TabSashPut related windows together
Drag a window into a group to give windows from different apps one tab strip.
A better way to work across Mac apps
Make room for your work.
Bring windows from different apps into one floating tab strip. Switch what you need, keep your layout, and leave the rest of your desktop in peace.
Version 0.1.3 · macOS 14 or later · Apple silicon · 7-day trial
Less window hunting
A place for every part of the task.
TabSash works with your existing Mac windows. Your apps remain native and independent; the group simply makes them easier to use together.
Find your place quickly
Preview windows with Option–Tab, then use Quick Search to find a window by name.
Keep a useful layout
Snap a group or a single window into flexible screen regions.
Pick up where you left off
Saved groups reconnect as matching windows reopen.
Two windows become one workflow.
Drag the Group control from one window onto another window’s title bar. TabSash places them at the same size and position, then adds a floating tab strip. You can also drag a window into a group you already made. The apps themselves stay separate.
Switch without searching the desktop.
Click a tab, use a configurable keyboard shortcut, or open Quick Search to find a window by its title, app, or group name. The Option–Tab switcher can show thumbnails, app icons, or a compact title list.
Give each window the right amount of room.
Drag the layout control toward a screen edge to preview and apply a region. Choose proportions from one quarter to three quarters of the usable width, or use corner and vertical regions. Layouts work on a whole group or one independent window.
Your groups remember their place.
TabSash saves group membership, selected tabs, and positions. As matching windows reopen, it reconnects them. Optional auto-grouping rules can collect matching apps and window titles into the right group.
Before you install
Made for macOS.
A small native utility, with permissions explained up front.
- Compatibility
- macOS 14 or later. The first release supports Apple silicon.
- Accessibility
- Required to discover and manage your open windows.
- Screen Recording
- Optional. Used only for window thumbnails; without it, TabSash shows app icons instead.
- Window data
- Window grouping and switching happen on your Mac.
Download & pricing
Try TabSash on your Mac.
Start with a 7-day full-featured trial. No payment is required to try it, and the trial does not renew automatically. Download version 0.1.3 for Apple silicon and macOS 14 or later.
Open the DMG and drag TabSash into Applications. On first launch, allow Accessibility in System Settings to manage windows. Screen Recording is optional for thumbnails.
Launch price: US$6.99One-time purchase · Up to 2 Macs
Taxes, if applicable, appear at checkout.
Taxes, if applicable, appear at checkout.
Keep the payment page open and save your license key when it appears. Enter it in TabSash’s license settings. License keys are not automatically emailed.
Perpetual use of the purchased version. Future major upgrades may be sold separately. 7-day refund policy.
Lost your key? Email support with your Paddle order reference and purchase email.