Every account gets a browser of its own.

Run every account you are entitled to side by side, and keep the browser from tying them together: each profile has a fingerprint drawn from a real machine, its own proxy exit and its own cookie jar, checked before it opens. Start with 3 free profiles, no card. Pro is $49 a month for any number.

Download for MacDownload for MacFree account · Apple Silicon and Intelv0.1.23 · 132 MB Windows: coming soonDownload for WindowsEngine not built yet · Mac only today64-bit installer

Mosaic is a desktop app

Email yourself the link and open it on your computer.

Own Chromium, 64 patches A proxy exit per profile Free: 3 profiles

The Mosaic profiles table: names, coloured tags, proxy locations and a Start button on each row

Shop — Berlin 03running

PlatformmacOS · Chrome

GPUApple M2 Pro

Screen1512 × 982

CPU threads10

TimezoneEurope/Berlin

Languagesde-DE, de, en

Exit91.64.x.x · Berlin, DE · residential

Sessionsessid-z1n4ph

Cookie jar214 cookies

Illustration: one profile, as its values fit together.

01 What a profile is

A profile is three things that agree with each other.

A site links two accounts by something they share, a cookie or an address, and spots a made-up one by values that contradict each other, like a Windows browser reporting a Mac’s GPU. So a Mosaic profile is a fingerprint, a proxy and a cookie jar, and the whole product is keeping those three in step on your computer.

A fingerprint

Drawn whole from one real machine (GPU, screen, CPU, fonts, canvas and audio), so the parts agree. Set in C++ inside Mosaic’s own Chromium, never painted on with JavaScript a page can catch.

155 real device records

A proxy exit

Each profile browses through its own address. Mosaic measures where the proxy really comes out and sets the timezone, languages and location to match it: a Berlin exit gets a Berlin clock.

Checked before every launch

A cookie jar

Logins, cookies and 2FA codes live with that profile and nothing else. Encrypted on disk, kept on your computer, carried by no cloud and shared with no other profile.

Encrypted, local, yours

One account’s browser Run a hundred side by side, each on its own machine, its own exit and its own cookies.

02 The proof, not a promise

Numbers you can check, because nobody can promise “undetectable”.

64Patches on stock ChromiumMosaic builds its own Chromium, Tesseract Chrome, and moves fingerprint values in C++, not in injected JavaScript a page can read.

155+3Real machines in the catalogue155 desktop device records and 3 Android phones captured whole, so every profile is one machine that actually ships, drawn together.

49Public detectors, read for youCreepJS, Pixelscan, IPHey, BrowserScan and more, in five groups. Run a profile against them yourself and read every verdict.

500Profiles in one batchCreate, start, tag and drive them together, and each one mints its own proxy session, so no two share an exit by accident.

0Lines of spoofing JavaScriptNothing is faked in the page. There is no injected script for a consistency scanner to find, because the engine itself answers.

03 Matched to the exit

Change the proxy and the place changes with it.

A Berlin address with a Texas clock is how accounts get linked. Mosaic measures where each proxy really comes out and sets the timezone, languages and location from there. The machine stays the machine; only the place moves.

How exit matching works

Shop — Berlin 03one profile · illustration

Proxy exit

DEBerlinresidential91.64.x.x USAustinresidential104.28.x.x JPOsakamobile126.15.x.x —No proxythis computeryour own

The placefollows the exit

Timezone: Europe/Berlin
Local time: --:-- UTC+01:00
Languages: de-DE, de, en
Geolocation: 52.52, 13.40

The machinestays put

GPU: Apple M2 Pro
Screen: 1512 × 982

Exit measured in Berlin, DE. Clock, languages and location drawn from it.

04 Proxy providers

Paste one gateway line. Get a different country for every profile.

A residential seller hands you one gateway line with a session id inside it, and changing that id by hand for every account is your job. Paste the line into Mosaic once instead. It is kept as a template, each profile mints a session id of its own, and the country goes in using the word that seller’s line format has for it.

One session id per profile. Two profiles end up on the same exit only if you put them there, never because a line was copied.
Country, state and city, where the seller has a word for them. Ask for a city at a seller with no city key and Mosaic refuses it by name rather than dropping it.
A dead session costs a new one. Mosaic does not try the same token three times. A session you pinned stays pinned.

How minting works

One pasted gateway linegate.seller.example:7777:customer-acme-cc-{country}-sessid-{session}-sesstime-30:••••••••

Shop — EU 01sessid-q7k2mx91.64.x.x · Berlin, DE

Shop — EU 02sessid-8vtr0d88.120.x.x · Paris, FR

Shop — EU 03sessid-z1n4ph84.105.x.x · Amsterdam, NL

Shop — EU 04sessid-b9w6ce93.44.x.x · Milan, IT

Shop — EU 05sessid-m3j8tu88.27.x.x · Madrid, ES

Shop — EU 06sessid-x5h2la46.114.x.x · Warsaw, PL

Illustration. Mosaic reads each seller’s own format off the line you paste: 40 sellers in the table, 6 of them captured from real lines.

