Dual Login
Solutions

One antidetect browser, every multi-account workflow

Affiliate marketing, e-commerce, media buying, social media management, agencies, scraping, crypto and QA all run into the same wall: platforms link accounts by device. Here is how teams solve it with Dual Login.

Every solution below solves the same problem

Platforms do not link accounts by name. They link them by device fingerprint, by IP address and by what is left behind in browser storage. Two accounts opened in the same browser share the same canvas and WebGL output, the same font list, the same clock, the same exit IP and often the same cookies. That is enough to associate them, no matter how careful you are with email addresses and passwords.

So every workflow on this page needs the same three isolation layers: a distinct device identity, a distinct network route, and sealed storage that never bleeds between sessions. Dual Login provides all three per profile — the difference between an affiliate use case and a QA use case is configuration, not architecture.

Device layer

A native fingerprint per profile: canvas, WebGL, audio, fonts, screen, user agent and languages, consistent everywhere including Web Workers.

Network layer

A dedicated HTTP, HTTPS or SOCKS5 proxy per profile, with timezone, locale and geolocation matched to the exit and WebRTC masked.

Storage layer

Cookies, localStorage and cache isolated per profile. Sessions survive restarts and move between machines with the profile.

If you want the mechanics first, read how it works or the fingerprint reference. Otherwise, find your workflow below.

Solutions by industry

Eight workflows teams run on Dual Login every day. Each one comes down to the same three layers, applied to a different platform and a different set of accounts.

Affiliate & performance marketing

Affiliates run the same offer across several networks, traffic sources and geos at once. When those sessions share one browser, the network sees one device behind accounts that are supposed to be independent, and a single flag takes the whole portfolio with it.

  • One profile per network account, with its own cookies and cache
  • Geo-matched proxies so the landing page you see matches the visitor
  • Bulk profile creation from CSV when you scale a campaign out
Affiliate marketing guide

E-commerce & marketplaces

Amazon, eBay, Shopify and Etsy all link sellers by device and network signals, not just by login. Storefronts for different brands, regions or suppliers need to look like separate businesses on separate machines from the very first page load.

  • Separate seller central, storefront and supplier logins per profile
  • Residential or mobile proxies matched to each marketplace region
  • Sessions survive restarts, so you are not re-verifying every morning
Multiple marketplace accounts

Advertising & media buying

Meta, Google and TikTok ad accounts are among the most aggressively linked properties on the web. Buyers who manage multiple business managers, payment profiles or client assets need each one to sit on its own device identity and its own IP.

  • Isolated business manager, ad account and payment sessions
  • Timezone, locale and geolocation follow the proxy exit automatically
  • WebRTC masked to the proxy IP so the real address never leaks
Facebook Ads setup

Social media management

Community managers juggle dozens of handles across TikTok, Instagram, X and LinkedIn. Logging in and out of one browser leaves a shared storage and fingerprint trail that platforms read as one operator behind every handle.

  • A stable, long-lived identity per handle instead of constant re-logins
  • Cookie import and bulk login import to migrate existing accounts
  • Virtual camera for profiles that ask for a liveness or video check
Multiple TikTok accounts

Agencies & client services

An agency holds credentials it does not own. Passing passwords around in chat is the usual failure point, and offboarding a contractor means a rotation across every client. Profile sharing solves the access problem without moving the credentials.

  • Admin, manager and member roles with per-profile access
  • Share a working session without ever revealing the password
  • Activity audit trail showing who opened which client account
Agency workflows

Web scraping & market research

Price monitoring, SERP checks and catalogue research fail on headless stacks that announce themselves through automation flags. A real Chromium engine with a real fingerprint collects the same page a customer would see.

  • Automation over raw CDP or plain HTTP, with navigator.webdriver false
  • Works with Selenium, Puppeteer and Playwright against a real engine
  • Network capture and OCR click for pages that resist selectors
Scraping without blocks

Crypto & Web3 teams

Wallet extensions, exchange logins and testnet activity all sit in browser storage. Running them in one browser links addresses that were meant to stay unrelated, and one compromised tab reaches everything at once.

  • Sealed storage per profile, so extensions and keys never see each other
  • Dedicated proxy per wallet identity, with a consistent exit region
  • Portable sessions you can move to another machine when you travel
Multiple wallet setup

QA, testing & web development

Testing geo-routing, localisation, paywalls or per-account feature flags means controlling the device and the network at the same time. Incognito windows reset storage but keep the same fingerprint and the same IP.

