DualView

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

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. 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 macOS Split screen: Option(⌥)+Shift+1 Snap left 50%: Option(⌥)+Shift+2 Snap right 50%: Option(⌥)+Shift+3 Restore fullscreen: Option(⌥)+Shift+4 On Mac, manifest Alt maps to the Option (⌥) key. You can customize shortcuts anytime in the extension popup. What DualView does 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). 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.