The provider in the app: one line, a session per profile.

05 Everything else

29 features, all of them on your computer.

Pick a group, then click a feature to read what it is. Each one has a page of its own: the screenshot, how it works, and the honest limit.

Its own ChromiumTesseract Chrome: values changed in C++, not JavaScriptTesseract Chrome is stock Chromium source plus a patch series of our own. Fingerprint values move in C++, so every page, frame and worker reads the same machine.How it works

Machines that existGPU, screen, CPU and fonts from one real deviceA fingerprint is picked as a whole device: its GPU as the driver names it, its CPU threads, its memory and the screens it really ships with. The parts agree because they came from one machine.How it works

Matched to the exitTimezone, language and location follow the proxyMosaic measures the exit address a profile browses from and sets its timezone, languages and geolocation to match. A Berlin exit gets Berlin’s clock.How it works

Desktop and Android profilesmacOS, Windows, Linux and Android, on any computerA Mac can make macOS, Windows, Linux and Android profiles, and so can a PC. Your own OS still matches best, so the editor says so before you claim another one.How it works

A new profile’s identity: the operating system, browser and GPU renderer the engine will answer with.

One machine, drawn whole: renderer, CPU cores, memory, screen and pixel ratio, from one device record.

A new profile matched to its proxy’s exit in Berlin: timezone, languages and geolocation set from there.

The new-profile editor. Desktop and Mobile are separate libraries in the sidebar.

Checked before every launchNo profile opens behind a proxy that has not answeredBefore every launch Mosaic checks that the proxy answers and tunnels. If it does not, the launch stops and tells you which part failed.How it works

Provider mintingOne gateway line, a separate exit for every profileA proxy seller gives you one gateway line with a session id in it. Mosaic keeps that line as a template and mints a new session for every profile, so forty profiles get forty exits from one paste.How it works

Bulk proxy import and assignPaste hundreds, assign them, export them, rotate themPaste a list in any common format, or a CSV with a header row. Mosaic reads every line, says why any line was refused, and assigns the result to as many profiles as you select.How it works

Dead-session rotationA session that reaches nothing is replaced, not retriedA residential pool sometimes hands out a session that reaches nothing, and it stays dead for every attempt on that token. Mosaic mints a different session instead of retrying the same one, and writes the working one back.How it works

Exit reputationBlocklists and network type before you trust an exitA proxy that connects is not always one worth using. Mosaic checks the exit against public blocklists and reads whether it sits on a home network or a datacentre.How it works

Traffic inspectionProxyman, Charles, mitmproxy, Fiddler or Burp in frontRoute launches through Proxyman, Charles, mitmproxy, Fiddler or Burp. The inspector sits in front and forwards back to Mosaic, so the profile still leaves from its own exit.How it works

A proxy check result in Mosaic: latency, exit address, ISP, HTTPS tunnelling and reputation — A proxy check: exit address, city and country, latency and reputation, with the time it ran.

One provider from a pasted gateway line, minting a separate session with a different exit for each profile.

Bulk-importing proxies into Mosaic: every line read, new and duplicate ones told apart — Bulk import: every line read, new and duplicate proxies told apart, each one checked after import.

A provider in the Proxies screen: the line it came from, and the sessions it has minted for profiles.

Routing Mosaic launches through Proxyman, Charles or mitmproxy to read their traffic — Settings › Network: route every launch through an inspecting proxy, and the one step to do in it.

Bulk actions500 profiles per batch; start, edit and type into manyCreate up to 500 profiles in a batch with names you choose. Then start, stop, edit, tag and move them together, arrange their windows and type into all of them with human timing.How it works

The profile managerPins, a command palette, columns you choose, fast searchPin the profiles you open daily, jump anywhere with ⌘K, choose which columns show and page through 25 to 200 rows at a time.How it works

Presets and extensionsOne recipe, forty profiles, forty exitsA preset holds a platform, tags, bookmarks, a note, extensions and where the proxy comes from. Each profile it makes mints its own session from your provider.How it works

Projects and tagsFolders of profiles with colours that travelA project is a folder of profiles with its own colour and icon. Tags are coloured per project, and moving a profile carries its tags into the new project.How it works

Warm-up robotA browsing history before the site that mattersThe warm-up robot browses a profile in its own browser, through its own proxy, so it has cookies and history before you sign in anywhere. Mouse and scroll move like a person’s.How it works

Desktop shortcutsOpen one profile from the desktop in one clickA shortcut opens Mosaic for that one profile, without the main window. When the browser closes, Mosaic quits a few seconds later.How it works

Import from other browsersBring profiles from GoLogin, Dolphin, AdsPower and moreMosaic recognises exports from GoLogin, Dolphin Anty, AdsPower, Octo Browser and Multilogin by their shape, and maps each profile across.How it works

Support centreQuestions, bugs and requests from inside the appWrite to support from Mosaic with screenshots attached, and follow the thread in the same window. A person reads each request and answers it.How it works

Six Mosaic profiles selected, with the bulk bar above the table: Start, Stop, Assign proxy, Edit, More and Move to trash — Six profiles selected: start, stop, assign a proxy, edit, move, repair, clear cache or export them at once.