  • Reproducible device profiles across Windows, macOS and Linux builds
  • Check region-specific pricing, content and redirects from any exit
  • Script the whole run and keep the browser indistinguishable from a user
All use cases

Solutions by team size

The isolation model does not change as you grow. What changes is how many profiles you keep open and how many people need access to them.

Solo operator

One person running a handful of accounts, offers or stores.

  • Fast profile creation without a setup project
  • A free plan to prove the workflow before paying
  • Cookie import so existing logins carry over on day one

What matters most: reliable isolation and a browser that opens fast.

Growing team

Two to ten people sharing accounts across shifts or regions.

  • Shared profiles with roles instead of shared password documents
  • Bulk profile creation from CSV as the account list grows
  • Automation for the repetitive parts of the daily routine

What matters most: handover without credential sprawl.

Agency & enterprise

Many operators, many clients, and accountability requirements.

  • Admin, manager and member roles scoped per profile
  • An activity audit trail for client and internal review
  • HTTP and CDP automation wired into existing internal tooling

What matters most: access control and a record of who did what.

Every tier starts on the same free plan — ten profiles, no credit card. Compare the limits and seat counts on pricing.

How a solution is built

Whatever the industry, the setup is the same four steps. Most operators get their first profile running in a couple of minutes.

  1. 1

    Define the identity

    Start from the account you actually need to run: which platform, which region, which team member owns it. A profile in Dual Login is that identity, with its own cookies, localStorage and cache sealed away from every other profile. Nothing is shared between them, so a logout, a cache clear or a flag on one account never touches the rest.

  2. 2

    Assign the proxy

    Attach an HTTP, HTTPS or SOCKS5 proxy, with or without authentication. Dual Login then matches the timezone, locale and geolocation to that exit and masks WebRTC to the proxy address, so the network story and the browser story agree. An account that claims to be in Berlin should not report a New York clock or leak a home IP through a video call API.

  3. 3

    Generate the fingerprint

    The fingerprint is applied natively inside the custom Chromium engine rather than injected with JavaScript. Canvas, WebGL, audio, fonts, screen metrics, user agent, timezone and languages stay internally consistent, and they stay consistent inside Web Workers too, which is where a lot of script-based spoofing falls apart.

  4. 4

    Delegate to the team

    Hand the profile to whoever runs it. Admin, manager and member roles control who can open what, the session moves without the password moving, and the audit trail records who opened which account and when. When someone leaves, you revoke access instead of rotating credentials across every client.

A longer walkthrough of the engine, the proxy handling and the automation surface lives on how it works, and the API reference is in the docs.

What isolation actually changes

The same six workflows, with and without a proper profile boundary.

Workflows, what fails without browser isolation, and what Dual Login provides
WorkflowWhat breaks without isolationWhat Dual Login gives you
Multiple affiliate network accountsNetworks link accounts through a shared device fingerprint and IPOne native fingerprint and one proxy per account, kept consistent
Several marketplace storefrontsShared cookies and cache tie storefronts back to one sellerSealed storage per profile that survives restarts and machine moves
Client ad accounts in an agencyPasswords are copied into chat and never fully rotated after offboardingRole-based profile sharing plus an activity audit trail
Dozens of social handlesConstant logout and re-login churns sessions and triggers verificationA persistent long-lived profile per handle, with cookie import
Price and catalogue scrapingHeadless stacks expose automation flags and get served altered pagesRaw CDP or HTTP automation on a real engine, navigator.webdriver false
Geo and localisation testingIncognito clears storage but keeps the same fingerprint and IPReproducible device profiles behind any proxy exit region

Why teams choose Dual Login

No claims about ban-proofing — just the parts of the product that decide whether a multi-account workflow holds together.

Fingerprints applied in the engine core

Dual Login ships a custom Chromium build that applies the fingerprint natively instead of patching the page with JavaScript. There is no injected script for a detector to notice, and the values hold inside Web Workers.

Per-profile proxies with WebRTC masking

HTTP, HTTPS and SOCKS5, with or without auth. Timezone, locale and geolocation follow the proxy exit automatically and WebRTC is masked to the proxy IP.

Automation over HTTP or raw CDP

Drive profiles with goto, click, type, screenshot, OCR click and network capture from plain HTTP calls, or attach Selenium, Puppeteer or Playwright. navigator.webdriver stays false.

Team roles and an audit trail

Admin, manager and member roles let you share a working session without sharing the password, and every profile action is recorded for review.

