Free Excel formula checker
Find formula errors and inconsistent Excel formulas
Check every populated formula cell for error values, volatile functions, external workbook references and formula patterns that differ unexpectedly from the rest of a column.
- Checks every worksheet
- Highlights inconsistent patterns
- Runs locally in your browser
Private browser processing
Your workbook never leaves this device. No file is uploaded, stored or sent to our server.
This free workbook audit is an automated structural check, not an assurance that calculations or business decisions are correct. Keep an untouched backup of every workbook.