Sunset Browser

Sunset Browser

A calm, fast, native macOS browser. The open-source home for people who love Arc.

Spaces, pinned tabs, folders, a Command Bar and a sidebar that feels like Arc, built from scratch with Swift, SwiftUI, AppKit and WebKit.

Download · Build from source · Roadmap · Contributing

Why Sunset?

Arc changed how many of us use the web, and then it stopped getting new features. Sunset is a community-owned answer: the ideas people loved about Arc, rebuilt as a small, native, open-source app that anyone can read, fix and extend.

• Native and light. Pure Swift on top of the system WebKit. No Electron, no bundled Chromium, no account required, and a fraction of the memory and disk of Chromium-based browsers.
• Feels like Arc. Spaces with their own colors, pinned tabs that remember their home, folders, favorites, a Command Bar and smooth animations everywhere.
• Your data stays yours. Everything is stored locally. Passwords are encrypted, with the key in a file only your user can read (like Firefox without a primary password). Nothing is sent anywhere.
• Bring everything with you. The first launch imports spaces, pinned tabs, folders, bookmarks, history, passwords and signed-in sessions from Arc, Chrome, Safari, Brave or Edge, without touching the original browser.

Features

A Home that follows the sun. The sky changes with the time of day, from sunrise to golden hour to a starry night, with your clock, search and favorite apps.	Command Bar (⌘T). Search, open URLs, jump to any open tab and run browser actions without leaving the keyboard.
Folders with previews. Hover a folder to peek inside and search it. Drag and reorder everything: tabs, folders, favorites and spaces.	Developer mode. Turns on by itself on localhost (or press ⌃D anywhere): full URL, hard reload, responsive sizes and the native WebKit inspector, console and network panels.

And more

• Spaces with gradient themes, grain and light or dark appearance. Switch with ⌃1–⌃9 or by swiping two fingers on the sidebar.
• Pinned tabs that behave like Arc's. They keep their home URL; when you navigate away a / appears so you can jump back.
• Today tabs that close into an archive you can search and restore (⇧⌘T reopens the last one).
• Library with downloads, media and archived tabs.
• Media controls in the sidebar for whatever is playing in other tabs, plus Picture in Picture.
• Protected video (DRM) through FairPlay, the same system Safari uses, so streaming services that support Safari can play in Sunset.
• Password manager with autofill, encrypted locally.
• Web extensions through WebKit's extension support.
• Find in page, zoom and printing, with the standard macOS shortcuts.

Install

1. Download Sunset-Browser.dmg from the latest release.
2. Open it and drag Sunset to Applications.
3. The first time, macOS may say it can't verify the developer (builds are not notarized yet). Open System Settings › Privacy & Security and click Open Anyway.

Requires macOS 14 Sonoma or later, on Apple silicon or Intel.

Build from source

You need Xcode 26 or later (the app icon is an Icon Composer .icon file compiled with actool).

git clone https://github.com/CarlosVP120/sunset-browser.git
cd sunset-browser
./scripts/bundle.sh
open build/Sunset.app

Other useful commands:

swift build                    # compile only
swift test                     # unit and snapshot tests
./scripts/bundle.sh release    # optimized build
./scripts/make-dmg.sh          # universal (Apple silicon + Intel) installer: build/Sunset-Browser.dmg

Handy environment variables while developing:

Keyboard shortcuts

Architecture

Sunset is a Swift package split into small modules, each with one job:

The engine sits behind a protocol, so a Chromium engine (for example through CEF) could be added later without touching the rest of the app.

Naming note: the project started as MiNavegador ("my browser" in Spanish). The package, the app target and the data folder still use that name, and the bundle identifier is com.carlosvp.minavegador, so existing installs keep their data. They will be renamed together with a data migration. Many code comments are still in Spanish too; please write new code comments and docs in English.

Roadmap

• English localization. The interface is currently in Spanish. English, with String Catalogs ready for other languages, is the top priority.
• Signed and notarized releases, with automatic updates.
• Passkeys (needs Apple's com.apple.developer.web-browser.public-key-credential entitlement on an official build).
• Split view, quick windows and link previews.
• Sync between Macs.
• Profiles UI and per-space profiles.
• Optional Chromium engine.

Have an idea? Open a feature request or start a discussion.

Contributing

Contributions of every size are welcome: bug reports, translations, design polish and code. Read the contributing guide to set up the project, and look for issues labeled good first issue.

Please follow the Code of Conduct. To report a vulnerability, see the security policy.

License

Sunset Browser is licensed under the Mozilla Public License 2.0.

Sunset is an independent project. It is not affiliated with, endorsed by or connected to The Browser Company. "Arc" is a trademark of its owner and is mentioned only to describe inspiration and import compatibility. No code or assets from Arc are used.

Screenshots show public websites (NASA, Wikipedia and others) for illustration only; their content belongs to their owners.