Each profile is its own browser.
BrowserRoster runs isolated browser profiles with independent cookies, storage, device fingerprint, and network identity, built for agencies running ad verification, QA testing, and multi-account marketing.
Built for teams that run dozens of accounts.
Every feature exists to keep profiles fully separated, at the session, network, and fingerprint layers.
Isolated profiles
Cookies, localStorage, IndexedDB, service workers, and cache. Each profile sees only its own. Nothing crosses, ever.
Device fingerprint per profile
Canvas, audio, WebGL, fonts, navigator, screen, client hints. Every signal is independent and deterministic per profile.
Proxy per profile
Bind each profile to its own HTTP, HTTPS, or SOCKS5 proxy. Configure per-session or pin permanently.
Team collaboration
Share profiles across your team with role-based access. Full audit log of who launched which profile, when.
Encrypted at rest
Profile data (cookies, history, credentials) encrypted locally with your key. We can't read your sessions.
Cross-platform
Windows, macOS, and Linux builds from the same Chromium fork. Same profile, same fingerprint, anywhere.
Built at the engine level, not patched at the tab.
Most multi-profile tools spoof at the JavaScript layer. They inject overrides into the page after it loads. Anything that runs first sees the underlying machine.
BrowserRoster is a forked Chromium build with native C++ patches at the rendering engine. Canvas, audio synthesis, WebGL adapter strings, font metrics, navigator surfaces, screen geometry. All consistent and isolated before any page script executes.
- Consistent per-profile, deterministic across launches
- No JavaScript override layer, so nothing to detect
- Patches gated on a per-profile config, not global flags
- Same fingerprint across Windows, macOS, and Linux builds
// Profile config (excerpt)
profile {
id = "profile_02"
os = "macOS 15.1"
user_agent = "Mozilla/5.0..."
timezone = "Europe/London"
// engine-level overrides
canvas = { noise: "f3104d22" }
audio = { latency: 0.00267 }
webgl = { vendor: "Apple", renderer: "M3" }
fonts = [ "SF Pro", "Helvetica" ]
proxy = "socks5://uk-01"
}
Who uses BrowserRoster.
Three core workflows. Same product underneath.
Ad verification
Run real ad placements across geographies and device profiles. See exactly what your ads look like to a Pixel user in Tokyo vs. a MacBook user in Toronto.
For ad ops & verification teams
QA testing
Test web applications across user types, regions, and device fingerprints without spinning up VMs or buying a stack of devices.
For engineering & QA teams
Multi-account marketing
Manage dozens of legitimate brand accounts across social platforms, marketplaces, and ad networks, each in its own sealed environment.
For agencies & marketers
Ready to manage profiles like a roster?
Join the private beta. Pricing tiers from solo operators to multi-seat agencies.