Organize Tabs Bookmarks Browsers In One Sidebar With Supasidebar

If your daily browsing sprawls across Safari for personal, Chrome for work, Firefox for a specific extension, and Arc because you couldn't quit it, your bookmarks and open tabs are somewhere across four separate walled gardens. SupaSidebar collapses those four gardens into one sidebar on your Mac.

What SupaSidebar actually does

It's a native Mac app that reads and manages tabs, bookmarks, and history from every major browser at once, without asking any of them to install an extension.

• See tabs from Safari, Chrome, Firefox, Arc, Brave, and more in one sidebar

• Save any page as a bookmark with a keyboard shortcut

• Import existing bookmarks from your browsers

• Fuzzy-search across tabs, bookmarks, history, folders, and spaces

• Group unlimited Spaces for work, study, personal, and side projects

• Organize bookmarks into nested folders

• Sync everything across up to 5 Macs via iCloud

The features that matter

• No browser extension required — SupaSidebar reads native browser data directly, so nothing sits inside Chrome or Safari asking for permissions.

• Keyboard-first navigation — bookmark, search, and jump without touching the trackpad.

• Unlimited Spaces — group tabs and bookmarks by project rather than by browser.

• iCloud sync across 5 Macs — one setup follows you between desktop and laptop with no third-party account.

• Fuzzy search across everything — one query hits open tabs, saved bookmarks, and history at once.

How it fits in your stack

SupaSidebar positions itself against Arc Browser, Raindrop.io, Sidebar App, SigmaOS, TabExtend, and Workona. Those tools either ask you to change browsers or live inside one of them. SupaSidebar takes the opposite side: keep every browser you already use, just stop letting each one own its own bookmark set. That's a smaller ask than switching to Arc, and it fixes the specific problem of multi-browser workflows.

Who it's built for

Mac users whose browsing is genuinely split across multiple browsers — usually because different sites, extensions, or work contexts force it. Designers testing across engines, developers switching between production and preview browsers, and anyone who's tried to declutter bookmarks and given up because the mess spans four apps. If you only ever open one browser, this is not the tool for you and honestly you've already solved the problem it addresses.

The stronger fit is anyone who does research-heavy work: reading three articles, keeping a doc open, comparing two tools, and stashing four links for later. Spaces lets you snapshot that whole context by topic instead of by browser tab, which is closer to how you actually think about the work.

The deal

SupaSidebar's lifetime plan is on DealFuel with unlimited Spaces, 5-device iCloud sync, priority support, and a 30-day refund window. Mac-only for now — if you're on macOS and your browsing lives in more than two apps, this is a one-time fix for a problem that quietly costs you time every day.