Biba

A calm browser. No AI.

Spaces, a sidebar, and the web in one soft card. Nothing watching, nothing summarising.

Public beta. Mac only, for Apple Silicon.

A Biba window: a lilac sidebar with tabs on the left, YouTube open in a rounded card on the right

Arc is gone. Dia went all in on AI.

We loved how Arc felt: the sidebar, Spaces, the page resting in a calm frame. Its successor turned the browser into a chat window with telemetry from half a dozen vendors.

Biba keeps the feel and leaves the rest out. It is a fork of Helium, which already strips Google services and tracking out of Chromium, with uBlock Origin built in.

Biba is vibecoded. One person and Claude built it patch by patch over a few long sessions. It works, it is fast, and it has rough edges. That is what the beta is for.

Spaces

Separate sets of tabs in one window, each in its own colour. Swipe the sidebar with two fingers to move between them, or press ⌘⌥1–9.
Asleep when you're not looking

Spaces you aren't using are frozen: no scripts, no timers. Less memory, less battery, and they come back exactly as you left them.
The sidebar

Roomy tab rows, pinned sites as tiles. Drag a tab up to pin it, onto a Space dot to move it. ⌘S hides the sidebar when you want the whole screen.
The page is a card

Toolbar and page float as one rounded card over a softly tinted window, and the toolbar takes on the colour of the site you're on.
Search that's just search

⌘T opens a new tab with a box in the middle. Type an address or a question, press Return. No assistant, no suggestions you didn't ask for.
Private by default

No AI, no Google services, no telemetry. Updates come signed from GitHub, and the source is all there to read.

Biba showing GitHub: the toolbar turns dark to match the site, pinned sites sit as tiles at the top of the sidebar — The toolbar takes on the site's colour. Pinned sites live as tiles above your tabs.

A second Space with a blue-tinted sidebar — Each Space has its own colour and its own tabs.

Biba with the sidebar hidden: the page card fills the window — ⌘S hides the sidebar when you want the whole screen.

Try the beta.

Biba updates itself. If something breaks, tell us on GitHub.

Download for Mac Report a bug

A calm browser. No AI.

Arc is gone. Dia went all in on AI.

Spaces

Asleep when you're not looking

The sidebar

The page is a card

Search that's just search

Private by default

Try the beta.