Yab
Free Arc-style Mac browser on WebKit or Chromium, with an agent that runs on your own Claude or ChatGPT plan.
Yab is a closed-source Mac browser by Serafim Korablev that follows Arc's design: a sidebar with pinned and kept tabs, folders, spaces, Peek and Split View. It runs pages on WebKit and, on Apple silicon, optionally on Chromium (added in the 0.46 Nightly builds from 3 November 2026; in the stable 0.47 from 9 November). It has no model of its own: its agent works in tabs signed in as you, using your Claude or ChatGPT plan, and outside agents such as Claude Code can drive it over MCP. The first release was on 2026-09-26; an iPhone beta and an Android alpha sync with the Mac app.
Built-in AI
AI optional
Agent, ⌘J chat and tasks need your own plan (Claude, ChatGPT, Gemini or Cursor); setup can be skipped. Kept-tab short names are made on-device.
yetanotherbrowser.comBloat check
1 thing you didn't ask for
- Telemetry on by defaultDaily activity ping with random install and user IDs, no pages or searches; opt out in Settings › Privacy, Count me in anonymous usage stats.yetanotherbrowser.com
No ads, crypto wallet, feed, upsell or account found in the docs or 0.47.7 binary strings (app not run). Crash reports, Sync and Mail read statuses are off until you turn them on.
Ads, crypto, paid upsells, news feeds, default-on telemetry, required accounts.
Organization
| Feature | Yab | Arc | Note |
|---|---|---|---|
| SidebarVertical sidebarTabs live in a vertical sidebar that is the main tab UI and can be hidden. | ✓ | ✓ | yetanotherbrowser.com |
| SpacesSeveral workspaces per window, each with its own pinned and open tabs, switched by swipe or shortcut. | ✓ | ✓ | Off by default; turn on in Settings › Spaces.yetanotherbrowser.com |
| ProfilesProfiles per Space (shareable)Each Space can use its own browser profile (separate cookies, logins, history), and one profile can be shared by several Spaces. | ✓ | ✓ | Bundle 0.47.7: Space Settings › Sign-ins is Its own, or shares sign-ins, extensions and history with another Space, so several Spaces can share one profile.8hauzhgbhxiipn9a.public.blob.vercel-storage.com |
| FavoritesGlobal favoritesPinned icons at the top of the sidebar shared by every Space (Zen calls them Essentials). | ✓ | ✓ | Pins show in every space that shares sign-ins; spaces with their own sign-ins keep their own pins.yetanotherbrowser.com |
| Pinned TabsPinned tabs & foldersPer-space pinned tabs that act like bookmarks, with nested folders. | ✓ | ✓ | Pins plus kept tabs above a line, with nested folders up to five deep.yetanotherbrowser.com |
| Live foldersSidebar folders that fill and refresh themselves from an outside source, such as GitHub pull requests or an RSS feed. | ✓ | ✓ | Folders refresh from GitHub PRs and issues, Linear, feeds and more every few minutes; off until switched on in Settings.yetanotherbrowser.com |
| ArchiveAuto-archive tabsUnpinned tabs close automatically after a set time and stay recoverable in an archive. | ◐ | ✓ | Unused today's tabs close after 12h to a month, with Undo and reopen; no browsable archive.yetanotherbrowser.com |
| Theme pickerSpace themesPer-space colour or gradient themes. | ✓ | ✓ | Each space has its own color, gradient and grain.yetanotherbrowser.com |
Browsing
| Feature | Yab | Arc | Note |
|---|---|---|---|
| Split ViewTwo or more tabs side by side in one window. | ◐ | ✓ | Documented as any two tabs side by side; more than two is not described.yetanotherbrowser.com |
| PeekLink previewOpen a link in an overlay without leaving the current page (Zen calls it Glance). | ✓ | ✓ | yetanotherbrowser.com |
| Little ArcMini windowA small, chrome-less window for links opened from other apps or a quick search. | ✓ | ✓ | Links from other apps open in a small window by default.yetanotherbrowser.com |
| Command barA ⌘T palette that searches tabs, history, bookmarks and browser commands. | ✓ | ✓ | yetanotherbrowser.com |
| Air Traffic ControlLink routingRules that send links from other apps to a chosen space or profile. | ✓ | ✓ | Per-site rules in Settings › Spaces send links from other apps to a chosen space.yetanotherbrowser.com |
| BoostsSite customizationPer-site custom CSS/JS, or zapping elements off a page. | ✓ | ✓ | Boosts (CSS, or scripts via plugins), a Store, and Hide Element; agent can write them.yetanotherbrowser.com |
| Auto PiPAuto picture-in-picturePlaying video pops out into picture-in-picture automatically when you switch tabs. | ✓ | ✓ | Bundle 0.47.7: Settings › Tabs 'Picture in Picture automatically' floats video on leaving the tab or Yab.8hauzhgbhxiipn9a.public.blob.vercel-storage.com |
| Mini playerMedia still playing in a tab you left keeps play/pause controls in the sidebar. | ✓ | ✓ | A player at the sidebar foot shows what plays in a tab you left, with previous, pause and next on hover.yetanotherbrowser.com |
| Tab SwitcherRecent-tab switcherCtrl+Tab jumps back to the tab you used last and cycles in recently used order. | ✓ | ✓ | Control-Tab returns to the previous tab; holding Control shows a grid of recent tabs, from every space or only this one.yetanotherbrowser.com |
