Circa Browser icon
Circa Browser icon

Circa Browser

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Circa is a free, open-source web browser for macOS, built with Swift, AppKit and Chromium.

Sidebar tabs, pinned sites and a themed Space in Circa.

Cost / License

  • Free
  • Open Source (MIT)

Application type

Since

  • New

Updated

  • Updated Nov 2026

Platforms

  • Mac  Requires macOS 15 or later and Apple Silicon.
Split View with two web pages side by side.
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  •  2 Open Issues
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What is Circa Browser?

Circa is a free, open-source web browser for macOS, built with Swift, AppKit and Chromium.

It organizes tabs in a sidebar with Spaces, profiles, favorites, pinned tabs and folders. A Command Bar brings navigation, tab search, history and browser actions together. Split View opens pages side by side, while Peek and Little Circa provide quick previews.

Circa supports compatible Chromium extensions and user-controlled CSS and JavaScript Boosts. AI features are optional and start disabled. No Circa account is required.

Public preview releases require macOS 15 or later on Apple Silicon and include signed, notarized builds with automatic updates. Compatibility, features and performance are still evolving. The project is MIT licensed and welcomes bug reports and contributions.