Yab

Yab vs Browser Use

We make Yab, so read it as our side.facts checked Oct 9 ↓

Yab, Yet Another Browser, is a free Mac browser that keeps everything from Arc (tabs down the side, spaces, folders, Split View) and gives your Claude or ChatGPT plan an agent that works in your signed-in tabs.

Browser Use is an open-source Python library, command line and MCP server for building browser agents, with a paid cloud for running many browsers at once.

The short answer

Pick Yabours
  • if you miss Arc and want spaces, pins and folders kept, on a Mac
  • if you already pay for Claude or ChatGPT and want it to work in your signed-in tabs
  • if you want Claude Code, Codex or Cursor to drive a real browser over MCP
Pick Browser Use
  • if you build your own browser agents in Python
  • if you run many browser sessions in the cloud, with proxies
  • if you want Claude Code or Codex to use your running Chrome through its command line

At a glance

Yab and Browser Use, side by side.

Yab vs Browser Use
WhatYabBrowser Use
Made bySerafim KorablevBrowser Use
StatusUpdatedUpdated
Runs onMacMac, Windows and Linux
PriceFree; its AI runs on your own Claude or ChatGPT planLibrary free (MIT); cloud pay as you go, from $0.02 per browser hour
DrivesYab itself, a browser on your MacYour running Chrome, a local browser or cloud browsers
Your sign-insYab is the browser you sign in to, so agents work with your sign-ins.Browser Use’s command line attaches to your running Chrome, with your sign-ins.
Works withyab mcp and the yab command, for Claude Code, Codex, Cursor and any MCP clientClaude Code, Codex and Cursor through its command line, and any MCP client
Open sourceNoYes

Checked October 9, 2026 on each maker’s own pages, linked under Sources. Prices are per month, in US dollars.

Where they differ

What separates them, area by area. Where one plainly has more, it says who; where it comes down to taste, it says so.

What it drivesa matter of taste

Yab’s agent works in tabs of its own beside yours, signed in as you, on your Claude or ChatGPT plan; Send, Pay and Delete wait for your yes. Browser Use is an open-source agent that drives your running Chrome, a local browser or cloud browsers, on your OpenAI or Anthropic key, its own model or a local one.

Your sign-insa matter of taste

Yab is the browser you sign in to, so agents work with your sign-ins. Browser Use’s command line attaches to your running Chrome, with your sign-ins.

Which agents can use iteven

Yab works with yab mcp and the yab command, for Claude Code, Codex, Cursor and any MCP client. Browser Use works with Claude Code, Codex and Cursor through its command line, and any MCP client.

Priceeven

Yab: Free; its AI runs on your own Claude or ChatGPT plan. Browser Use: Library free (MIT); cloud pay as you go, from $0.02 per browser hour.

Where it runsBrowser Use leads

Yab runs on Mac. Browser Use runs on Mac, Windows and Linux.

Where Browser Use is better

Browser Use comes out ahead on where it runs. It is also the better pick if you:

  • Build your own browser agents in Python
  • Run many browser sessions in the cloud, with proxies
  • Want Claude Code or Codex to use your running Chrome through its command line

The catch with each

Real limits, from the makers’ own words and our own use.

Browser Use

  • The library is free; models and cloud browsers cost money
  • Telemetry is on by default and can include task text and addresses
  • Reusing your real Chrome profile can mean quitting Chrome first

Yab, honestly

  • Mac only: macOS 15.4 or later, no Windows, iPhone or Android
  • New: first released in September 2026
  • Its AI needs a Claude or ChatGPT plan; ChatGPT’s free plan may work with low limits
  • WebKit, as in Safari: a site tested only in Chrome can misbehave
  • Closed source

What changed lately

  • September 25, 2026Yab: First release
  • March 23, 2025Browser Use: Raised a $17M seed round led by Felicis

Questions

Is Yab free?

Yes. Free; its AI runs on your own Claude or ChatGPT plan.

Is Browser Use free?

Yes, with limits on its AI. Library free (MIT); cloud pay as you go, from $0.02 per browser hour.

Which one works in my signed-in browser, Yab or Browser Use?

Yab is the browser you sign in to, so agents work with your sign-ins. Browser Use’s command line attaches to your running Chrome, with your sign-ins.

Which runs on Windows, Yab or Browser Use?

Browser Use does. Yab runs on Mac.

More comparisons

Browser Use vs Claude in ChromeBrowser Use vs Playwright MCPBrowser Use vs CodexBrowser Use vs Chrome DevTools MCPBrowser Use alternatives
Sources, read October 9, 2026. Something out of date? Write to hello@serafimlabs.io and we fix it.

Yab, Yet Another Browser.

Free for the Mac. Arc’s sidebar, your own Claude or ChatGPT as the agent, Chrome extensions on WebKit.

it’s freeDownload