Tab Deduper

Name: Tab Deduper
Rating: 4.2272727272727275 (22 reviews)
Author: Trevor Siemens

By: Trevor Siemens

An extension that allows the user to deduplicate tabs.

Download

Features & Capabilities

Tab Deduper is a powerful Chrome extension designed to help you find and manage duplicate browser tabs efficiently. Unlike other tab deduplication tools, it does not automatically close duplicates; instead, it presents you with a list to choose which tabs to close, giving you full control.

This extension offers advanced comparison settings allowing you to use text or regular expressions to match tabs based on URL, title, or even transformed URLs through regex replacements. This flexibility makes it especially useful if you use other extensions that alter tab URLs. Tab Deduper is an essential tool for anyone looking to keep their browser organized and clutter-free without losing control over open tabs.

User Growth & Download Statistics

Extension

By:

Users:

Rating:

Version:

1.2.3 Last updated: 2025-09-28

Creation date:

2018-07-18

Risk:

Permissions:

Size:

18.86KB

Email:

tr*****@protonmail.com

Full description:

Source:

Chrome Web Store

Data ingested on:

2026-06-03

Compare stats and ranking:

Ranking

# 14,254 ▲ 112

Other rankings

#5835 in Workflow & Planning ▲ 2

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Chrome extension. Please use these information below to contact the Chrome extension developer.

Developed by:

Trevor Siemens

Chrome Web Store

https://chromewebstore.google.com/detail/tab-deduper/fpcohiaaphpfoneofdlabjnpipbnkplj

Email:

tr*****@protonmail.com

User Reviews

Tab Deduper is praised for reliably detecting duplicates, offering non-destructive user control, and providing clear, color-coded visuals to locate duplicates across windows. Its regex customization and clean, focused UI are frequently highlighted. However, several reviewers report stability issues (crashes with many tabs), occasional glitches in display, and mixed results with multi-window use. The extension’s effectiveness is generally strong but can vary by use case and workload.

Pros

Accurate detection and listing of duplicate tabs across windows (core feature).
User control over duplicates: you can review and close selectively rather than auto-removing duplicates.
Clear visual cues with color coding by window to help identify where duplicates live.
Regex-based customization to refine what counts as a duplicate (e.g., URL transforms, handling Google Docs).
Clean, focused UI that keeps tab deduping as a single-purpose tool and enables easy navigation to duplicates.

Cons

Occasional glitches where duplicates don’t display until refreshing or toggling visibility.
Crashes or instability when there are many tabs/windows open.
Inconsistent cross-window behavior: some users report it works across windows while others see reliability issues.
UI can briefly show duplicate entries that don’t correspond to real tabs in some cases.
Accuracy in detecting duplicates can vary and may not catch all duplicates in every scenario.

Recent reviews

Have used this extension off and on for a few years. It's currently non-functional in Brave (as others have said, it show nothing or just the header). Uninstalling and will roll my own extension.

Sh*****, 2026-05-06

It seems to (??? no proof) find duplicate tabs. OK. Then what? It displays them in a long vertical list using all sorts of colors painting a tiny bar to the left of them. No "select". No "remove dups". No nothing, no sense. Much effort with zero functionality and zero effect.

Vl*****, 2025-11-22

Generally does what one would expect but occasionally glitches and does not show anything. Have to click off and click on again and then the dups show. Also, would be nice to have an option to ignore "New Tab" -- I tend to have a lot of these because Chrome creates a new tab automatically when a window contains only collapsed Tab Groups. The other feature I would like is for the tab list to show the window name the tab is contained in, if the window is assigned a name. I name all my Chrome Windows using the "Name Window" feature so I can navigate to them easily, so this feature would be very nice.

Ra*****, 2025-08-20

View all user reviews ›

Is Tab Deduper Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Tab Deduper requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.

Risk likelihood

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension.

Tab Deduper has earned a good reputation and can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* ** ****** ** ********
Good **** ********* *** **** **** *******