Tool Builder

Build custom interactive web tools that run right inside your Excel spreadsheet—no coding skills required. Just describe what you need to an AI assistant, paste the generated code, and you have a working web tool in seconds.

Need an expense tracker? A project dashboard? A data entry form tailored to your workflow? Tool Builder makes it possible without leaving your workbook.

How It Works

Tool Builder includes a ready-made prompt you can copy into ChatGPT, Claude, Copilot, or any AI assistant. Describe the web tool you want in plain language, and the AI generates it for you. Preview it instantly in the AI chat, then paste it into Excel to connect it to your live data.

What You Can Build

💲 Expense & Budget Trackers — Log spending, categorize transactions, and view summaries at a glance.

📋 Task & Project Boards — Kanban boards, to-do lists, and workflow trackers that store everything in your workbook.

📊 Dashboards & Reports — Interactive charts, KPI scorecards, and performance metrics powered by your spreadsheet data.

📦 Inventory & Stock Management — Track stock levels, flag low inventory, and manage reorders.

⏱️ Time Tracking & Logs — Start/stop timers to log hours by project or client.

📝 Custom Data Entry Forms — Guided input forms that write directly to Excel tables, reducing errors and speeding up data collection.

Key Features

🤖 AI-Powered — No Coding Required — Copy the built-in prompt, tell the AI what you want, and get a ready-to-run web tool. You don't need to write a single line of code.

📊 Connected to Your Data — Web tools read and write to Excel tables in real time. When you edit a cell, your web tool updates automatically.

📦 Everything Stays in Your Workbook — Web tools are saved inside the Excel file itself. Share the workbook, and the recipient gets your web tools too—no setup, no accounts, no external services.

🔒 Secure by Design — Web tools run in a protected sandbox that cannot access anything outside the workbook.

🔄 Version History — Every save is versioned. Restore a previous version with one click if you need to go back.

⚡ Smart Error Handling — If something goes wrong, you see the error alongside your code so you can describe the issue to AI and get a fix.

Getting Started

1. Insert Tool Builder into your worksheet.

2. Load a built-in example or copy the prompt to an AI assistant and describe the web tool you want.

3. Paste the code and run—your web tool is saved in the workbook and loads automatically next time you open it.

See our Tool Builder documentation for tutorials and examples.