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Built security-first · For people and AI agents

The most secure anti-detect browser. Isolated and secure for AI agents.

Browz hides each profile inside its own browser engine, not with scripts a site can catch: one consistent, real device, a network fingerprint identical to Google Chrome, no leaks from your own network, and end-to-end encrypted sync. Give your AI agents the same: a separate profile for every task, sessions that persist, and you a click away when a site asks for a person.

Download Browz Why it’s the most secure Browz for AI agents

No injected scripts · No random noise · Server-blind sync · MCP built in · For Mac, Windows and Linux

Works with what you already use

  • HTTP
  • HTTPS
  • SOCKS4
  • SOCKS5
  • Playwright
  • Puppeteer
  • MCP

Why Browz is the most secure

Separate browsers aren’t enough. Each one has to pass as real and leak nothing.

Giving every account its own browser is only the start. Detectors check whether a browser is telling the truth, and one leak, one injected script or one mismatched value ties your accounts together. Browz secures every layer: the engine, the device it presents, the network and your data.

01

Hidden inside the engine, not injected

The values a site reads are changed in the browser engine’s own C++ code. No script is added to the pages you visit, so there is nothing in JavaScript for a site to find.

0 lies on CreepJS, 8 of 8 visits
02

One real device, not random noise

Each profile is one believable device: platform, screen, fonts, graphics, voices and languages chosen together and kept from session to session. No random noise, the tell detectors look for.

Authenticity 100% on BrowserScan
03

A network fingerprint identical to Chrome

TLS and HTTP/2 come from the engine’s own, unmodified network stack, so every connection a profile makes looks exactly like stock Google Chrome, down to the JA4 hash.

JA4 identical to Google Chrome
04

Nothing leaks from your own network

WebRTC carries the exit’s address, DNS resolves at the proxy, pages can’t probe the services on your computer, and timezone, language and location follow the measured exit.

“No leak” on BrowserLeaks
05

Encrypted so even we can’t read it

Profiles, sessions and proxies are encrypted on your device before they sync, with a key from your password. Our server stores only ciphertext it cannot open. Proxy passwords are sealed at rest.

Server-blind sync
06

Locked down on your computer

The app’s API listens on your computer only and needs a token you can rotate. Lock any profile behind its own password, refuse a launch on a broken exit, and export profiles as encrypted archives.

Loopback API · Profile locks

The common shortcuts

  • Scripts injected into every page, which a page can find
  • Random noise on canvas, audio and WebGL: the tell detectors look for
  • Random personas that can contradict the computer they run on

The Browz approach

  • Changes made inside the engine itself: no page scripts at all
  • One consistent, real device per profile, stable across restarts
  • Network fingerprint identical to stock Google Chrome
  • WebRTC, DNS, localhost probes and timezone sealed to each profile’s exit
  • End-to-end encrypted sync your provider can’t open
All fifteen protections How your data is protected

Browz for AI agents

AI agents are browsing. Give each task a browser of its own.

Agents built on Claude, OpenAI, Gemini, Grok and open frameworks now sign in, shop, research and fill in forms for people. An agent working in your own browser can reach every account you have, and a page that tricks it can act on all of them. In Browz, each task runs in an isolated profile you control.

40%

of enterprise apps will feature task-specific AI agents by the end of 2026, up from less than 5% in 2025 (a forecast).

Source: Gartner, 26 Aug 2025
97M+

monthly SDK downloads of the Model Context Protocol, the standard agents use to reach tools, across 10,000 active servers.

Source: Model Context Protocol, 9 Dec 2025
53%+

of all web traffic in 2025 was automated. In June 2026 bots passed humans on Cloudflare’s network, at 57.5% of requests for web pages, a year ahead of its CEO’s 2027 forecast.

Sources: Imperva Bad Bot Report, 29 Apr 2026; Matthew Prince, Cloudflare CEO, 3 Jun 2026; Cloudflare Radar, via DROIDS!, 4 Jun 2026
23.6%

of prompt-injection attacks succeeded against a browsing agent in its maker’s own tests without defences; 11.2% with them.

Source: Anthropic, 25 Aug 2025

Figures are quoted as each publisher states them, with the date of the source.

01

A separate profile for every task

Your agent creates a profile for the job, with its own cookies, storage, fingerprint and proxy, and deletes it when done. It never touches your own browser.

Available now
02

Sessions that persist

Sign in once. The agent comes back to the same signed-in session on the next run, after restarts and crashes too.

