BrowserOS vs Edge

We make Yab, the third column.facts checked Oct 9 ↓

BrowserOS is an open-source Chromium agent browser for Mac, Windows and Linux. Its agent runs on the AI you connect: an API key, a ChatGPT or Copilot plan, Claude Code or Codex, or a local model.

Edge is Microsoft’s Chromium browser on every desktop and phone, with Copilot built in. Since Copilot Mode was retired in May 2026, its agent, Browse with Copilot, comes with Microsoft 365 Premium in the US.

The short answer

Pick BrowserOS

if you want an open-source agent browser on your own AI keys or local models
if you want Claude Code, Codex or Cursor to drive a signed-in browser over MCP
if you use Linux

Pick Edge

if you use Microsoft 365 and want Copilot in the browser
if you want tabs down the side, workspaces, split screen and sleeping tabs built in
if you work on Windows with Edge set up by your company

Or 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

At a glance

BrowserOS and Edge, with Yab beside them for a Mac.

BrowserOS vs Edge
What	BrowserOS	Microsoft Edge	Yab
Made by	Felafax, Inc.	Microsoft	Serafim Korablev
Status	Updated	Updated	Updated
Runs on	Mac, Windows and Linux	Mac, Windows, Linux, iPhone and Android	Mac
Phone app	None; desktop only, and no Android plans as of May 2026	iPhone, iPad and Android; syncs tabs, favorites, passwords and history	Not yet
Price	Free and open source; you pay your own AI provider	Free, with Copilot; Browse with Copilot needs Microsoft 365 Premium $19.99/month (US)	Free; its AI runs on your own Claude or ChatGPT plan
AI	An agent that works in pages, on its own AI or yours	An agent that works in pages, on its own AI service	An agent that works in pages, on your Claude or ChatGPT plan
Driven by outside agents	MCP and a command line	MCP and a command line	MCP and a command line
Engine	Chromium	Chromium	WebKit
Tabs down the side	Yes	A setting	Yes
Spaces	No	Yes	Yes
Split View	Yes	Yes	Yes
Extensions	Chrome Web Store	Chrome Web Store	Chrome Web Store
Ad blocker	No	No	Built in
Open source	Yes	No	No

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.

AIa matter of taste

Both have an agent that works in your pages. BrowserOS’s agent, in the new tab and side panel, clicks, types, fills forms and pulls out data, on the AI you connect. Copilot reads the page, your tabs and history and sums up videos and PDFs; Browse with Copilot scrolls and types in pages for you, signed in, on Microsoft 365 Premium in the US.

Agents like Claude Code and Codexeven

BrowserOS can be driven over MCP and a command line, through a built-in MCP server with one-click setup for Claude Code, Codex and Cursor, and a command line. Edge can be driven over MCP and a command line, through Microsoft’s Playwright MCP, which can launch Edge or attach to your running Edge.

Tabs and windowseven

BrowserOS has tabs down the side, Split View and folders in the sidebar. Edge has tabs down the side as a setting, spaces, Split View, folders in the sidebar and tabs that sleep.

PriceBrowserOS leads

BrowserOS: Free and open source; you pay your own AI provider. Edge: Free, with Copilot; Browse with Copilot needs Microsoft 365 Premium $19.99/month (US).

Where it runsEdge leads

BrowserOS runs on Mac, Windows and Linux. Edge runs on Mac, Windows, Linux, iPhone and Android. On a Mac, Edge needs macOS 13 or later. BrowserOS has no phone app: desktop only, and no Android plans as of May 2026. On the phone, Edge: iPhone, iPad and Android; syncs tabs, favorites, passwords and history.

Engine and extensionsa matter of taste

Both are built on Chromium, as Chrome is, so sites work as they do in Chrome. Both take extensions from the Chrome Web Store.

Privacyeven

BrowserOS has open code. BrowserOS sends prompts and pages only to the AI you connect, or keeps them local with Ollama or LM Studio; it sends anonymous usage analytics. Edge has a VPN. Copilot may use your question, the page, your open tabs and history; Browse with Copilot keeps screenshots up to 30 days, not for training, Microsoft says.

What their pages don’t lead with

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

BrowserOS

No built-in model since version 0.51: connect a provider before the agent works
Its own docs say local models are too weak for agent tasks
Before 1.0 and changing fast: Skills and Memory were pulled in June 2026
No phone apps

Microsoft Edge

Browse with Copilot needs Microsoft 365 Premium ($19.99 a month) and is US only
Copilot reads pages, tabs and history unless you turn it off
Workspaces lost sharing in 2026, and Collections were removed
No ad blocker of its own

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

October 5, 2026BrowserOS: Built-in model and account sign-in removed; Chromium 155 (0.51.0)
June 17, 2026BrowserOS: Claude Code and Codex built into the agent; Skills and Memory removed (0.46.0)
June 4, 2026Edge: Collections removed in Edge 149
May 13, 2026Edge: Copilot Mode retired; its features moved into Edge, and Copilot Actions became Browse with Copilot for Microsoft 365 Premium (US)
March 9, 2026BrowserOS: Vertical tabs became the default (0.42.0)

Questions

Is BrowserOS free?

Yes. Free and open source; you pay your own AI provider.

Is Microsoft Edge free?

Yes, with limits on its AI. Free, with Copilot; Browse with Copilot needs Microsoft 365 Premium $19.99/month (US).

Which has an AI agent, BrowserOS or Edge?

Both. BrowserOS’s agent, in the new tab and side panel, clicks, types, fills forms and pulls out data, on the AI you connect. Copilot reads the page, your tabs and history and sums up videos and PDFs; Browse with Copilot scrolls and types in pages for you, signed in, on Microsoft 365 Premium in the US.

Do BrowserOS and Edge run on Windows?

Yes, both. BrowserOS runs on Mac, Windows and Linux; Edge on Mac, Windows, Linux, iPhone and Android.

Do BrowserOS and Edge have phone apps?

Edge does. BrowserOS has no phone app: desktop only, and no Android plans as of May 2026. On the phone, Edge: iPhone, iPad and Android; syncs tabs, favorites, passwords and history.

Is there a third option on a Mac?

Yab, Yet Another Browser, is free for the Mac: tabs down the side with spaces, folders and Split View, as in BrowserOS; an agent in your signed-in tabs like BrowserOS’s, on the Claude or ChatGPT plan you already pay for. Claude Code, Codex and any MCP client can drive it too. It runs on WebKit, the engine Safari uses, and takes Chrome extensions. It is Mac only, and new.

More comparisons

BrowserOS vs Dia BrowserOS vs Comet BrowserOS vs Atlas BrowserOS vs Opera Neon BrowserOS vs Chrome BrowserOS vs Safari BrowserOS vs Firefox BrowserOS alternatives Yab vs BrowserOS Edge vs Chrome Edge vs Safari Firefox vs Edge Brave vs Edge Opera vs Edge Arc vs Edge Dia vs Edge Edge alternatives Yab vs Edge

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 freeMove from Edge Download