Verify any formula against real data.
Paste a formula. Edit the sample grid to look like your sheet. We run it through a real spreadsheet engine — HyperFormula — and show you the computed result, or the exact error it returns.
Try it with your data
Edit the grid or formula, then run it through a real spreadsheet engine — no signup.
Sample data — click any cell to edit
Runs server-side · free · no signup
Need help writing the formula?
Describe what you want in plain English; the Workspace generates a paste-ready formula and explains it.
Got a whole spreadsheet to check?
The Auditor scans every formula in a .xlsx and flags the broken ones. Apply suggested fixes back to the file with one click.
We never store your formula or sample data. Verification is computed server-side and discarded when the request returns.