatting.


Use the API to integrate spreadsheets with your web app to create interactive data models.

What is TREB?

TREB is the spreadsheet component written for and RiskAMP web. It's a full-featured spreadsheet, but it can be embedded in any web page to show data, highlight a calculation model, or support user input.

TREB has a complete library of spreadsheet functions, comprehensive style and formatting options, number and date formats, and more! It can read and write XLSX files so it works with any other spreadsheet.

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