Available now
03

You step in when a site asks

Profiles open as ordinary windows, so you complete a login, 2FA code or CAPTCHA yourself and the agent carries on. A guided hand-off is coming.

Available nowHand-off coming
04

Access that stays on your computer

A bundled MCP server talks to Browz on 127.0.0.1 only, behind a token you rotate, with profile locks and a local action log. Per-agent scopes and audit are coming.

MCP built inScopes coming
Browz for AI agents Connect an agent over MCP

Proof, not promises

Security you can check. We publish what we test.

0/48

server-checked cookie, storage and IndexedDB isolation checks passed

0/6

clean visits to a second, independent detector across three configurations

0

bot flags across 48 visits to an open-source bot detector

0/18

crash, restart and recovery checks with sessions intact

We also ran two leading anti-detect browsers through the same tests.

Called Browser A and Browser B here, each run through the same tests as Browz, with the same number of profiles and visits on each side. These are our own measurements of each product's default setup; where one of them matched Browz, it says so.

3only Browz passed
2both passed
  • Browz and Browser A

    BrowserScan: are separate profiles told apart?

    Browz

    3 profiles, 3 visitor IDs, each kept after a restart

    Browser A

    3 profiles, 1 shared visitor ID

    Only Browz passed
  • Browz and Browser B

    Fingerprint Pro tampering signal

    Browz

    0 of 4 visits flagged

    Browser B

    4 of 4 visits flagged

    Only Browz passed
  • Browz and Browser B

    Bot check, each on its default settings

    Browz

    Clean on 4 of 4 profiles

    Browser B

    Flagged as a bot on 4 of 4: its random personas didn’t match the computer

    Only Browz passed
  • Browz and Browser A

    Pixelscan consistency

    Browz

    3 of 3 consistent, no masking

    Browser A

    3 of 3 consistent, no masking

    Both passed
  • Browz and Browser B

    Bot checks, Browser B set to a Windows persona

    Browz

    Clean 4 of 4 on both detectors

    Browser B

    Clean 4 of 4 on both detectors

    Both passed

Each product was the current public version on its test date.

Every head-to-head result

Use cases

Made for people who run many accounts for a living.

Agencies, sellers, QA teams and researchers use separate profiles so one account’s history never leaks into another’s.

Agencies

Client accounts kept apart

Learn more

E-commerce sellers

Storefronts on platforms that allow them

Learn more

QA & web testing

See your site as different users see it

Learn more

Research & data

Collection within terms and the law

Learn more

How it works

From a new profile to a saved session.

Create a profile, give it its own exit, sign in once, and come back to the same browser every time.

01 / 04

Create a profile for one account.

Name it, file it in a folder, and pick an engine: the Browz engine, with controls for each surface, or your installed Google Chrome with a lighter set of controls.

  • Nested folders, tags, notes and pins
  • Create one at a time or import a CSV
  • Lock a profile behind its own password
02 / 04

Give it its own exit.

Assign a proxy and Browz checks where it really exits. Timezone and WebRTC follow the measured exit, so the profile doesn't contradict its own address.

  • HTTP, HTTPS, SOCKS4 and SOCKS5, credentials sealed
  • Exit IP and location checked before use
  • Optional refusal to launch on a broken or moved exit
03 / 04

Sign in once. Come back to it.

Start the profile and sign in normally. Cookies, sessions and site storage stay with that profile when you stop it, and are there next time.

  • Storage isolated per profile
  • Survives app restarts and crashes
  • Paste cookies in to start a profile already signed in
04 / 04

Automate it, or hand it to an agent.

Every action in the app is on a local API. Start a profile and connect Playwright or Puppeteer, script it from the command line, or let an AI agent work in its own profile through MCP.

  • Local API on your machine, token-protected
  • browz command-line tool
  • MCP server for AI agents

Inside every profile

Fourteen things each profile keeps to itself.

Storage
Cookies
01 / 14

Why Browz

Everything you need to run accounts apart.

An operator’s console, not a toy: dense tables, bulk actions, and every state visible at a glance.

01

Separate, saved profiles

Each profile keeps its own cookies, storage, extensions and bookmarks, and returns exactly as you left it.

Learn more 02

A checked exit per profile

Assign a proxy, see where it really exits, and let timezone and WebRTC follow the measured exit.

Learn more 03

Two engines

The Browz engine gives every surface a control. Installed Chrome runs the real Google Chrome on your computer.

