SupaSidebar

SupaSidebar is a macOS utility that adds a persistent, vertical sidebar to the operating system, mirroring the Arc browser’s interface across all installed browsers. It aggregates open tabs, bookmarks, files, and applications from Safari, Chrome, and Finder into a single pane, allowing users to view and switch between resources without switching windows. The sidebar also supports custom “Spaces” for organizing content and includes a built‑in search feature that works across the integrated browsers.

The app is aimed at users who work with multiple browsers and want a unified way to manage their web resources, such as developers, researchers, or anyone who frequently juggles many tabs and bookmarks. By operating at the OS level rather than as a browser extension, it can display live tab lists and link browser profiles, providing a consistent experience regardless of which browser is in use.

Key distinctions include its cross‑browser aggregation, the ability to save links, files, and folders from any browser into one sidebar, and the inclusion of a Spotlight‑style search for quick navigation. The software is listed as stable, macOS‑only, and offers a free tier with optional paid upgrades.