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Arc Browser vs SupaSidebar
Arc Browser stopped development in 2025. SupaSidebar brings everything you loved about Arc’s sidebar to every browser - without replacing your browser.
Feature-by-feature comparison
See how SupaSidebar compares to Arc Browser across every major feature
| Features | Arc Browser | SupaSidebar |
|---|---|---|
| Sidebar with pinned items Pin your most-used links for instant access | Yes Built-in sidebar with favorites and pinned tabs | Yes Dedicated sidebar with pinned links, spaces, and folders |
| Spaces / Workspaces Organize links and tabs by project or context | Yes Spaces for organizing tabs by context | Yes Unlimited spaces with custom icons and colors |
| Command palette Fuzzy search across tabs, bookmarks, files, and apps | Yes Searches Arc tabs and bookmarks only | Yes Searches tabs from all browsers, bookmarks, files, and apps |
| Works with any browser Safari, Chrome, Firefox, Brave, Edge, and more | No Arc is a standalone browser - replaces your existing browser | Yes Works alongside Safari, Chrome, Firefox, Brave, Edge, and more |
| Live Tabs across browsers See open tabs from all browsers in one panel | Partial Shows only Arc's own tabs | Yes Aggregates open tabs from every running browser |
| Air Traffic Control Auto-route links to specific browsers or spaces | Partial URL routing within Arc only, not across browsers | Yes URL rules auto-open links in the right browser and space |
| Native macOS app Built with Swift and SwiftUI | Partial Chromium-based - heavier resource usage | Yes Optimized Swift app, minimal RAM and battery usage |
| Smart Folders Auto-organized folders based on custom rules | No No smart folder or auto-organization features | Yes Auto-organized folders based on custom rules |
| AI-powered tags Local AI tagging with on-device models | No No AI tagging capabilities | Yes On-device ML models for automatic tagging |
| Files, folders, and apps in sidebar Drag anything from Finder into the sidebar | No Web-only - no local file or app integration | Yes Drag files, folders, and apps from Finder into the sidebar |
| iCloud Sync Syncs sidebar across all your Macs | Partial Cloud-based account sync via Arc servers | Yes Native iCloud sync across all your Macs |
| Privacy-first (local data) Nothing leaves your Mac unless you enable iCloud | No Data stored on Arc's cloud servers | Yes All data stays on your Mac unless you opt into iCloud |
| Active development | No Discontinued in 2025 - security patches only | Yes Regular updates with new features |
| Overall | Discontinued | Best Choice |
Sidebar with pinned items
Pin your most-used links for instant access
Dedicated sidebar with pinned links, spaces, and folders
Built-in sidebar with favorites and pinned tabs
Spaces / Workspaces
Organize links and tabs by project or context
Unlimited spaces with custom icons and colors
Spaces for organizing tabs by context
Command palette
Fuzzy search across tabs, bookmarks, files, and apps
Searches tabs from all browsers, bookmarks, files, and apps
Searches Arc tabs and bookmarks only
Works with any browser
Safari, Chrome, Firefox, Brave, Edge, and more
Works alongside Safari, Chrome, Firefox, Brave, Edge, and more
Arc is a standalone browser - replaces your existing browser
Live Tabs across browsers
See open tabs from all browsers in one panel
Aggregates open tabs from every running browser
Shows only Arc's own tabs
Air Traffic Control
Auto-route links to specific browsers or spaces
URL rules auto-open links in the right browser and space
URL routing within Arc only, not across browsers
Native macOS app
Built with Swift and SwiftUI
Optimized Swift app, minimal RAM and battery usage
Chromium-based - heavier resource usage
Smart Folders
Auto-organized folders based on custom rules
Auto-organized folders based on custom rules
No smart folder or auto-organization features
AI-powered tags
Local AI tagging with on-device models
On-device ML models for automatic tagging
No AI tagging capabilities
Files, folders, and apps in sidebar
Drag anything from Finder into the sidebar
Drag files, folders, and apps from Finder into the sidebar
Web-only - no local file or app integration
iCloud Sync
Syncs sidebar across all your Macs
Native iCloud sync across all your Macs
Cloud-based account sync via Arc servers
Privacy-first (local data)
Nothing leaves your Mac unless you enable iCloud
All data stays on your Mac unless you opt into iCloud
Data stored on Arc's cloud servers
Active development
Regular updates with new features
Discontinued in 2025 - security patches only
Overall
Why users switch from Arc to SupaSidebar
The best of Arc’s sidebar, made browser-independent.
Works with every browser
Arc forced you into one browser. SupaSidebar sits outside your browser - use Safari for personal, Chrome for work, Firefox for dev. One sidebar for all of them.
Native macOS performance
Built with Swift and SwiftUI, not Chromium. Uses a fraction of the RAM and battery while integrating deeply with macOS.
Search across all browsers at once
Arc could only search its own tabs. SupaSidebar's Command Panel searches tabs from every open browser, plus your bookmarks, files, and apps.
Air Traffic Control for all browsers
Set URL rules that auto-open links in the right browser and space. Work links go to Chrome, personal links go to Safari - automatically.
Frequently asked questions
Is Arc Browser dead?
Arc Browser stopped active development in May 2025. The Browser Company pivoted to Dia, an AI-first browser, and was acquired by Atlassian in September 2025. Arc receives security patches only - no new features or bug fixes.
Does SupaSidebar replace my browser like Arc did?
No. SupaSidebar is not a browser. It is a native macOS sidebar app that works alongside any browser. You keep using Safari, Chrome, Firefox, or whatever you prefer. SupaSidebar adds the sidebar, spaces, and command panel on top.
Can I import my Arc bookmarks into SupaSidebar?
Yes. SupaSidebar supports importing bookmarks from Arc and other Chromium-based browsers. Your pinned tabs, bookmarks, and folder structure transfer over.
How is SupaSidebar different from Zen Browser or Vivaldi?
Zen and Vivaldi are full browsers - you have to switch to them. SupaSidebar works with every browser at once. See the full comparison on the sidebar browsers comparison page.
Is SupaSidebar free?
SupaSidebar has a free tier with 3 spaces and all core features. Pro unlocks unlimited spaces, iCloud sync, and early access to new features.
More comparisons
Ready to get your sidebar back?
Download SupaSidebar for free. Keep using your favorite browser.