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Formula Generator

ExcelFree · Private

Describe what you want in plain English and get the correct Excel/Google Sheets formula, generated by a local AI model. Runs entirely in your browser.

Nothing is uploaded — all processing happens on your device. No spreadsheet data, formulas, or descriptions are ever sent to a server — everything runs entirely in this browser tab.

Ask AI for a Formula

Describe the formula you need in plain English — try one of these, or type your own below.

Common patterns answer instantly · anything else uses a small on-device model, clearly marked unverified

How to use it

  1. Describe what you want in plain English — mention the column letters or names if you know them.
  2. Click Generate Formula. A small local AI model writes the formula and a one-line explanation.
  3. Copy it into your spreadsheet — always test on a copy of your data first.

Why you still need to check it

The model runs entirely on your device, which means it's a small model — good at common formulas (SUM, COUNTIF, IF, VLOOKUP, and similar), but it can make mistakes on unusual or very complex requests. That's why every formula comes with a plain-English explanation of what it does, so you can compare it against what you actually meant before trusting it.

Privacy

Only the text you type is processed, entirely inside your browser. Nothing is uploaded, and this tool has no connection to your actual spreadsheet file or its data.

Frequently Asked Questions

How does this generate formulas?
A small local AI model (the same one used by the Grammar Fixer and other tools on this site) converts your plain-English description into Excel formula syntax, entirely on-device.
Does it work for Google Sheets too?
Most generated formulas (SUM, COUNTIF, VLOOKUP, IF, etc.) use standard syntax that works in both Excel and Google Sheets. A few Excel-only functions may need small adjustments for Sheets.
Should I trust the formula without checking it?
Always test it on a copy of your data first. Small on-device models are good at common formulas but can make mistakes on very complex or unusual requests — that's also why every formula comes with a plain-English explanation, so you can verify it matches what you meant.
Is my data uploaded anywhere?
No — only your typed description is processed, entirely in your browser. Nothing is sent to a server.

Related Tools

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Formula Explainer

Paste any Excel or Google Sheets formula and get a step-by-step plain-English explanation, generated by a local AI model. Nothing is uploaded.

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Messy Data Cleaner

Paste messy tabular data and get consistent values, sensible headers, and duplicate-row flags — reviewed in a before/after preview, exported as .xlsx. Nothing uploaded.