SheetBrain
Your spreadsheet has bugs. SheetBrain finds them.
SheetBrain is a Google Sheets add-on that finds the bugs your eyes miss: broken references, mixed data types, duplicate lookup keys, and schema drift when columns move or get renamed. It runs a deterministic scan in one click — free, unlimited, no AI call needed. It also generates formulas from plain English. $9/mo Pro tier, AI included, no API keys. Works on free Gmail.
Features
- One-click deterministic health scan (free, unlimited, no AI call)
- Detects broken refs, mixed types, duplicate keys, schema drift
- =SHEETBRAIN_HEALTH() custom function for in-cell health scoring
- Shareable public audit reports (30-day link, no login for viewers)
- Plain-English formula generator that reads your real sheet structure
- AI included in price — no BYO API key, no token fees
- Works on free Gmail (no paid Google Workspace required)
Use Cases
- Finance/ops analysts cleaning quarterly reports before presenting to leadership
- Freelancers auditing client sheets before handing them back
- Founders checking investor-facing models for broken references and mixed types
- Data teams validating spreadsheets that feed into downstream dashboards
- Anyone generating new formulas without ChatGPT tab-switching
Comments
SheetBrain solves a real problem that spreadsheet-heavy teams face daily — silent data errors that skew decisions. The broken reference detection is particularly useful for finance and ops teams managing complex models. Curious whether it handles pivot table validation too? For Amazon sellers managing P&L in sheets, this kind of tool would be a lifesaver before they graduate to dedicated analytics platforms.
Hey Fazier 👋 I built SheetBrain because I kept spending hours every quarter hunting down why my spreadsheet totals were off — and finding stupid bugs: a mixed-type column where half the "numbers" were strings, a #REF! nobody noticed, a VLOOKUP pointing at the wrong column after someone renamed a header. SheetBrain runs one deterministic scan across your sheet and flags all of that — free, unlimited, no AI quota, no API key. Just type =SHEETBRAIN_HEALTH() in any cell. AI formula generation is in there too for the $9/mo Pro tier — no BYO API key, no token fees, works on free Gmail. Happy to answer questions or debug a sheet if you want to throw one at me.
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Comments
SheetBrain solves a real problem that spreadsheet-heavy teams face daily — silent data errors that skew decisions. The broken reference detection is particularly useful for finance and ops teams managing complex models. Curious whether it handles pivot table validation too? For Amazon sellers managing P&L in sheets, this kind of tool would be a lifesaver before they graduate to dedicated analytics platforms.
Hey Fazier 👋 I built SheetBrain because I kept spending hours every quarter hunting down why my spreadsheet totals were off — and finding stupid bugs: a mixed-type column where half the "numbers" were strings, a #REF! nobody noticed, a VLOOKUP pointing at the wrong column after someone renamed a header. SheetBrain runs one deterministic scan across your sheet and flags all of that — free, unlimited, no AI quota, no API key. Just type =SHEETBRAIN_HEALTH() in any cell. AI formula generation is in there too for the $9/mo Pro tier — no BYO API key, no token fees, works on free Gmail. Happy to answer questions or debug a sheet if you want to throw one at me.
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