TidySheet fixes messy data — duplicates, stray spaces, mixed date formats, currency junk — instantly, right inside Excel. Plus an AI copilot that answers questions, writes formulas, and categorizes columns for you.
This demo runs entirely in your browser. Nothing is uploaded. (The Excel add-in does the same, on your selection.)
or click to choose · use a messy sample
One-click cleaning is free and unlimited. The AI copilot turns hours of grunt work into seconds.
Trim spaces, drop empty rows/columns, remove duplicates, tidy headers — in one click.
Auto-detects mixed date formats → YYYY-MM-DD and strips $ , % from numbers.
"Which region grew fastest?" — get answers from the selected range in plain English.
Describe what you want; TidySheet writes the Excel formula and drops it into the active cell.
Label a column into your categories, or pull a field out of messy text — into a new column.
Built on one shared engine, so Google Sheets support is an adapter — not a rewrite.
Most "AI for spreadsheets" tools ship your data to a SaaS black box. TidySheet is built so your data path is something you can actually see — and, when self-hosted, control.
Cleaning is free forever. Pay only when the AI saves you real time.
Annual plan = 2 months free. Prices are configurable by the operator.
Available as a sideload today; AppSource listing in progress.
manifest.xml.manifest.xml into ~/Library/Containers/com.microsoft.Excel/Data/Documents/wef/, restart Excel, Insert → My Add-ins.Full setup (HTTPS deploy + AI proxy) is in DEPLOY.md.
No — cleaning runs entirely on your device. Only the AI features send the cells you selected, and only to the self-hosted proxy and Anthropic. See the Privacy Policy.
Cleaning needs nothing. AI features use the operator's proxy, which holds the key server-side — it never reaches the add-in.
Excel ships first. The cleaning/AI engine is platform-agnostic, so Sheets support is a thin adapter on the same core.
Yes. Pro is month-to-month and cancels at the end of the period. Lifetime is a one-time purchase.
No spam. Just the AppSource launch and early-access perks.