Guide · Multi-account browsers
Antidetect Browsers Explained: Run Unlimited Accounts on One Computer
An antidetect browser gives every account its own browser profile with separate cookies, its own device fingerprint, and its own proxy IP. A website then sees each account as a different visitor on a different device, so it cannot link the accounts through the browser. This guide shows how that works, which providers exist, and why we built a free one called AliasMode.
Published September 20, 2026 · Last reviewed September 20, 2026
How websites link multiple accounts
Websites do not need your name to know that two accounts belong to the same person. They compare three signals: the cookies and storage left in your browser, the IP address your traffic comes from, and the fingerprint of your device.
A match on one signal is often enough. When accounts are linked, a limit or a ban on one of them usually reaches the others too.
Cookies and storage
Small files a site leaves in your browser. They stay after you log out, and they tie every login to the same browser.
IP address
Your network address. Every account you open from the same connection shares it.
Browser fingerprint
Dozens of details about your device and browser. Together they identify the machine, with no cookies needed.
What is a browser fingerprint? See yours
A browser fingerprint is the set of details your browser gives to every page: user agent, screen size, timezone, languages, CPU cores, GPU, and how your machine draws a test image on a canvas. Each value is ordinary. The combination is close to unique.
The panel below is live. It reads these values from the browser you use right now, without cookies and without a permission prompt. Some privacy browsers hide the GPU, and the panel tells you when that happens.
- user agent
- Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/140
- screen
- 1920 × 1080 @ 1x
- timezone
- Europe/Berlin
- languages
- de-DE, de, en
- gpu
- ANGLE (NVIDIA GeForce GTX 1660 Direct3D11)
- canvas hash
- 7c1e90af
- Any page can read these values with a few lines of JavaScript.
- No permission prompt. No cookie.
- Clear history, open incognito, make a new account: the ID stays the same.
Why incognito mode, Chrome profiles, and VPNs do not separate accounts
Each common fix changes one signal and leaves the other two in place. Incognito mode and a second Chrome profile give you separate cookies, but the IP address and the fingerprint stay the same. A VPN changes the IP address only.
An antidetect browser profile is the only option in this table that changes all three signals at the same time, and keeps them changed.
| Method | Cookies | IP address | Fingerprint |
|---|---|---|---|
| Log out, clear cookies | ✓ Cleared | ✕ Same | ✕ Same |
| Incognito window | ✓ Separate | ✕ Same | ✕ Same |
| Second Chrome profile | ✓ Separate | ✕ Same | ✕ Same |
| VPN | ✕ Same | ✓ Changed | ✕ Same |
| Antidetect profile | ✓ Separate | ✓ Own proxy | ✓ Own fingerprint |
Each common fix changes one signal. An antidetect profile changes all three at once, and keeps them changed.
How an antidetect browser works
An antidetect browser is a normal Chromium browser with a profile manager on top. You create one profile per account, and each profile opens in its own window.
Every profile carries three layers. Storage keeps the cookies and logins of that account. The fingerprint describes one believable device. The network layer sends the traffic through one proxy, so the account has its own IP address and location. We use dedicated static residential proxies from NobleProxy for that layer.
A normal Chromium browser with a profile manager on top. You create one profile per account, and each profile carries three layers.
Its own data folder. Logins stay signed in between sessions.
Its own device description, fixed when the profile is created.
Its own proxy, so its own IP address and location.
How profile isolation works
Isolation means nothing is shared. Each profile runs as its own browser process, reads and writes its own data folder on disk, presents its own fingerprint, and leaves through its own proxy.
There is no common cookie jar and no common cache. At the end of each lane, the website receives a visit that has nothing in common with the other two.
What the website sees: normal browser vs antidetect profiles
Use the switch to compare both cases. In a normal browser, three accounts show the same cookies, the same IP address, the same GPU, and the same fingerprint ID, so the site ties them together.
With antidetect profiles, every row is different. It is the same person on the same computer, but the accounts share no signal.
Why fingerprint consistency matters
Random values are easy to spot. A Windows browser that reports an Apple GPU and macOS fonts does not exist in the real world, and a German IP address with a Tokyo clock tells two different stories.
A good profile is coherent, stable, and matched to its proxy. It describes one real device, it shows the same device in every session, and its timezone and language agree with the location of the IP address. The goal is to look ordinary.
- user agent
- Windows 10 · Chrome
- gpu
- Apple M2
- fonts
- SF Pro, Helvetica Neue
- timezone
- Asia/Tokyo
- proxy ip
- Germany
- language
- pt-BR
- user agent
- Windows 10 · Chrome
- gpu
- NVIDIA GTX 1660
- fonts
- Segoe UI, Calibri, Arial
- timezone
- Europe/Berlin
- proxy ip
- Germany
- language
- de-DE
Coherent
Every value fits the same real-world device.
Stable
The profile shows the same device every session, like a real user.
Matched to the proxy
Timezone, language, and location agree with the IP address.
Who uses antidetect browsers
Most users are teams with a normal business reason to hold many accounts. Agencies keep client accounts apart. Sellers run several storefronts. Social media teams manage brand and regional accounts. Outreach teams work with many sender accounts on X, LinkedIn, and Telegram.
QA and ad verification teams use profiles to see a page the way visitors in other countries see it. The newest group is AI agents, which need one clean browser per task.
Agencies
Client social and ad accounts, each kept apart from the others.
E-commerce sellers
Several storefronts and marketplaces from one office.
Social media teams
Brand, regional, and campaign accounts on the same platform.
Outreach and growth
Sender accounts across X, LinkedIn, and Telegram.
