Why your privacy is at risk
Every time you visit a website, your browser exposes a detailed fingerprint — your screen resolution, graphics card output, installed fonts, timezone, language, CPU cores, available memory, audio processing characteristics, and dozens more. Combined, these signals create a unique identifier that follows you across the web, even if you clear cookies, use incognito mode, or switch networks. Studies have shown that browser fingerprints are unique for over 90% of users.
Donut Browser takes a fundamentally different approach to privacy. Instead of trying to block fingerprinting scripts (which breaks websites and is easily detected), it gives each profile a complete, realistic fingerprint that looks like a real device. Over 50 parameters are spoofed — Canvas, WebGL, AudioContext, WebRTC, fonts, screen dimensions, hardware specs, User-Agent, Client Hints, and more. Each profile appears as a genuinely different person on a genuinely different computer.
Donut Browser collects zero telemetry. There are no analytics, no usage tracking, and no data sent to any server. All profile data is stored locally on your machine. The Donut Browser app is open source under the AGPL-3.0 license — the profile manager, API server, and sync service are all on GitHub for anyone to inspect.
Key Features
Complete Profile Isolation
Each profile has its own cookies, local storage, session storage, IndexedDB, cache, and browsing history. Cross-site tracking between profiles is impossible — there is no shared data at any level. Use different profiles for shopping, banking, social media, and personal browsing.
50+ Spoofed Fingerprint Parameters
Each profile gets a unique fingerprint covering Canvas rendering, WebGL output, AudioContext properties, screen dimensions, hardware concurrency, device memory, installed fonts, User-Agent, Client Hints, timezone, language, media devices, battery status, and more. Fingerprints pass checks on Pixelscan, IPHey, CreepJS, and BrowserLeaks.
VPN & Proxy Per Profile
Assign per-profile VPN connections (WireGuard or OpenVPN) or proxies (HTTP, HTTPS, SOCKS4, SOCKS5). Each profile can appear to be in a different location. Combine with fingerprint protection for both IP and identity isolation.
Open Source & Zero Telemetry
The Donut Browser app is published on GitHub under AGPL-3.0. There are no analytics, no crash reporters, no usage tracking, and no data collection of any kind. The app where your data is stored and processed is fully auditable.
WebRTC Leak Prevention
WebRTC can expose your real IP address even when using a VPN. Donut Browser blocks WebRTC leaks per profile and can spoof local IPv4 and IPv6 addresses, preventing websites from discovering your real network identity.
Ephemeral Profiles
Create temporary profiles that are cleaned up after use. Ideal for one-time browsing sessions where you want zero trace left behind. No cookies, no history, no fingerprint persistence.
How Donut Browser Compares to Other Privacy Tools
Most browsers offer limited privacy controls that leave you exposed to fingerprinting and cross-session tracking. Donut Browser gives you granular control over what information you share with every website you visit.
 Donut Browser | Regular Browser | |
|---|---|---|
| Fingerprint Protection | Unique, realistic fingerprint per profile covering 50+ parameters — Canvas, WebGL, AudioContext, fonts, hardware, and more | Same fingerprint across all sessions — websites recognize you every time, even in incognito mode |
| Cookie Isolation | Fully separate cookie jars per profile — no data leaks between profiles | Shared cookies across tabs, or cleared entirely in incognito — no way to maintain separate sessions |
| Cross-Session Tracking | Impossible — each profile is a distinct, unconnectable identity | Trivial via browser fingerprinting, even in private browsing mode |
| Multiple Identities | Unlimited profiles, each with its own fingerprint, cookies, storage, and optional proxy | One identity per browser — logging into another account means logging out first |
| WebRTC Leak Prevention | Per-profile WebRTC blocking and IP spoofing — real IP never exposed | WebRTC leaks your real IP address even when using a VPN |
| VPN / Proxy Support | Per-profile proxy (HTTP, SOCKS5) and VPN (WireGuard, OpenVPN) — each profile can be in a different location | VPN is system-wide only; proxy support is global and applies to all browsing |
| Telemetry & Data Collection | Zero telemetry, verifiable in the open source app code — no data collected | Many popular browsers collect usage data, browsing history, and crash reports |
| Source Code Transparency | App source code on GitHub under AGPL-3.0 — profile manager, API, and sync are auditable | Closed source — you must trust the vendor's privacy claims |
Core Features — Always Free
Everything you need to get started, without creating an account
FAQ
