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You've Seen AI Excel Agents. Here's How to Build Your Own.

Excel has Agent Mode. Google Sheets has Gemini. They send your data to the cloud. Build a spreadsheet agent you own, running on your own infrastructure, with any LLM you pick.

Build a Spreadsheet App with Bolt.new and Jspreadsheet

Everything runs in the browser. No install, no terminal. Prompt Bolt.new and get a full Jspreadsheet Pro app with XLSX export, formulas, and a live preview.

Export Jspreadsheet to SPSS (.sav) files

A new extension that writes native SPSS system files straight from the browser or Node.js — with column types, value labels, and measure levels mapped automatically.

Best Spreadsheet Components for Business Applications in 2026

Five JavaScript spreadsheet components compared on price, formulas, Excel support, and bundle size. Jspreadsheet Pro, AG Grid, Handsontable, SpreadJS, and Syncfusion.

JavaScript Pivot Tables: Analyze Data Without Leaving Your App

Your users export to Excel just to build pivot tables. Keep that analysis inside your app with 12 aggregation functions and multi-level grouping.

What's New in Jspreadsheet 12.3

A proper time editor, collaboration controls that prevent duplicate writes, and smarter mobile dropdowns. Plus targeted fixes for frozen panes and formulas.

Build a Spreadsheet App with Lovable and Jspreadsheet

Loveable lets you transform a text into a functional web app. This guide shows you how to use it to build a spreadsheet application without having to write any code.