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Sheet Formula Debugger

Paste any Excel or Google Sheets formula to see its structure broken down step-by-step in a tree view. Identify function hierarchy, extract cell references, detect mismatched parentheses, and understand complex nested formulas at a glance.

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Debug Output
Click "Debug Formula" to analyse...
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How to use Sheet Formula Debugger

  1. Paste your Excel or Google Sheets formula (starting with =) into the text area above.
  2. Click the Debug Formula button to parse and break down the formula structure.
  3. Review the tree view showing function hierarchy, arguments, cell references, and any errors.
  4. Use the sample dropdown to load predefined formulas and see how different structures are parsed.

What is Sheet Formula Debugger?

The Sheet Formula Debugger parses any Excel or Google Sheets formula and displays its structure in a clear, indented tree view. It highlights each function by category (logical, math, lookup, text, date, and more), lists arguments with their resolved types, extracts all cell references and ranges, and flags mismatched parentheses or unrecognized functions.

This tool is invaluable for spreadsheet users troubleshooting complex formulas, students learning how nested functions work, and professionals auditing financial models or data pipelines. It handles IF, VLOOKUP, SUMIFS, INDEX/MATCH, nested AND/OR conditions, array formulas, and any combination of built-in functions.

All parsing happens entirely in your browser — no formula data is sent to any server, ensuring complete privacy for sensitive spreadsheets.

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FAQ

Does this tool support nested functions?
Yes — the debugger recursively parses nested functions and displays them as indented child nodes. An IF inside a SUM inside a VLOOKUP is fully decomposed.
How does it handle cell references like A1 or ranges like B2:B10?
Cell references, ranges (A1:B10), and named ranges are automatically detected and displayed in a distinct color at the top of the debug output. References with sheet prefixes (Sheet1!A1) are also supported.
What happens if my formula has mismatched parentheses?
The debugger validates parentheses before parsing and reports every unmatched opening or unexpected closing parenthesis with its exact position.
Are my formulas sent to a server?
No. All parsing is done entirely in your browser using client-side JavaScript. Your formulas never leave your device.

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