Learn more 04

Automation built in

A local API for everything the app does, a command-line tool, an MCP server and saved RPA flows.

Learn more 05

Synchronizer

Tile running profiles on screen and send one navigation, click or typed text to all of them.

Learn more 06

Teams

A workspace with roles, profiles shared at the access each person needs, one device at a time, and an activity log.

See teams
See all features

Getting set up

From install to first session in minutes.

  1. Step 1

    Install

    Install Browz and open it. Everything runs on your computer.

    Mac and Windows
  2. Step 2

    Add proxies

    Paste your proxies in bulk and check where each one really exits.

    Bulk import · Exit checks
  3. Step 3

    Create profiles

    One at a time, or from a CSV, with proxies assigned by policy.

    CSV import · Assignment policies
  4. Step 4

    Start and sign in

    Start a profile, sign in once, and come back to the same session.

    Saved sessions · Action log
Download and install

Privacy & control

Encrypted end to end. Yours.

Your profiles run on your computer, and what syncs through your account is encrypted on your device first: the server stores only ciphertext it cannot open. The app talks to its own engine over a loopback API that nothing else can use without a token.

Security & privacy
Server-blind syncProfiles and sessions sync end-to-end encrypted, with a key from your password
Sealed credentialsProxy passwords encrypted at rest, never shown again
Token-protected APILoopback only, with a rotating bearer token
Per-profile blocklistsRefuse chosen sites before any connection is made
Encrypted archivesExport a profile as a passphrase-protected .browzprofile file
Profile locksPut any profile behind its own password
No trackers hereThis site self-hosts its font and runs no analytics or ad scripts
Launch guardsA profile with a broken or moved exit refuses to start

Pricing

The same plans. Half the price.

Free for 5 profiles. Pro from $4.99 a month, Business from $17.99 a month with unlimited members. Every plan about half the price of comparable plans from leading anti-detect browsers with the same number of profiles.

Compare plans Download Browz

FAQ

Questions, answered.

What is Browz?

Browz is the most secure anti-detect browser: a desktop app for running many separate browser profiles side by side. Each profile has its own cookies, storage and saved sessions, its own proxy with a matching timezone, and its own consistent device, hidden inside the browser engine rather than with page scripts, so the accounts you keep in different profiles stay apart.

Can AI agents use Browz?

Yes. Browz ships with an MCP server, so an agent in any client that runs local MCP servers (Claude Desktop, Claude Code, Codex CLI, Gemini CLI, Cursor, VS Code and agent frameworks) can create an isolated profile for each task, browse in it, take screenshots and keep its session for the next run. You can step in at a login, 2FA code or CAPTCHA in the same window. A remote MCP server, guided hand-off and per-agent scopes are coming. See Browz for AI agents.

Is Browz an antidetect browser?

Yes, built security-first. Profiles are disguised inside the engine’s own code, present one real, consistent device instead of random noise, send a network fingerprint identical to Google Chrome, keep WebRTC, DNS and timezone on the proxy’s exit, and sync end-to-end encrypted. We publish what we have measured, so you can check it yourself.

Why is Browz more secure than giving each account its own browser?

Separate browsers keep cookies apart, but detectors also compare the device, the network and the way a browser was modified. An injected script, random noise, a WebRTC or DNS leak or a mismatched timezone can still tie accounts together. Browz closes each of those, and encrypts what syncs so even our server cannot read it.

Which proxies does Browz support?

HTTP, HTTPS, SOCKS4 and SOCKS5 proxies, with or without credentials. Browz checks each proxy's real exit address and location before you rely on it.

Is Browz free?

There is a free plan with 5 synced profiles and no team features, and paid plans from $4.99 a month: about half the price of comparable plans from leading anti-detect browsers with the same number of profiles. See pricing for details.

Which computers does it run on?

Mac (Apple Silicon, M1 or later), Windows 10 or 11 (64-bit) and Linux (64-bit x86-64, Ubuntu 24.04, Debian 13 or newer). Download it for your computer from the download page.

Can I bring my existing profiles?

You can import profiles from a CSV file today. Direct import from other multi-profile tools is in development and will be announced once it has been verified against each one.

Where is my data stored?

Profiles run on your computer and sync through your Browz account, end-to-end encrypted, on every plan. The server keeps only ciphertext it cannot open. Proxy credentials are encrypted at rest and never shown again after you save them.

More answers

Get started

The most secure anti-detect browser.

Download Browz See pricing

For Mac, Windows and Linux. Free for 5 profiles.