How healthy is your spreadsheet?

Know your model's grade before they do.

Upload an .xlsx workbook and get an instant Health Score — every broken reference, silent copy-paste error, and fragile lookup, found in seconds.

Analyzing…

Analyzed in isolation. Deleted within minutes. Never used for training. — how it works

or see a sample report →

Sample report Acme Industries — DCF model 5 critical 126 warnings 8 info Explore every finding →

What we check

13 static checks over your formulas' text — the workbook is never opened in Excel, never executed.

error_values

Failed results and pasted-over errors, poisoning every formula downstream.

inconsistent_formulas heuristic

The one formula in a row that doesn't match its neighbours.

fragile_lookups heuristic

Lookups returning plausible wrong answers without ever showing an error.

hardcoded_constants heuristic

Business numbers buried in formulas where nobody can update them.

circular_refs

Formulas feeding their own inputs — iterative models flagged honestly.

external_links

Values from other workbooks that freeze or break when files move.

+ 7 more checks: broken_refs hidden_data merged_cells complex_formulas named_ranges numbers_as_text volatile_functions

Why it matters

9 in 10

real-world spreadsheets contain errors, across published field audits

R. Panko, “What We Know About Spreadsheet Errors” (rev. 2008)

$6.2B

the “London Whale” loss — JPMorgan's task force found its risk model ran on manual Excel copy-paste

JPMorgan Chase Management Task Force, January 2013

$24M

lost to a single cut-and-paste error in a bid spreadsheet

TransAlta Corp., June 2003

How it works

  1. Upload

    Drop any .xlsx up to 20 MB. No account needed for your first audit.

  2. Analyzed in an isolated sandbox

    Your workbook is read, never executed: formulas are analyzed as text, macros and code are never run. The file is deleted immediately after analysis. Never used for training.

  3. Instant score and fixes

    A 0–100 Health Score, every finding grouped and explained, an AI summary on request — and paste-ready corrections with Pro.

Analyzed in isolation. Deleted within minutes. Never used for training. — how it works

Pricing

Anonymous

Try it right now

$0

1 audit a day · full findings · share card

Run an audit

Free account

For the occasional check

$0

5 audits a month · 5 AI summaries · 3 saved reports

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Pro

Built for daily work

$25/mo or $240/yr — 2 months free

100 audits a day · 150 AI summaries a month · version compare · fix pack · white-label PDF

Coming soon

Full pricing details →