CommentPulse is a browser-based tool that extracts every comment thread from a Google Sheets workbook and presents them as a sortable, filterable list showing the tab, cell, each reply, and whether a thread is marked resolved. Use it by downloading the sheet as an .xlsx and dropping the file onto the page; files are unzipped and read locally with no upload, account, or server involved. Filters include tab, person, and status; sorting options include tab/cell and newest/oldest activity; results can be exported as CSV or copied as Markdown. There is also an add-on that performs the same extraction directly inside Google Sheets without the download step.
The tool works on Excel workbooks too but does not support Docs or Slides. Important limitations: resolution is exported only as a boolean so timestamps and resolver identity are unavailable; deleted comments, emoji reactions, and email addresses are not present (only display names). Times shown are converted to the user’s local timezone while CSV exports use UTC. Source code is available under an MIT license on GitHub, with a test suite provided. Files are processed client-side only and are discarded when the tab is closed.
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