Dualless icon

Dualless

by Ben Lau · Tools
FeaturedManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Dualless - For those who don't have dual monitor.

Users
1M
0 in 30 days
Rating
3.5 / 5
−0.45 in 30 days
Ratings
274
+1 in 30 days
Store rank
#357
#335 among extensions
Version
0.4.1
updated 29 Dec 2023

Users

monthly, 3 years
100K1.1M2MAug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 1,000,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
80178277Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 274 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Dualless

Dualless is a poor man's dual monitor solution. It splits your browser windows into two by just 2 clicks. The ratio can be adjusted according to your needs.You may have a browser window showing on the right that occupy 30% of your screen. Then the rest of space leave to Google+. The extension simulates the environment of dual monitor. Utilize the space for 16:9 monitor Features * Split current browser window into a pair. And resize their position and size according to the ratio specified by user. (3:7,4:6,5:5,6:4,7:3) * Merge splitted browser windows back to a single window , or make it occupy the full screen area. * MacOS X like windows management. When one of the splitted windows got focused, the other in pair will be shown together. They always occupy the whole screen. * Press middle key on split window button will duplicate the current page on other window. * Bookmark management. Relaunch your favior site in a new tab and windows will be splitted in the recorded ratio. The software is released under open source license of GPL 2.0 Changes ====== Releaser 0.4.1 Date: 2023-12-29 * Bug Fix - crash browser during split / merge * Bug Fix - splitted window size is invalid * Changes: Migrated to Extension V3 API Release 0.4 * Added auto maximize mode * After splitted, if one of the window close, the remaining one will be maximized to occupy all the space * Added bookmark support Release 0.3 * Now works with maximized window! * Press middle key on split window button will duplicate the current page on other window. * Vertical split is supported. * Options page is added. User may enable/disable pairing mode(MacOS simulation) * Ubuntu with Unity works better now

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%+1−0.45
30 days0+0.0%+1−0.45
6 months0+0.0%−1−0.42
1 year0+0.0%0−0.42

Chrome Web Store search rankings

Where Dualless appears when people search the store, with the 30 day change
Search phrasePosition30 days
monitor#39−13
will#95−26

Version history

2 versions recorded
0.4.129 Dec 2023
0.424 Aug 2013

Details

Category
Tools
First seen
24 Aug 2013
Size
266 KB
Languages
en-GB
Pricing
Free
Support
github.com
Extension ID
bgdpkilkheacbboffppjgceiplijhfpd

Permissions and risk

Minimal riskimpact 2, likelihood 0
Permissions
tabsstorage

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