SheetDiff™
Compare, Diff & QA
SheetDiff™ is a schema-agnostic Google Sheets™ add-on built for spreadsheet comparison and quality assurance. It compares two versions of any structured data — the original and the reworked — and produces a detailed, row-level diff report.
Structural Diff
Row-level comparison with advanced algorithms to detect splits and merges across your data rows.
Cell-by-Cell
Column-aligned granular comparison for pinpointing exact character or formatting changes.
Duplicate Finder
Scan massive datasets instantly to detect and highlight duplicate rows within a single sheet.
How It Works
Open any spreadsheet in Google Sheets™
The add-on auto-detects column roles (speaker, timestamps, transcript, sound events)
Commit a snapshot of the original data
Make edits or import the reworked version
Run the diff — every row is categorized and color-coded
Diff Categories
- Unchanged — identical rows between versions
- Modified — rows with text or timing changes
- Split — one original row split into multiple
- Merged — multiple original rows merged into one
- Added — new rows in the reworked version+
- Deleted — rows removed from the original-
Key Features
- Schema-agnostic — works with any column layout
- Auto-detect column roles via flexible header pattern matching
- Color-coded Diff Viewer sheet
- Summary QA Report with per-category counts and WER/CER/SER metrics
- Configurable similarity threshold
- Multi-script normalization (Arabic, Cyrillic, CJK, Thai, Devanagari, Bengali)
- Optional reviewer and transcriptionist metadata
- Settings sidebar for full control
Pricing
See full details on the Pricing page.
Your spreadsheet data stays in Google Sheets™ — it is never transmitted to external servers. The only data sent to our license server is your Google account email, solely for license verification and usage tracking. Payments are handled by Dodo Payments (Merchant of Record). No cell content, row data, or file contents ever leave Google’s infrastructure.
Get in Touch
Google Sheets™ and Google Drive™ are trademarks of Google LLC.