Hey PH 👋 We built SheetBrain because we kept watching smart people ship broken spreadsheets. The bug that set this off: a finance team we consulted for sent a board deck where one VLOOKUP quietly returned the wrong manager's email for 40% of the roster. Nobody caught it. The column had been renamed six months earlier and nothing flagged the drift. That spreadsheet had been reviewed, shared, approved — and it was wrong. Every other "AI for Sheets" tool is a formula generator. Useful, but it's the wrong layer. The thing that actually ships bad decisions is the stuff already in your sheet that nobody notices: #REF! hiding in row 847, mixed "15,000" / "$15K" / "15000 INR" in the same column, duplicate lookup keys, formulas pointing at columns that moved three sprints ago. SheetBrain runs a one-click deterministic scan — NOT an LLM guess — and surfaces those four categories. Free, unlimited, no API key, no prompt to engineer. Type =SHEETBRAIN_HEALTH() in any cell and you get a score in 3 seconds. Also generates formulas from plain English (it's the bonus feature, not the lead). All AI is bundled — you don't bring your own OpenAI/Anthropic key, we eat the cost at $9/mo for 1,000 calls. Live on Google Workspace Marketplace. Free tier has no time limit. Would love honest roasting on: Is "spreadsheet health" the right frame, or should we just say "bug finder"? What error category did we miss? Thank you 🙏 — SheetBrain Team

SheetBrain

Your spreadsheet has bugs. SheetBrain finds them.

Your spreadsheet has bugs. SheetBrain finds them.