SupaSidebar – I made Arc's sidebar universal for every browser

Name: SupaSidebar – I made Arc's sidebar universal for every browser
Availability: InStock
Author: supasidebar

by supasidebar·Feb 26, 2026·1 point·0 comments

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AI Analysis

●MidEye Candy

Arc's sidebar features ported to macOS; competes with built-in Safari features and Raycast.

Strengths

•Native Swift/AppKit implementation—no Electron bloat, respects macOS design language
•Keyboard-first UX with global shortcuts mirrors Arc's flow; solves real tab/window switching fatigue
•Thoughtful feature set: Recents tracking, profile-to-Space linking, AI tagging

Weaknesses

•Arc's sidebar is niche nostalgia—target audience is ex-Arc users, not a broad productivity gap
•Raycast and Safari reading list already cover link saving; unclear differentiation beyond UI familiarity

Post Description

Hey HN! I was very early adopter of Arc. as a dev, I enjoyed useful shortcuts (like copy URL), vertical sidebar, command panel, and other cool features. when TheBrowserCompany left Arc, i also switched browsers but missed all those cool features. so I decided to make Arc’s features universal.

Meet SupaSidebar - Arc-like sidebar for all browsers

Here’s what the app can do: - Save links, files, and folders from any browser or Finder - Fuzzy search current open tabs, browser history, and saved links - Open saved links in any browser with just a click - Common browser history across browsers - iCloud sync - Link browser profiles to Spaces and quickly switch between them - Built-in sidebar feel with fullscreen, overlay protection, auto show/hide etc. - Global shortcuts, Air Traffic Control, AI tagging, and more

here's a demo video: [SupaSidebar Demo](https://youtu.be/OimIUO0PSAk)

Free to use for up to 3 Spaces. Native Swift/AppKit, no Electron.

Still in development and I’m making it better daily, so any feedback would be appreciated.