Bulk import and migration

Cookie import and export, bulk login import and bulk profile creation from CSV mean an existing account list becomes a working profile set in one pass.

Free plan, all three platforms

Ten profiles free with no credit card, on Windows, macOS and Linux, plus the web console at app.duallogin.com. Pay by card or crypto when you outgrow it.

The full capability list is on features, and a side-by-side against other antidetect browsers is on compare. Questions about limits or payment are answered in the FAQ.

Choosing between these, and what they share

None of the pages below is a different product, and moving between them costs nothing -- the categories exist to shorten your reading, not to divide the software, and the free plan is the same ten profiles whichever page you arrived through -- and nothing you configure in one is lost by approaching it as another, whichever door you came in through.

If you are not sure which of these you are, start with the free plan rather than the question. Ten profiles and a week of use will tell you which constraint binds for your work faster than any amount of reading, and the answer is frequently not the one people expect before they try. Operators who were sure their problem was fingerprints discover it was proxies; teams who came for isolation stay for the access control; researchers arrive for scale and end up caring most about session durability. The product does not mind which door was right -- but your budget will, so let the week tell you.

One more pattern across every solution here: the operations that last treat their setup as inventory. They know, without opening anything, which client owns which workspace, when each account last ran, and what changed before anything broke. They know which profile holds which account, which proxy it rides, which number verified it and when it was last opened -- not because record-keeping is fun, but because every recovery, every audit and every handover starts from that list. The tool keeps notes per profile for exactly this; the habit of filling them in is yours.

A short warning about all of them: none is a configuration you switch on. Each describes a way of working that takes a week to establish and then runs quietly, and the week is not optional in any of them.

If none of the categories above describes you exactly, that is normal and not a problem -- they are entry points rather than product editions, and every one of them runs the same software with the same limits. Pick the closest and adjust; nothing is configured differently underneath, and no plan is tied to a use case.

The solutions above are sorted by industry, role and team size because that is how people arrive. Underneath they are one problem: holding several identities that must not be linked, on platforms whose business depends on linking them, from a device built to be recognisable. What differs between them is not the mechanism but the constraint that binds first -- and knowing which one binds for you is most of the decision.

For a solo operator, the binding constraint is usually proxy budget. The browser subscription is the small half of the cost, and the temptation to economise on addresses is exactly where separation fails -- a flawless fingerprint arriving from an IP shared with fifty other accounts has already answered the question. Start with fewer accounts on better addresses rather than the reverse.

For an agency, the constraint is people, not technology. The failure mode is a shared login: one password the whole team knows, a contractor who leaves with it, and no way to revoke access to one client’s accounts without disrupting everyone. Members with their own credentials and explicit capabilities solve this -- somebody can launch profiles without being able to export cookies, and a departure becomes a row you disable. That matters more than any fingerprint feature the moment a third person is involved.

For research and data work, the constraint is throughput, and the answer is often less browser than people expect. A real browser is the right tool when a site requires one; where plain HTTP will do, it is faster and cheaper. The automation surface exists over both CDP and plain HTTP for that reason -- most work in this area is driven from a script or job runner rather than a browser-automation framework, and forcing a driver dependency into that stack is how projects stall.

For development and QA, the constraint is repeatability. Profiles are valuable here less for isolation than for determinism: a dozen clean, reproducible browser states with known fingerprints, timezones and locales, on demand, without maintaining a rack of virtual machines. The fingerprint stability that matters commercially elsewhere is what makes a test meaningful here.

One question cuts across all four and is worth settling early: how much of this should be automated. The instinct at scale is to script everything, and it is usually wrong at the start -- automation multiplies whatever pattern it is given, including a bad one, and twenty accounts moving in perfect synchrony are easier to spot than twenty moving by hand. The order that works is to run the process manually until it is boring, then automate the boring part, then vary the timing deliberately.

What all four share is that the hardware sets the real ceiling. Every profile is a genuine browser process with its own data directory -- around five concurrent per 4 GB -- so a plan’s profile count describes how many identities you may store, not how many browsers your machine will hold at once. Whichever solution above matches your work, size the machine for the number you need open simultaneously, not the number you own.

Build your solution on the free plan

Ten profiles, no credit card, on Windows, macOS and Linux. Create a profile, attach a proxy, import your cookies and see whether the workflow holds before you pay for anything.

Prefer the desktop app? Download Dual Login for your platform.