Every bit of Arc.
Nothing leaves your Mac.

A native Mac browser with Arc's sidebar, Spaces, Peek and Split View. No account, no telemetry, and no AI unless you turn it on.

Request alpha access

Private alpha for Apple Silicon Macs on macOS 13 or later.

Spaces that feel like rooms.

Each Space has its own tabs, colors and profile, so work sign-ins never meet weekend ones. Keep scrolling: this page is switching Spaces right now.

Work The Work Space next to linear.app

Studio, for the things you make.

Studio The Studio Space's mint sidebar next to NASA's Astronomy Picture of the Day

Play, for the weekend.

Play The Play Space's lavender sidebar next to Apple's Apple Watch page

Night, when the room goes dark. Two fingers swipe between them all.

Night The Night Space's dark plum sidebar next to Linear's Method page

Press Tidy and Today sorts itself by site and subject, with a little sparkle.

Studio's Today tabs grouped by Tidy

⌘T knows where everything is.

Addresses, searches, open tabs in any Space, your history and every command, in one field. It finishes the address as you type and does quick sums.

The Command Bar in the Night Space finishing 'stri' to stripe.com

Peek at a link, or split the window.

Shift-click to preview a page without leaving yours.

Peek in the Play Space previewing Unsplash's Nature page

Drag a tab onto the page to split it.

Apple Watch and Wikipedia side by side in the Play Space

Keep going. Four sites, one window, each with its own back button.

Four panes in the Play Space

Easels and Notes, next to your tabs.

Sketch with shapes, arrows and ink, and capture any page onto the board.

An Easel called Launch board with shapes, an arrow and a squiggle

Paint every Space its own colors, with gradients and grain.

The theme picker turning the Work Space pink to violet

The little things, all there.

Links from other apps open in Little Boppo, a small window you can send to any Space.

Little Boppo beside the main window

Videos float when you switch tabs.

Raycast in the Work Space with a video floating in its own window

Reader View clears a page to text, in light, sepia or dark.

Reader View in sepia on Wikipedia's Aurora article

And ⌃Tab flips through your recent tabs.

The Control-Tab switcher's cards

Yours alone.

Seven days of building,
and a test for every feature.

93 features, each with its own test. 7 days, Oct 24 to 30. 181 commits. About 180 scripted end-to-end checks. And 0 accounts to make.

All features.

Features marked have a quick demo. Hover or click one to watch it.Tap one to watch it.

    Questions.

    Which Macs does it run on?

    Apple Silicon Macs on macOS 13 or later.

    Do I need an account?

    No. There's no account and no server: everything stays on your Mac.

    Is there AI in it?

    Only if you ask. Smart Tidy uses Apple's on-device model; plain Tidy sorts by site and title words without any AI.

    Do my Chrome extensions work?

    Boppo installs extensions straight from the Chrome Web Store.

    Can I bring my Arc tabs over?

    Not yet. Import from Arc and other browsers is on the list.

    When can I download it?

    Alpha testers come first. A signed public release comes after.

    Want in?

    Boppo is in private alpha. Leave your email and the request goes straight to the person building it.