A separate session in every tab
Each tab keeps its own cookies, storage, proxy, fingerprint and timezone. Nothing crosses between them, even in the same window.
From the team behind Unknown Proxies · Now in early access
Every tab wears
its own mask.
Unknown Browser is a multi-session browser that runs each tab as its own session, with its own proxy, cookies, fingerprint and timezone. Work across all your accounts from one window.
account.example.com/dashboardIsolated
Signed in as
Proxy exit
New York
IP address
198.51.100.24
Local time
--:--:--
Timezone
--
Own cookiesOwn storageOwn proxyOwn fingerprint
What is a multi-session browser?
A regular browser shares your cookies across every tab, so logging in to a second account on a site replaces the first. If you manage several accounts, that means separate windows, separate profiles, or signing in and out all day.
A multi-session browser keeps each tab apart. Unknown Browser goes further and gives every tab its own proxy and timezone as well, so each session has its own network exit and settings instead of sharing yours.
One window. A different exit for every tab.
Send each tab through its own proxy, wherever you need it to be, and see where it comes out without leaving the window you are in.
Set up once. Open everything.
- 1
Build your profiles
Create a profile for each account by hand, or import a whole list from a CSV. Each one holds its own cookies, proxy, fingerprint and timezone.
- 2
Assign your proxies
Paste your proxy list into the browser and give each profile its own exit. Status indicators show which proxies are working.
- 3
Open them side by side
Open as many profiles as you need as tabs in one window. Each tab stays logged in to its own account, with nothing shared between them.
One browser. As many sessions as the job takes.
Profiles that stay the same
Save a profile once and it comes back identical every time. Create them in bulk from a CSV and sort them with tags.
Your proxy list, built in
Paste in your proxies, give each tab its own exit, and see which ones are working without opening another tool.
Every session at a glance
See every open tab across every window: its profile, where it exits and which session it shares. Jump to any of them in a click.
Timezone that follows the proxy
Each session's timezone and location settings line up with its proxy exit, so you are not setting them by hand for every profile.
Login codes where you need them
Keep email and authenticator codes next to the login that asks for them, instead of switching between apps and inboxes.
Ready for a team
Back up profiles in encrypted form and hand selected ones to a teammate, so nobody has to rebuild a setup from scratch.
Familiar from the first tab
Built on Chromium, so sites, shortcuts and the browser layout work the way you already expect.
Ad blocking included
Built-in content blocking keeps pages lighter when you have a lot of them open, with no separate extension to set up.
Why not just use incognito or Chrome profiles?
They separate some of your accounts, some of the time. Here is where each one stops.
| Feature | Regular tabs | Incognito | Chrome profiles | Unknown Browser |
|---|---|---|---|---|
| Separate login in each tab | No | No | No, per window | Yes |
| A different proxy per tab | No | No | No | Yes |
| A different timezone per tab | No | No | No | Yes |
| Sessions saved between launches | Shared | No | Yes | Yes |
| Everything in one window | Yes | No | No | Yes |
| Bulk profile import | No | No | No | Yes |
Who it's for
Ticket brokers
Work across your own accounts on sale day, with seat maps shaded by price and cart timers on the tab.
Agencies
Keep every client's logins apart, so one client's session never touches another's.
Social media teams
Stay logged in to every brand account you manage at once, without signing in and out.
Ad operations
Run client ad accounts side by side and check how campaigns look from different locations.
QA and testing
Test as several users in several regions at once, with no need for extra machines or browser installs.
Market research
See the prices, listings and results that a site shows to visitors in different places.
Made for long days on sale.
Small tools for the work between opening a tab and checking out.
Seat maps by price
Shade an event map by price range so the sections worth a look stand out straight away.
Cart timers on the tab
See how long each cart has left without clicking back through your tabs to check.
Notes and a clipboard
Keep sticky notes on a profile and your common details close at hand.
Page watch
Get an email when a page you are watching changes, so you can stop refreshing it.
Pair it with Unknown Proxies.
A browser that separates your sessions needs clean exits to send them through. Unknown Proxies offers ISP and residential plans.
Questions
What is a multi-session browser?
A multi-session browser lets you stay logged in to several accounts on the same site at the same time. Regular browsers share cookies across tabs, so a second login replaces the first. A multi-session browser keeps each tab's session separate.
What is Unknown Browser?
A desktop browser for people who run many accounts at once. Every tab is its own isolated session, with its own proxy, cookies, fingerprint and timezone, so you can work across all of them from one window.
Who is Unknown Browser for?
Ticket brokers, agencies, ad and social media teams, QA testers, researchers and anyone else who has to keep work accounts properly separate.
How is it different from incognito mode?
Incognito windows share one session with each other and forget it when you close them. Unknown Browser keeps a separate session per tab and saves it to a profile, so it is still there next time.
How is it different from Chrome profiles?
Chrome profiles separate accounts by window and have no per-tab proxy setting. Unknown Browser separates them by tab, each with its own proxy and timezone, all in one window.
Can I use a different proxy in each tab?
Yes. That is the core of the browser. You keep a proxy list inside it and give each tab or profile its own exit.
How do I get it?
Unknown Browser is in early access. Join the Unknown Discord and ask about getting on the list.
What are the rules for using it?
Use it lawfully and within the terms of the sites you visit. Keeping your own accounts separate is the point. Fraud and account abuse are not.