For anyone who runs more than one account on the same site

Run unlimited accounts in their own browsers.

Sites read your device, from the screen to the graphics card and the time zone, and use it to tie accounts together. Each Donut profile carries its own fingerprint, cookies and proxy, so every account arrives as a different visitor.

  • Unlimited local profiles, free
  • A fingerprint generated per profile
  • Time zone and language follow the proxy
Four profiles on one Windows computer open the same site. The site records four visitors, each with a different screen, graphics card, time zone, language and canvas hash.

What each profile keeps to itself

A profile is a whole browser of its own, not a tab with a different cookie jar.

  • Fingerprint

    Generated for the profile and applied inside the Wayfern engine, not by scripts in the page.

  • Cookies and storage

    Logins, local storage and history stay in the profile’s own folder.

  • Proxy or VPN

    HTTP, HTTPS, SOCKS4, SOCKS5 or WireGuard, set per profile.

  • Time zone and language

    Taken from the proxy’s exit at launch, so they match the IP.

  • Extensions

    Installed per profile, or assigned to many at once with extension groups.

  • A password

    Set one, and the profile’s files are encrypted on disk.

Questions, answered.

How many browser profiles can I have?
Unlimited. Donut Browser does not cap profile count on any plan. Disk space is the only ceiling on creation; RAM and CPU are the ceiling on how many you can run at the same time.
Is this really a free multi-account browser, or is there a catch?
Genuinely free. Unlimited local profiles, device identity generation, and proxy support cost nothing. There is no per-profile fee, no profile cap, no signup, and no trial timer. Paid plans only unlock optional extras like browser automation, encrypted cloud sync, and team sharing.
How is Donut Browser a MultiLogin alternative?
MultiLogin runs your profiles through its own cloud and charges per profile and per seat. Donut Browser is a private, local-first MultiLogin alternative: unlimited profiles, no per-profile fee, and open source under AGPL-3.0, with every profile and cookie kept on your own machine. It covers the same multi-account workflow without handing your sessions to a vendor's servers.
How does Donut compare to AdsPower, GoLogin, Dolphin Anty, Incogniton, and Kameleo?
Those are all subscription anti-detect browsers; most cap free profiles at 5 to 10 and meter the rest. Donut Browser has no subscription and no profile cap. The AGPL-3.0 source is on GitHub, so you can verify what the app actually does with your data before trusting it with accounts.
Best free multi-account browser for running multiple accounts on one browser?
Donut Browser is built specifically for running multiple accounts in one browser without them being linked. Each profile gets its own device identity, cookies, storage, and optional proxy. Open as many side by side as your hardware allows; there's no limit baked into the app.
Are profiles truly isolated from each other?
Yes. Each profile is a completely independent browser environment with its own cookies, storage, cache, history, and device identity. A site loaded in one profile cannot see or touch data from any other profile, even when both are open at the same time.
What platforms can I run multiple accounts on?
Anything that runs in a web browser: social platforms, marketplaces, ad networks, email providers, SaaS dashboards. Each profile presents as a different user on a different device, so the isolation works the same way no matter what site you load.
Does running many profiles at once slow my machine down?
Each profile is a separate browser process, so RAM and CPU scale with how many you open at once. On a modern laptop with 16 GB of RAM, 6 to 10 active profiles with multiple tabs each is comfortable. Closed profiles keep all their session data for next launch.
Can I import profiles from MultiLogin, AdsPower, or another anti-detect browser?
You can import cookies into Donut profiles to carry sessions over without re-logging in, which sidesteps the new-device security checks platforms trigger on fresh logins. Native imports from Chrome, Edge, and Brave are also supported in one click.
Is it really open source and free forever?
Yes. The Donut Browser app is open source under AGPL-3.0. The full source is on GitHub, so you can audit how profiles, cookies, and device identities are handled. The free plan does not expire and is not a trial.
Does Donut Browser support team collaboration?
Yes, on the Team plan. Share profiles with teammates via encrypted cloud sync; isolation between profiles is preserved per device, and profile locking prevents two people from editing the same profile at once.

As many accounts as you need, each in its own browser.

Unlimited local profiles cost nothing. Pro adds fingerprint editing, fingerprints for other operating systems, and the automation API.