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GOOGLE SHEETS AUDIT TOOL · DRIVE PICKER

A Google Sheets audit tool for the errors Sheets won't catch.

SaferSheets is a Google Sheets audit tool that finds broken formulas, hardcoded numbers, structural drift, and data-quality issues — the same things it finds in Excel, applied to native Google Sheets. Pick a sheet from Drive in two clicks; get a ranked list of issues in under a minute.

Audit a Google Sheet freeSee pricing →

Free tier — 30 audits/month — no card required.

Google Sheets is collaborative. That's also the problem.

Five people editing the same sheet means five sources of accidental changes. A column gets renamed and a VLOOKUP downstream stops working. Someone pastes a value over a formula "just to check something" and forgets to undo. A new tab gets added and a SUM that supposedly covers all tabs doesn't.

Google Sheets' built-in error indicators catch the visible problems (red triangles, broken refs). They don't catch the silent ones. A Google Sheets audit tool gives you the same systematic inspection that auditors run on Excel models, applied to native Sheets — without exporting to .xlsx first.

How the Sheets audit works

  1. 1

    1. Sign in with Google

    One click. SaferSheets requests read access to Drive so you can pick the Sheet you want to audit. We never list files you don't explicitly pick.

  2. 2

    2. Pick the Sheet from Drive

    Google's native Drive Picker — same one you use elsewhere. Pick the file, click Select.

  3. 3

    3. Audit runs through the Sheets API

    SaferSheets reads cells, formulas, and structure directly via the Google Sheets API. No download, no .xlsx export, no version-mismatch risk.

  4. 4

    4. Same eight audits as Excel

    Formula checks, data quality, hardcode detection, external link scan, structural analysis, hidden-sheet inventory, consistency checks, and an AI workbook summary.

Google Sheets issues the audit catches

Built on the same rules engine that powers the Excel audits — the underlying spreadsheet patterns are the same, only the wrapper differs.

  • Broken formulas

    #REF!, #DIV/0!, #N/A, #ERROR! cells listed by location with the originating formula. Plus the silent ones — VLOOKUPs returning the wrong column index because a column was inserted.

  • Hardcoded numbers in formulas

    =SUM(A1:A10) + 5000 in a Google Sheet is just as suspect as in Excel. The hardcode detector finds them with their cell address and the full formula syntax.

  • Mixed date and number formats

    Especially common in Sheets because multiple collaborators paste data from different sources. The audit surfaces every column with inconsistent formatting.

  • External references to other Sheets

    IMPORTRANGE formulas pointing at other files — listed with their target spreadsheet ID and whether SaferSheets can reach them (proxy for whether your collaborators can).

  • Hidden sheets and protected ranges

    Sheets the visible viewers won't see; ranges protected so only certain editors can change them. The audit lists both with the protection rules.

  • Volatile / heavy functions

    OFFSET, INDIRECT, IMPORTRANGE, GOOGLEFINANCE, ARRAYFORMULA chains — functions that slow down a sheet or hit Google's rate limits. Surfaced so you can decide whether they're necessary.

  • Tabs that disagree

    When two tabs both calculate Revenue from the same underlying data but produce different numbers — flagged by the consistency check.

  • Apps Script triggers

    If the Sheet has Apps Script triggers attached (onEdit, onChange, time-driven), the audit lists them so you know what code is running automatically.

Frequently asked questions

Does SaferSheets need write access to my Google Sheet?

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Only if you want to save a corrected copy back to Drive. The audit itself uses read-only scopes (drive.readonly + spreadsheets.readonly). When you choose to save a fixed-up file back to Drive, that uses the narrower drive.file scope — which only lets us write files we ourselves create, never modifying your originals.

Will it work on a Sheet that imports data from another source?

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Yes. IMPORTRANGE references are detected and listed as external links. IMPORTHTML, IMPORTXML, IMPORTDATA, and IMPORTFEED formulas are also recognized. The audit runs on the values currently in the sheet — refresh the imports first if you want the latest data audited.

Can it audit a Sheet I don't own?

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Yes, as long as you have at least viewer access. The Drive Picker shows everything you can see. SaferSheets reads through your account, so audit access mirrors your normal Sheets access — no special permissions needed from the sheet's owner.

Is the Google integration verified by Google?

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OAuth verification is in progress. While verification is pending, the Drive Picker and Save-to-Drive features are temporarily showing a "coming soon" state — sign-in itself uses only basic profile scopes (no Drive access), so there's no "unverified app" warning. Once Google approves the verification (typical timeline 4-6 weeks), the full integration unlocks automatically.

Does it work on Google Sheets that aren't in English?

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Yes. Cell content can be in any language. Formula function names follow Google's convention (English or localized) and SaferSheets recognizes both. Date and number formats are auto-detected.

Further reading

Deep-dives from the SaferSheets blog

Audit your next spreadsheet before you send it.

Free tier covers 30 audits a month. No card. Sign in with Google and you're running in under a minute.

Audit a Google Sheet free

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