Chat with your Excel
100% in your browser

Your file never leaves your device. No sign-up. No upload. AI-powered data analysis with charts.

🔒 No upload 🧠 Browser AI (Llama 3) 📊 Charts included 🆓 Free, no sign-up
📊
Drop your Excel or CSV here or click to browse

Also available as a free REST API (edge-processed, zero retention): toolsthatdontupload.com/api

data.xlsx
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How It Works

Three simple steps. Everything happens on your device.

1

Drop Your File

Drag and drop an Excel or CSV file up to 50 MB. It stays on your device the entire time.

2

AI Reads It Locally

SheetJS parses the spreadsheet. The AI model (Llama 3 via WebGPU) runs directly in your browser.

3

Chat & Analyze

Ask questions about your data. Get insights, statistics, and charts powered by AI.

🟢 Browser AI

Llama 3.1 8B / 3.2 3B / 1B via WebGPU. File never leaves your device. Needs GPU with 4-6 GB VRAM.

🔵 Your API Key

Bring your own OpenAI or Anthropic key. Only extracted text sent to the API you chose, directly from your browser.

🟡 Text Search

No AI needed. Searches your spreadsheet by keyword. Works everywhere.

Verify It Yourself

Don't trust us? Check it yourself in 10 seconds.

1

Open DevTools

Press F12 or Ctrl+Shift+I in your browser.

2

Go to Network Tab

Filter by "Fetch/XHR" or search for POST requests.

3

Drop a File & Chat

Zero file-upload requests. Your data stays 100% local.

FAQ

Is my Excel file uploaded to a server?
No. Your file is processed entirely in your browser using SheetJS. The file never leaves your device.
What AI model is used?
WebGPU-capable browsers use Llama 3.1 8B or 3.2 3B locally. Otherwise, use your own API key or text search.
What file formats are supported?
Excel (.xlsx, .xls, .xlsm) and CSV/TSV files up to 50 MB.
Can it create charts?
Yes. Ask the AI to visualize data and it renders bar, line, or pie charts using Chart.js.
Is this really free?
Yes, completely free. Browser AI uses your GPU. API mode uses your own credits.