Nook
A new browser, not owned by Atlassian.
Free · Open sourceLatest versionMac
About Nook
Nook
A fast, minimal browser with a sidebar-first design for macOS.
Status: Development started back up in September 2026 under a new maintainer. See Releases (opens in a new tab) for the current download.
Features
- Sidebar-first navigation – vertical tabs that feel natural and uncluttered.
- Performance – optimized with modern macOS APIs for speed and low memory use.
- Minimal, modern UI – focused on content, not chrome.
Getting Started
or, Build from Source
Prerequisites
- macOS 26.0 (Tahoe) or later, Apple Silicon
- Xcode (opens in a new tab) 26 or later
Nook builds for Apple Silicon only: the on-device tab organizer depends on MLX, which has no x86_64 slice. Xcode resolves the Swift packages on open.
You’ll need to set your personal Development Team in Signing to build locally.
Project Structure
Architecture Overview
Nook follows a manager-based architecture where:
- Managers handle business logic and coordinate between different parts of the app
- Models represent data and state using Swift's
@Observablemacro - Components are SwiftUI views that reactively update based on model changes
- BrowserManager acts as the central coordinator, connecting all managers together
- Packages hold the model, blocker, tweak and shared view code that has no AppKit dependency, so it can be reused by an iOS app
Description adapted from the project README.
- Version
- 1.2.3
- Updated
- Oct 13, 2026
- Size
- 16 MB
- License
- GNU GPL 3.0
Open source details
- Source code
- Exact source for v1.2.3
- Released
- Oct 13, 2026
- GitHub stars
- 2K
- Website
- github.com/nook-browser/Nook
Community project. Help and bug reports go to the maintainers on GitHub; AppsXi does not provide support for this app.
License
CopyleftGNU GPL 3.0
Use and change it freely; anything built from it must be shared under the same license, with its source.
Read the full licenseHow this app was checked
AppsXi checks every version before it is listed.
Signed by Bain Gurley (ZHB786H6YN)
Apple Developer ID team ZHB786H6YN
Notarized by Apple
Hardened Runtime on
File matches the hash GitHub published
SHA-256 fa352a33d255593df52048c029d658a40fbc49cfdb03ca9de656a62751befc4f
No malware found
ClamAV 1.5.4 on Oct 14, 2026
Install and behavior test in a virtual machine: not run yet
Coming soon for all listings.
Updates itself from the maintainer's own feed
sparkle: https://nook-browser.github.io/Nook/appcast.xml. AppsXi checks each new version too.
Versions
1.2.3checked
Checked Oct 14, 2026 · Mac
DMG · 16 MB
Questions about Nook
Is Nook free?
Yes. Nook is free and open source under the GNU GPL 3.0. AppsXi lists the maintainers' official release and does not charge for it.
Is Nook safe to download?
AppsXi downloads every version of Nook from the maintainers' official GitHub release and checks it before it is listed. For version 1.2.3 (checked Oct 14, 2026), the Mac download is signed by its developer and notarized by Apple, each file matches the checksum GitHub publishes for the release, byte for byte and a malware scan found nothing.
Does Nook run on Apple silicon Macs?
Yes. Nook has a native Apple silicon build.
What does Nook need to run?
Nook needs macOS Tahoe (26) or later.
Who makes Nook?
Nook is an open source project by Nook Browser on GitHub (nook-browser/Nook). Help and bug reports go to its maintainers there.
Reviews
No reviews yet. Anyone who downloads it from AppsXi while signed in can review it a day later.
Something wrong with this app? Report a problem. Maintainer? Claim this listing or ask us to remove it.
