Compare Google Sheets™ and remove duplicates — quickly and clearly
SheetDiff is a Google Workspace™ add-on that compares two Google Sheets™ and removes duplicate rows. Select two sheets (or ranges), and SheetDiff highlights the differences row-by-row using color-coded cells — green for additions, red for deletions, yellow for changes. Supports row-level, column-level, and cell-level comparison. The remove duplicates feature lets you clean up merged or redundant data in one click.
Use cases: reconciling data exports, comparing weekly reports, deduplicating contact lists, auditing spreadsheet changes.
SheetDiff は Google Workspace™ アドオンです。2 つの Google スプレッドシート™を比較し、重複行を削除します。2 つのシート（または範囲）を選択するだけで、違いを行単位で色分け表示します。追加行は緑、削除行は赤、変更行は黄色でハイライト。行単位・列単位・セル単位の比較に対応しています。重複削除機能を使えば、結合データや重複データをワンクリックで整理できます。
データエクスポートの突合、週次レポートの比較、コンタクトリストの重複除去、スプレッドシートの変更監査などにご利用いただけます。
SheetDiff accesses the following data to perform its core function (sheet comparison and deduplication):
| Data Accessed | How It Is Used |
|---|---|
| Google Sheets™ data (active sheet + user-selected ranges) | Reads sheet data to perform row/cell comparison and identify duplicates |
| Google Sheets™ metadata | Reads sheet names, row/column count, and other structural information |
| Google Sheets™ formatting (optional) | Writes comparison results (color highlights) to the output sheet |
| Email address | Used only for Stripe customer identification when subscribing |
Full details: Privacy Policy | Terms of Service
Available on Google Workspace™ Marketplace. Install the add-on from the Marketplace listing, then open any Google Sheet™ and click Extensions > SheetDiff > Open SheetDiff to get started.
Free trial available. Monthly and yearly subscription plans available via Stripe.
| Monthly | Yearly | |
|---|---|---|
| Price | ¥100/month | ¥1,000/year (¥83/month) |
Contact: jinxiao777+sheetdiff@gmail.com