Window Snapping

• Edge snapping — drag a window to screen edges for quick half-screen or full-screen positioning.
• Area snapping — drag a tab over any grid zone to snap it into place, no need to aim for screen edges. Hold Option while dragging a window to activate area snapping on demand.
• Top edge maximizes — dragging to the top edge maximizes the window regardless of layout.

Snap Guides

• A translucent overlay appears as you drag, showing exactly where the window will land.
• The overlay matches the shape of the target zone in your current layout.
• Release while the guide is visible to confirm the snap.

Combine Areas

• Drag a window between the edges of two adjacent zones to snap it across both, filling the combined area.
• Useful for giving one window extra space while keeping other zones available.

Area Snapping Modes

• Near Grid — area snapping activates when dragging near a grid zone boundary.
• All Windows — area snapping activates anywhere over visible windows, including when dragging windows (not just tabs). Pro
• When Dragged vs Always — When Dragged only snaps while you're dragging. Always keeps all windows snapped to the nearest grid zone at all times. Pro

Padding

• Area padding — add a gap between snapped windows (None, 2pt, 4pt, 6pt, 8pt, 10pt, 20pt, 30pt, 40pt, or 50pt). Pro
• Edge padding — add a margin between windows and the screen edges. Pro

Tab Groups

• Create a group — right-click any tab and assign it to a group with a color and name.
• Linked activation — clicking one grouped tab activates all tabs in that group across every pane. Perfect for project-based workflows.
• Each group has a name, color, and optional icon (emoji or SF Symbol).

Managing Groups

• Right-click a tab to assign, reassign, or remove it from a group.
• Each group gets a colored dot and underline on its tabs for quick identification.
• Remove a tab from its group by selecting No Group in the context menu.

Custom Icons

• Add an emoji or SF Symbol icon to any group for at-a-glance recognition.
• Set icons when creating or editing a group in the group settings.

Display Options

• Show in tabs — choose how grouped tabs appear: Auto, Icon, Label, or Color Only. Pro
• Color line — pick where the group color indicator shows: Bottom, Top, Background, or Group. Pro
• Tab menu — choose between Flat or Submenu style when right-clicking to assign groups. Pro

Linked Activation

• Off — clicking a grouped tab only switches that tab; other group members stay as they are.
• Per Group — each group can individually enable linked activation in its settings.
• Always — clicking any grouped tab activates all members of that group across panes.
• On Reclick — linked activation only triggers when clicking an already-active grouped tab.
• Raise window only — when activating linked tabs, only raise the target window instead of bringing all of that app's windows forward.

Window Matching

• App rules — control how UltraSnapper identifies and handles windows from specific apps. Pro
• Match type — choose how window titles are parsed: Full Title, Title Suffix (text after the last dash), or Regex (custom pattern with capture group).
• Filter — optionally filter which windows a rule applies to by title, using a contains search or regex.
• Configure rules in Preferences > Matching.

Behavior Flags

• No Tab — hide matching windows from the tab bar entirely. Useful for utility windows or panels you don't want cluttering your tabs.
• No Snap — allow tabs but only reposition the window when snapping (no resize). Good for windows that need a fixed size.
• Match by Window — use session-only matching so the window's identity doesn't persist across app restarts.

Auto-Assign Tab Groups

• Each rule can automatically assign matching windows to a tab group.
• Set a tab group in the rule editor and any window that matches will join that group when it appears.
• Manually reassigning a window to a different group overrides the rule for the rest of the session.

Browser Tab Matching

• A separate setting controls how browser tabs are matched across sessions.
• Choose from Domain, Full URL, Path, Page Title, or Window (session only).
• Set in Preferences > Matching.

Keyboard Shortcuts

Customization

• All shortcuts can be changed in Preferences > Shortcuts.
• Click a shortcut, then press your preferred key combination to reassign.