AIExcel
Free AI for Excel formulas, VBA and regex. No sign-up.
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AIExcel - Free AI for Excel formulas, VBA and regex. No sign-up.

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No sign-up, no usage cap, no paid tier — unlike every other AI Excel tool. What makes it different: • Tell it your Excel version (2016–365) and it won't suggest functions you can't run • Comma or semicolon separator — European Excel gets working formulas, not syntax errors • Regex built for RE2, the engine Excel and Sheets actually use • 336 function pages, each with syntax, 3 worked examples and its real error modes • Every answer names what will break it, not just the formula

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Hey Product Hunt 👋 I kept hitting the same wall: I'd need one Excel formula, search for a tool, and land on a sign-up form. Ten free messages a month, card on file, the usual. For a formula I needed in the next thirty seconds. So AIExcel has no account. Not a free tier with a login — no login at all. Type, get the formula, close the tab. Nothing is stored because there's nothing to store it against. Three things I went deeper on than I expected to: 1. Argument separators. European Excel uses semicolons, not commas. =SUM(A1,A2) is a syntax error in a German install. Most AI tools hand you a comma formula and let you find out. There's a toggle, and it guesses from your browser locale on first visit. 2. Excel versions. Tell it you're on 2019 and it won't suggest XLOOKUP — the ban list is generated from a dataset of 336 functions and their real availability, so it stays honest as the reference grows. 3. Regex. Excel and Sheets run RE2, which has no lookbehind and no backreferences. Most AI-written patterns are borrowed from Python and fail silently in a cell. This one targets RE2. There are also 336 function reference pages — syntax, three worked examples on one dataset, and the error codes that function actually throws. What it doesn't do: it can't see your spreadsheet. No uploads, no dashboards. You describe your columns; it writes the formula. And like every LLM tool it's sometimes confidently wrong, which is why every answer ends with what will break it. Check it against a row you already know. Free, no paid tier, not affiliated with Microsoft. Would love to know: what's the formula you've given up on and rewritten by hand three times? I'd like to test against real ones.