DualView

Split and snap Chrome windows with one shortcut

If you resize browser windows by dragging them to screen edges every day—or open a second window just to compare two pages—DualView replaces that routine with one keyboard shortcut.

Split browser windows Magnet-style with shortcuts and open multiple windows in the same session.

Support

Overview

What DualView does

Magnet-style snapping in Chrome

DualView brings Magnet-style window snapping to Google Chrome—including on macOS, where the same muscle memory applies. Snap windows to 50% of the screen or split your workspace side by side without touching the mouse.

Default shortcuts — Windows / Linux

Split screen: Alt+Shift+1
Snap left 50%: Alt+Shift+2
Snap right 50%: Alt+Shift+3
Restore fullscreen: Alt+Shift+4

Default shortcuts — macOS

On Mac, manifest Alt maps to the Option (⌥) key. You can customize shortcuts anytime in the extension popup.

Split screen: Option(⌥)+Shift+1
Snap left 50%: Option(⌥)+Shift+2
Snap right 50%: Option(⌥)+Shift+3
Restore fullscreen: Option(⌥)+Shift+4

Split screen (Alt+Shift+1 · Mac: ⌥+Shift+1)

Snaps the current window to the left 50% and opens a new Chrome window with the same URL on the right 50%. Ideal for docs + reference, code + output, or any side-by-side workflow.

Snap left / right (Alt+Shift+2 / 3 · Mac: ⌥+Shift+2 / 3)

Resizes the active window to the left or right half of the current monitor.

Restore fullscreen (Alt+Shift+4 · Mac: ⌥+Shift+4)

Restores the pre-snap window size, or expands to the monitor workArea if no prior size was saved.

Customizable shortcuts

View and change shortcuts from the extension popup—no extra tabs required.

Multi-monitor support

Calculations use the monitor where the window is located, based on each display’s workArea (excluding taskbar/dock).

Shortcuts

At a glance

Four shortcuts cover everyday split-and-snap workflows:

Split screen — current window left 50%, duplicate URL in a new window on the right 50%
Snap left / right — resize the active window to half the screen
Restore — return to the previous size or fill the monitor work area
Customize — edit shortcuts from the popup

Users

Who it’s for

Developers & QA: Compare admin vs. user views, API docs vs. app UI
Researchers & analysts: Paper + notes, dashboard + spreadsheet side by side
Everyday work: Shopping comparison, translation + source page, tutorial + practice tab

Privacy

No data sent to external servers
No user data collected or stored
All window operations run locally via Chrome APIs

DualView exists for one job: fast window split and snap. Try Alt+Shift+1 (Mac: ⌥+Shift+1) once after install and feel the difference.

URL

Chrome Web Store URLs

Store listing

Visitors are redirected by country (KR/JP) or browser language to /dualview/en, /ko, or /ja.

Homepage URL: https://www.eajiai.com/dualview/
Support URL: https://www.eajiai.com/dualview/support
Privacy policy URL: https://www.eajiai.com/dualview/privacy