Close Duplicate Tabs

Detect and close duplicate tabs across all windows. Visual preview, smart keep strategies, undo, live mode, and URL rule matching.

Close Duplicate Tabs Clean up duplicate tabs instantly — across all windows, with full control over what gets closed. How it works Click the extension icon to open a live preview of all duplicate groups. Review which tabs will be kept, close individual duplicates or entire groups, then undo if needed. Features Visual popup — see duplicates grouped by URL before closing anything One-click close all, or close group by group Undo — reopen tabs you just closed Smart keep strategy — keep the most recently accessed, oldest, newest, pinned, or current-window tab Ignore query parameters — treat example.com?a=1 and example.com?b=2 as the same tab using URL prefix rules Exclusion list — skip domains you never want deduplicated Live Mode — automatically redirect duplicate tabs to the existing one as you browse Auto-close mode — silently close duplicates in the background Works across all windows, or limit to current window only Badge shows duplicate count at a glance No data collection. No external services.