| Super CopyClean link copyA shortcut (⌘⇧C) copies the page URL with tracking parameters removed. | ✓ | ✓ | Shift-Command-C copies the address without utm_, fbclid and gclid parameters; Option-Shift-Command-C copies a Markdown link.yetanotherbrowser.com |
| CaptureScreenshotsBuilt-in capture of a chosen area or element, and of the full page. | ✓ | ✓ | Shift-Command-2 captures a clicked element or dragged area; Return takes what shows, F the whole page; result goes to the clipboard.yetanotherbrowser.com |
Compatibility & migration
| Feature | Yab | Arc | Note |
|---|---|---|---|
| Arc importImports Arc spaces, pinned tabs and folders. | ✓ | – | Bundle 0.47.7: reads Arc's StorableSidebar.json and StorableProfileContainers.json, and imports Arc boosts.8hauzhgbhxiipn9a.public.blob.vercel-storage.com |
| Chrome extensionsInstalls extensions from the Chrome Web Store. | ✓ | ✓ | Bundle 0.47.7: an injected 'Add to Yab' button on the Chrome Web Store for WebKit (WKWebExtension) and Chromium tabs, plus .crx or folder installs; some APIs emulated.8hauzhgbhxiipn9a.public.blob.vercel-storage.com |
| DRM streamingNetflix, Disney+, Spotify web and other DRM video/audio play, through Widevine or, on WebKit, FairPlay. Chromium forks need a Google Widevine licence; FairPlay counts once a major service is confirmed playing in the app. | ◐ | ✓ | Build 0.47.16: Chromium tabs ship no Widevine; 13 services (Netflix, Disney+, Prime, Spotify…) go to WebKit, and a refused Widevine request also moves the tab. No playback proof.8hauzhgbhxiipn9a.public.blob.vercel-storage.com |
| PasskeysWebAuthn passkeys, Touch ID and the system/iCloud keychain. | ✓ | ✓ | Bundle 0.47.7 carries Apple's browser passkey entitlement; changelog 0.41 adds iCloud Keychain, phone and security-key passkeys. The manual still says "off for now".8hauzhgbhxiipn9a.public.blob.vercel-storage.com |
| SyncSpaces, pinned tabs and settings sync across devices. | ✓ | ✓ | End-to-end encrypted: spaces, tabs, bookmarks, settings, passwords; no account needed.yetanotherbrowser.com |
| Mobile appiPhone, iPad or Android app that shares spaces with desktop. | ◐ | ◐ | iPhone public beta (TestFlight) syncs spaces and tabs; Android is alpha.yetanotherbrowser.com |
Extras
| Feature | Yab | Arc | Note |
|---|---|---|---|
| Built-in ad blockerAd and tracker blocking without installing an extension. | ✓ | ✓ | Bundle 0.47.7: uBlock Origin uAssets plus EasyList/EasyPrivacy lists, custom lists allowed; on by default per manual.8hauzhgbhxiipn9a.public.blob.vercel-storage.com |
| Custom ShortcutsShortcut editorMost browser keyboard shortcuts can be remapped in Settings. | ✓ | ✓ | Settings > Shortcuts: filter commands, click a key, press a new one; any command can be rebound or cleared.yetanotherbrowser.com |
More Arc features
Arc features shown but not counted in the score, because almost no replacement has them or only a few people need them.
| Feature | Yab | Arc | Note |
|---|---|---|---|
| EaselsA shareable canvas of live page captures, notes and drawings. | ✕ | ◐ | No easel, board or canvas feature in the manual, changelog or 0.47.7 binary strings; Yab's Arc import says easels stay in Arc.8hauzhgbhxiipn9a.public.blob.vercel-storage.com |
| Shared CollectionsShared spaces & foldersShare a Space, folder or set of tabs as a link anyone can open, or another user can add to their sidebar. | ◐ | ✓ | Several picked tabs copy their addresses, one per line, or as Markdown; no link to share a Space, folder or split.yetanotherbrowser.com |
| PreviewsWeb app previewsHover a pinned Gmail, Calendar or other web app to glance at it; a pinned calendar shows the next meeting with Join. | ✓ | ✓ | Pinned Google Calendar, Notion Calendar or Outlook counts down to the next meeting, then shows Join; Control-Command-J joins it.yetanotherbrowser.com |
| Developer modeA developer view that turns on by itself for localhost: full URL, quick DevTools and dev tools in reach. | ✓ | ✓ | Pages on localhost, 127.0.0.1, .test and .localhost offer Developer Mode: full address band, error count, requests and rulers; the offer can be turned off.yetanotherbrowser.com |
Extension support
Which extension formats and stores run, beyond the Chrome Web Store row above.
| Feature | Yab | Arc | Note |
|---|---|---|---|
| Manifest V2 extensionsThe older extension format Chrome removed in 2025. Needed for full uBlock Origin and other extensions that block requests. | ◐ | ✕ | Runs extensions on WebKit, which loads MV2 but has no blocking webRequest; 0.47.7's extension shims add none.developer.apple.com |
| Manifest V3 extensionsThe current extension format used by the Chrome Web Store (and supported by Firefox and Safari). | ✓ | ✓ | Runs on WebKit's extension engine (macOS 15.4+); Yab fills in APIs WebKit lacks, such as history.yetanotherbrowser.com |
| Firefox add-onsAdd-ons from addons.mozilla.org or .xpi files install and run. | ✕ | ✕ | Extensions come from the Chrome Web Store, other browsers' Chrome-style lists, a .crx file or an unpacked folder.yetanotherbrowser.com |
| Safari extensionsSafari web extensions (the App Store extension apps Safari uses) install and run. | ✕ | ✕ | Uses Safari's extension engine, but installs only Chrome Web Store, imported or unpacked extensions.yetanotherbrowser.com |