QA and ad verification
See a page the way visitors in other countries see it.
AI agents and automation
One clean browser per task, driven by Playwright or an agent.
Antidetect browser providers compared: Multilogin, GoLogin, AdsPower, Dolphin Anty, Octo Browser
The established providers are all paid products. Their free plans stop at two to five profiles, and Octo Browser has no free plan. Each one does something well, and the table lists it.
The common pattern is the reason we built our own tool: every one of them charges by profile count, keeps its code closed, and runs inside a vendor account.
| Provider | Pricing | Known for |
|---|---|---|
| Multilogin | Paid, from $11/mo for 10 profiles. Free plan capped at 5. | Cloud phones, bundled proxy traffic |
| GoLogin | Paid by profile count. Free plan capped at 3. | Cloud Browser, SDKs |
| AdsPower | Paid by profile count. Free plan capped at 2. | Complete Local API, built-in automation |
| Dolphin Anty | Paid, from $10/mo for up to 60. Free plan capped at 5. | Team roles, built-in automation |
| Octo Browser | Paid, from €10/mo for 3 profiles. No free plan. | Fingerprint engine, fast kernel updates |
Pricing checked on each vendor's pricing page, 2026-09-19. Monthly billing, lowest paid plan.
Why we built AliasMode
We are the Xreacher team, and browser profiles are a daily tool for our outreach work. Three things kept getting in the way: a bill that grows with every profile, closed code that holds every session cookie we own, and a vendor account that is required even for purely local work.
So we built the browser profile manager we wanted, and made it free.
We are the Xreacher team. We run outreach across X, LinkedIn, and Telegram, so browser profiles are a daily tool for us.
Three things kept getting in the way. So we built the tool we wanted, and made it free.
You pay per profile
Every new account raises the bill. Growth gets taxed.
The code is closed
The app holds every session cookie you own, and you cannot read it.
An account is required
Even purely local work runs inside the vendor's account and cloud.
AliasMode: a free, open-source antidetect browser
AliasMode answers the three problems in order. Profiles are unlimited and free. The desktop app is open source under Apache-2.0, so you can read the code that holds your sessions. Local mode needs no account and sends nothing to AliasMode servers.
It also includes free team sync, an AdsPower-compatible Local API with Playwright over CDP, and an MCP server so that Claude, ChatGPT, and Codex can create profiles and drive the browsers. It is a Windows beta today.
Unlimited profiles
Every feature is free, in Local and in Cloud. Support is the only paid service.
Open-source desktop app
Read the code that holds your sessions. Dashboard, runtime, API, and MCP server are public.
No account needed
Profiles stay on your computer. Nothing goes to AliasMode servers.
Free team sync
A shared workspace with owner and member roles, portable profiles, and device revocation.
Drop-in automation
An AdsPower-compatible Local API, plus Playwright over CDP.
Built for AI agents
Claude, ChatGPT, and Codex can create profiles and drive the browsers.
AliasMode vs paid antidetect browsers
The short comparison has three questions. How many profiles are free, can you read the source code, and can you work locally without a vendor account.
Free-plan caps and prices were checked on each vendor's pricing page on 19 September 2026. Plans change, so confirm them before you buy.
| Product | Free profiles | After that | Source code | Local use, no account |
|---|---|---|---|---|
| AliasMode | Unlimited | Still free | ✓ Apache-2.0 | ✓ Yes |
| Multilogin | 5 | Paid, from $11/mo | ✕ Closed | ✕ Account |
| GoLogin | 3 | Paid by profile count | ✕ Closed | ✕ Account |
| AdsPower | 2 | Paid by profile count | ✕ Closed | ✕ Account |
| Dolphin Anty | 5 | Paid, from $10/mo | ✕ Closed | ✕ Account |
| Octo Browser | 0 | Paid, from €10/mo | ✕ Closed | ✕ Account |
Free-plan caps and prices checked on each vendor's pricing page, 2026-09-19. Source and account model checked 2026-08-10.
Frequently asked questions
What is an antidetect browser?
An antidetect browser is a Chromium-based browser that manages many isolated profiles. Each profile has its own cookies and storage, its own device fingerprint, and its own proxy, so a website sees each profile as a separate visitor on a separate device.
Is an antidetect browser the same as a VPN or incognito mode?
No. A VPN changes only your IP address. Incognito mode separates only cookies, and only until you close the window. An antidetect browser separates cookies, IP address, and fingerprint together, and keeps each set stable for one account.
Are antidetect browsers legal?
Yes, the software is legal. Agencies, e-commerce sellers, QA teams, and ad verification teams use it every day. Some platforms limit how many accounts one person may hold, so read the terms of each platform you work on.
Is there a free antidetect browser?
Most providers offer a free plan with two to five profiles. AliasMode is free with unlimited profiles, and its desktop app is open source under Apache-2.0. It is a Windows beta.
Do I need a proxy for every profile?
Yes, for accounts that you want to keep. Without a proxy, every profile still shares your IP address. Use one dedicated static proxy per profile and keep it for the life of the account.
Xreacher
Run outreach from the accounts you manage
Xreacher sends DM campaigns across X, LinkedIn, and Telegram from many sender accounts on a daily schedule. Connect your accounts and start with a free trial.
Start a free trialTools in this guide
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- Static residential proxies for multiple social accounts
- Twitter DM automation
Disclosure: the Xreacher team builds and maintains AliasMode. Xreacher recommends NobleProxy based on customer experience using proxies with Xreacher. This is a field-tested recommendation, not an independent lab ranking. Using several accounts can be against a platform's terms. Check the rules of each platform you work on.