Multi-Account Management

Run unlimited isolated browser profiles from one device

Why managing multiple accounts is hard

When you log into the same platform from two browser windows, the platform knows it is the same person. This is not just about cookies — modern platforms collect a browser fingerprint made up of your screen resolution, installed fonts, graphics card output, timezone, language settings, and dozens of other signals. Together, these create a unique identifier that persists even after you clear cookies or switch to incognito mode.

Donut Browser solves this by running each account in a fully isolated profile. Every profile gets its own cookies, local storage, cache, and a unique browser fingerprint that covers over 50 parameters — from Canvas and WebGL rendering to User-Agent strings and hardware specs. To any website, each profile looks like a completely different person on a completely different computer.

Donut Browser is free and runs entirely on your machine. There are no profile limits, no cloud dependency, and no telemetry. You can run multiple profiles simultaneously — the only limit is your hardware. The Donut Browser app is open source under the AGPL-3.0 license, so you can inspect the code on GitHub and verify how your data is handled.

Key Features

Unlimited Local Profiles

Create as many browser profiles as your hardware can handle. Each profile is a fully independent browser instance with its own cookies, local storage, session storage, IndexedDB, cache, and browsing history. Nothing is shared between profiles.

Unique Fingerprints Per Profile

Each profile receives a unique browser fingerprint covering over 50 parameters — including Canvas rendering, WebGL output, AudioContext, screen dimensions, hardware concurrency, device memory, installed fonts, and User-Agent strings. Fingerprints are generated to match real device configurations, so they pass detection checks on sites like Pixelscan, IPHey, CreepJS, and BrowserLeaks.

Tags, Groups & Organization

Organize profiles with tags and groups. Keep work accounts, personal accounts, and client accounts in separate groups. Filter and search profiles instantly from the dashboard. Assign colors and notes to profiles for quick visual identification.

Proxy Per Profile

Assign a different proxy to each profile — HTTP, HTTPS, SOCKS4, or SOCKS5 with optional authentication. Each profile can appear to be in a different geographic location. Proxy settings persist across sessions, so your IP stays consistent every time you launch.

Import Existing Profiles

Import profiles directly from Chrome, Firefox, or Brave. Migrate your existing sessions, bookmarks, saved passwords, and extensions without logging in again — avoiding security triggers that come with signing into an account from a new device.

Cross-Device Sync

Optionally sync profiles across devices with end-to-end encryption. Your sync password never leaves your machine, and all profile data is encrypted before upload. Available on the Pro plan.

How It Works

1

Create a Profile

Click "New Profile" and choose your browser engine — Camoufox (Firefox-based) or Wayfern (Chromium-based). Optionally assign a proxy, add tags for organization, and join a group. The entire setup takes seconds.

2

Automatic Fingerprint Generation

Donut Browser automatically generates a unique, realistic fingerprint for the profile. Over 50 parameters are set — Canvas, WebGL, AudioContext, User-Agent, screen resolution, fonts, hardware specs, and more. The fingerprint is internally consistent and matches real-world device configurations.

3

Launch and Work

Launch any profile from your dashboard. Each profile opens in its own browser window with its own session. Run as many profiles side by side as your hardware allows. All session data — cookies, login state, browsing history — persists between launches automatically.

Core Features — Always Free

Everything you need to get started, without creating an account

Set as Default Browser
Proxy Support (HTTP/SOCKS5)
VPN Support (WireGuard, OpenVPN)
Unlimited Local Profiles
Profile Management API & MCP
Open Source

FAQ

Frequently Asked Questions