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AI functions in spreadsheet cells with any LLM: =PROMPT()

An AI function is a formula whose result comes from a model. It fills down, recalculates and feeds other formulas, on any LLM you run, hosted or local.

How to build a real-time collaborative spreadsheet backend

Ordering, structure edits, server-side formulas, persistence and reconnection: where the months go after the demo, and what Jspreadsheet Server covers.

Intrasheets 6: embed an Excel-like spreadsheet app in any page

One call puts an Excel-like spreadsheet application in any page: ribbon, formula bar, AI assistant and real-time collaboration on Jspreadsheet Server.

Self-hosted AI spreadsheet assistant on Jspreadsheet Server

A self-hosted AI assistant that reads the live spreadsheet and edits it with tools, under your authentication, quotas and usage hooks.

Connect Claude Code to your spreadsheets with an MCP server

Claude Code, Claude Desktop and your own agents read and edit live Jspreadsheet Server documents through the Model Context Protocol.

JavaScript Gantt chart inside a spreadsheet

A timeline bar on every worksheet row. Drag bars, draw dependencies and zoom the scale, with every change written back to the cells.

Formula Pro 7: JavaScript formula engine, 525 Excel functions

Spill ranges, unions, 3D references, functions as values and Excel argument validation, in the formula engine of Jspreadsheet v13.

Build a Spreadsheet App with Windsurf and Jspreadsheet

Windsurf's Cascade agent edits HTML, JS, and CSS in a single prompt. Build a Jspreadsheet Pro expense tracker with formulas, dropdowns, and date pickers.

ChatGPT for Excel vs. Building Your Own AI Spreadsheet

Microsoft's add-in sends your data to OpenAI. Here's how to build a private alternative with Jspreadsheet Pro and a local AI model running on Ollama.

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.