Eight layouts, one click
Two side by side, three in a row, grids up to six, then back to the strip. Tramline respects apps that refuse to get too narrow.
Mail
Editor
Your windows, on a rail.
Tramline lines up your Mac windows side by side on a strip that scrolls. Open a new one and it lands right next to you, while every other window keeps its size. No config files, no Terminal: it just works.
macOS 14 or later · Apple silicon · One-time purchase, no subscription
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Music
Hover the screen and use your keyboard, or swipe the strip with your trackpad. It always stops on a window.
Works with every Mac app you already use
Finder
Safari
Mail
Notes
Terminal
Chrome
Slack
VS Code
Notion
Spotify
ClaudeFinderSafariMailNotesTerminalChromeSlackVS CodeNotionSpotifyClaudeHow it works
You pick the width. Tramline keeps the order.
A tiling tool divides your screen between every window. Tramline gives each window its own column on an endless strip.
1
Open an app
It slides in right beside the window you're using. Nothing else moves, nothing shrinks.
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2
Pick a width
A third, a half, two thirds or the whole screen. Your choice sticks, even when more windows arrive.
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3
Glide along
Swipe with three fingers and the strip follows, then stops cleanly on the next window.
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4
Out of room? Keep going
The strip simply grows past the edge of the screen. Every window stays full size and readable.
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Mail
Music
5
Close one
The gap closes on its own. Your strip stays tidy, all day long.
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Features
Everything you need. Nothing to configure.
Always know where you are
A tiny overview of your strip appears whenever it moves.
Click any window in the map to jump there.
Your setup, back in a click
Save your apps, their order and their width. Tomorrow morning, one shortcut brings it all back.
Work⌃⌥⌘1
Accounts⌃⌥⌘2
Evening⌃⌥⌘3
Dim everything else
Only the window you're working in stays bright. Great for writing, perfect for screen sharing.
Notes
Editor
Messages
One strip per screen
Side by side or stacked. Unplug a screen and your windows come back.
Mail
Browser
Calendar
Every app, your way
Floating, a default width, or left alone. Two clicks.
CalculatorFloating
BrowserHalf width
GamesExcluded
Shortcuts you can see
Press ⌃⌥I anytime for an illustrated cheat sheet. Rebind anything.
⌃⌥←⌃⌥→⌃⌥R⌃⌥F⌃⌥S⌃⌥D⌃⌥I⌃⌘4
Works with everything
Every app you use. No plugins, no setup per app.
If it opens a window on your Mac, Tramline puts it on the strip. Apps with a fixed size simply float.
Setup
Ready in two minutes.
A short welcome walks you through the one permission macOS asks for. One button opens the right setting.
Make it yours
Tweak it with a click, not a config file.
Every setting is a switch or a slider, and you see the result instantly. Try it right here.
Gaps8 pt
Accent
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macOS can tile. Tramline lets you breathe.
When you open a window
It lands beside you, nothing moves
macOS tiling : You place it yourself
Grid window managers : Every other window shrinks
With lots of windows
They stay full size, off to the side
macOS tiling : They pile up and overlap
Grid window managers : They get too small to read
Getting started
Nothing to set up, all point and click
macOS tiling : Drag every window
Grid window managers : Often a text config file
Trackpad
Three-finger swipe with clean stops
macOS tiling : No
Grid window managers : Rarely
Workspaces
Yes, in one click
macOS tiling : No
Grid window managers : Rarely
Multiple screens
One strip per screen, side by side or stacked
macOS tiling : Yes
Grid window managers : Depends on the tool
Pricing
Pay once. Keep it.
No subscription. One price, every feature.
LAUNCH PRICE
€9.99€14.99
One-time purchase · Price goes up after launch
- Every feature, no add-ons
- License for 2 Macs
- Free updates for all of version 1
- English, French and German
Coming very soon to the Mac.
7-day free trial
The full app, no credit card. Decide once you've tried it on your own Mac.
14-day refund
Not for you? Write to us and get your money back, no questions asked.
Private by design
No account, no analytics. Your windows never leave your Mac.
FAQ
Questions, answered.
Something else? Write to us from the app, a real person replies.
Instead of splitting your screen between every window, it lines them up side by side on a strip wider than the screen. Each window keeps its width, and you slide the strip to move between them.
Stop resizing. Start gliding.
Seven days to try it, no credit card. You won't want to go back.