Contrail Browser
A browser for Mac, iPhone & iPad
0.9 Beta
Free

Your job in one Space. Your Kyoto trip in another.

Contrail keeps your tabs down the side of the window, sorted into Spaces you switch with a swipe. The same Spaces on your Mac, iPhone and iPad.

CONTRAIL

Download for Mac Free. macOS 15.4 or later.

No account. No ads. No analytics. Built on Apple’s WebKit. Blocks trackers out of the box.

Same browser, every screen

Mac · iPad · iPhone · Duo
Contrail full screen on a MacBook Pro, with the menu bar and Dock. The green Kyoto Space's sidebar holds the address field, Favorites for Google Maps, YouTube, GitHub and Apple Music, the pinned flights from San Francisco and the Higashiyama Airbnb, and today's Google Maps, japan-guide Kyoto guide and Michelin Kyoto restaurants tabs, beside japan-guide.com's Kyoto page.
Mac0.9 · Desktop
Contrail on an iPad in landscape with the same green Kyoto Space: the same Favorites, the pinned flights and Airbnb, and today's tabs, beside japan-guide.com's Kyoto page.
iPad0.9 · Full screen
Contrail on an iPhone showing the Kyoto Space's tab list: Favorites for Google Maps, YouTube, GitHub and Apple Music, the pinned flights from San Francisco to Osaka and the Higashiyama Airbnb, and today's Google Maps and Kyoto travel guide tabs.
iPhone0.9
Contrail on an iPhone Duo. Closed, its outer screen shows the Michelin Guide's Kyoto restaurants. It unfolds, and the inner screen shows the Kyoto Space's sidebar beside the same page.
iPhone Duo0.9 · Fold
(01)Moving from Arc

Arc closes on December 22. Bring your Spaces.01

Contrail's Import from another browser sheet, with Arc chosen: it can import your Spaces, pinned tabs, Favorites, history, cookies, bookmarks, search engine, site permissions and extensions from Arc.

Pick Arc and Contrail copies your Spaces, pinned tabs, folders, splits and Favorites, with your history and bookmarks. Arc’s own data stays as it was. The sidebar and the two-finger swipe work the way you’re used to, and now your iPhone and iPad have them too.

(02)Spaces

Swipe from work to Kyoto.02

Each Space keeps its own tabs and its own color. Two fingers on the trackpad and your work tabs slide away. The trip’s tabs are already waiting.

(04)Split view

Drop one tab on another.04

They open side by side. Here the Kyoto guide sits next to Airbnb’s map of Higashiyama, so you can match temples to apartments without switching. Up to four pages at once.

(05)Glance

Peek at a link. Your page stays put.05

Shift-click a link and it opens in a card over the page you’re reading. Close it and you’re back where you were, or keep it as a tab.

(06)Command Bar

Type three letters. You’re on the tab.06

Press Command-T and type “air”. The Airbnb tab you already have comes up first with Switch to Tab, so you go back to it instead of opening a second copy. History and search sit underneath.

(07)Blocking

Blocked: 5. Installed: nothing.07

Contrail blocks ads and trackers on your Mac, iPhone and iPad, with no extension to find or install. The page menu counts what it stopped on the page you’re on.

(08)Sync

Plan it on your Mac. Check it on the train.08

The Kyoto Space on a MacBook Pro.
The same Kyoto Space on an iPad.
The same Kyoto Space on an iPhone.

Your Spaces, tabs and Favorites sync through your own iCloud, so the Kyoto Space looks the same on your Mac, iPad and iPhone. There’s no Contrail account to make.

(09)Privacy

Contrail never asks who you are.09

  • AccountsNone
  • AdsNone
  • AnalyticsNone
  • SyncYour own iCloud
  • Crash reports on MacOnly if you opt in

Read the privacy policy ↗

(10)Questions

Questions10

Is it free?
Yes.
Who makes Contrail?
An independent developer.
Does it work with my extensions?
On the Mac, add extensions from the Chrome Web Store. On iPhone and iPad, Chrome Web Store extensions are in the beta, under Settings ▸ Extensions.
Can I bring my tabs from Arc, Chrome or Safari?
Yes. On the Mac, Contrail imports from Arc, Chrome, Brave, Firefox and Safari: history, bookmarks, open tabs, cookies and more. From Arc it also brings your Spaces, pinned tabs and Favorites.
Is it ready for every day?
The Mac app is in beta and updates itself. The iPhone and iPad app is in a public TestFlight beta.

Bring your Spaces before December 22.