The ⌘K palette over the profile list: new profile, import proxies, every screen, any profile by name.

A Mosaic preset that makes many profiles, each on its own proxy session — A preset that names a provider, a country and a city, so each profile it makes mints its own session.

Mosaic projects: one library split into Client work, Etsy shops and Social team — One library split into projects, each with its own colour, and tags coloured per project.

Warming up one profile: four starting plans or your own list, how many sites, how long on each.

A profile’s menu: Add to desktop and Add to Applications, beside pin, leak test and warm-up.

Contacting Mosaic support from inside the app: a question, an email for the reply and an option to include diagnostics — Contact support from inside Mosaic, with screenshots attached in one click.

Pro REST API

194 routes

A script on your computer does what the window does. Starting a profile hands back a CDP endpoint for Puppeteer or Playwright.

What it does Every route

Pro MCP server

168 tools

Claude, or any MCP client, makes profiles, starts them and reads and clicks the page, with input timed like a person’s.

What it does Every tool

See all 29 features

06 How you start

From this page to your first profile in three steps.

Make a free account

An email and a password, or Google. Free holds 3 profiles with no card; Pro is 14 days free if you want everything at once.

Install and sign in

Drag Mosaic into Applications and sign in. It downloads its own browser once and checks it before unpacking.

Bring your accounts

Paste a proxy or one gateway line from your seller, or import exports from GoLogin, Dolphin Anty, AdsPower, Octo Browser or Multilogin.

Create a free account

07 Pricing

One price for all of them. Free for 14 days.

Pro · one plan14 days free

$49/ month

Free for 14 days, then $49 a month. A card starts the trial, we email you 3 days before the first charge, and if you cancel before day 14 you pay nothing. The thousandth profile costs the same as the first.

Or $490 a year: ten months' price, 2 months free.

Infinite profiles, creations and projects
The REST API and the MCP server
Every engine feature, on the same browser Free runs
Profiles open offline for up to 24 hours

Try Pro free for 14 days

Or stay on Free: 3 profiles and 10 creations, no card, the same engine.

The difference No per-profile pricing

The four we priced bill by how many profiles you keep. We don’t.

Your profiles live on your disk and browse through proxies you pay for, so one more costs us nothing. At 300 profiles, the monthly bill comes to this.

What 300 profiles cost a month, read 2 November 2026

MultiloginBusiness 300$89/mo

GoLoginBusiness 300$99/mo

AdsPowerBusiness 300$86/mo

Dolphin AntyTeam 300$159/mo

MosaicPro, any number$49/mo

Monthly billing, the cheapest plan that holds that many profiles, read on each vendor’s own pricing page on 2 November 2026: Multilogin, GoLogin, AdsPower, Dolphin Anty. Yearly billing is cheaper at all four. GoLogin: shown in euros to a European address, with the same figures. Prices change; check the vendor before you decide.

Try your own number

08 Before you install

Six things to settle before you install.

Will my accounts get banned?

Nobody can promise that, because a ban is the platform’s decision. What Mosaic does control is whether each profile’s fingerprint, exit, clock and cookies agree. They are checked before every launch, and you can run the profile against 49 public detectors and read the verdicts yourself.

Does it run on Windows?

Not yet. Tesseract Chrome, the Chromium every profile runs on, has no Windows build, so there is nothing for a PC to install yet. On a Mac, everything on this page works today.

Can my Mac make Windows profiles?

Yes, and the editor warns you first. A Windows profile gets a Windows GPU, screen and thread count, but its fonts, their metrics and the way text is drawn still come from your Mac, where no setting reaches them. On one Mac, IPHey scored a macOS profile 100 and a Windows one 80, so macOS stays the strongest match.

Where do my profiles live?

In a folder on your computer, encrypted on disk. Our server knows your plan, your computers and when a profile opens, by a random id. Never its name, cookies, proxy or browsing. Exactly what it receives.

I use another anti-detect browser.

Mosaic opens exports from GoLogin, Dolphin Anty, AdsPower, Octo Browser and Multilogin, tells which one made the file from its layout, and carries names, notes, proxies, start pages and cookies across. How importing works.

Can my team share profiles?

No. Mosaic has no seats and no shared workspace, because a profile lives on the computer that made it and both plans run on one computer at a time. If your team needs to share profiles today, a cloud-based tool will suit you better.

09 From the guides

How fingerprints, proxies and accounts work

GuideNovember 4, 2026

Every account its own browser. One price for all of them.

Free holds 3 profiles and 10 profile creations, with no card. Pro is $49 a month for any number, or $490 a year with 2 months free. Try it for 14 days; cancel before day 14 and you pay nothing.