Anti-detect browser with unlimited profiles: six, compared

We make Mosaic. We tried to be fair; corrections to hello@mosaicbrowser.com.

Look for an anti-detect browser with unlimited profiles and the phrase turns up on half the pricing pages in this category, rarely meaning the same thing twice. We read six of them on 2 November 2026. In most, the profile count is unlimited because the vendor meters something else: how many you create per day, how many you open, how many run at once, or how many live in its cloud. That is a fair way to price, as long as you know which meter you are on before you build a library of 400 profiles around it.

Which anti-detect browser with unlimited profiles is really unlimited?

Six products say so on their own pricing pages. The column that matters is the right-hand one.

	Unlimited on	What is metered instead	Entry price for unlimited
Mosaic	Pro	Nothing per profile; your machine's memory	$49/mo
Donut Browser	Free	Local only; cloud backups and sync are paid	$0
ixBrowser	Every plan	Creations and launches per day, team seats	$0 (10 creations, 100 launches a day)
Kameleo	Every plan, local	Browsers running at once; cloud profiles	€0 (2 running), €59 (10 running)
Undetectable.io	Paid plans, local	Cloud profiles and users	$34/mo (Base)
Dolphin{anty}	Custom plan	Priced per 100 or 1,000 profiles, on request	Quote

Multilogin is the useful control here. It does not claim unlimited: its Business plan is priced by profile count all the way up, with 10,000 profiles listed at $900 a month billed monthly. That is the per-profile model in its plainest form, and every row above is a different answer to it.

How it works: Local first

What does each "unlimited" really cover?

Donut Browser

The free plan lists unlimited local profiles, a profile management API and no account requirement. The app is open source under AGPL-3.0. Paid plans start with Solo at $29 a month, which adds cloud profile backups and a cookie bot, and its Pro plan at $99 lists "fingerprints for other systems". If your profiles stay on one computer and you are comfortable with an open-source project's pace, it is the most generous free tier here.

ixBrowser

Every plan, including Free, shows "Unlimited" in the browser profiles row. The meter is the next two rows. Free allows 10 profile creations and 100 profile opens per day; Professional at $3.99 a month raises that to 100 and 1,000; Enterprise at $19.99 allows 1,500 creations and 15,000 opens a day. For a library you build once and open a few times a day, the caps may never bite. For a batch of 300 new profiles on Monday morning, they will.

Kameleo

Kameleo says it plainly: "There's no limit on local profile storage", and it bills by concurrent browsers. Free runs 2 at once with 300 minutes of browser time; Startup at €59 a month runs 10, with unlimited browser time and 5,000 cloud profiles. This suits automation that opens a few profiles at a time from a large pool. It suits badly someone who wants 30 windows open across a working day.

Undetectable.io

Local profiles are "unlimited on any paid plan". The plans differ by cloud profiles and users, starting at Base for $34 a month. Its pricing FAQ adds one condition worth reading before you commit: if you drop to the free plan, access to local profiles is suspended until the licence is paid.

Dolphin{anty}

The standard plans stop at fixed counts (Starter up to 60, Base 100, Team 300). Unlimited browser profiles appear on the Custom plan, priced per 100 or 1,000 profiles on request. So it is unlimited in the sense that there is no ceiling, not in the sense that the price stops moving.

Where Mosaic fits

Mosaic Pro does not charge per profile. The 1,000th profile costs the same as the first: Pro is $49 a month, one plan, everything unlimited, and you can try it free for 14 days. Free is 3 profiles and 10 profile creations, with no REST API or MCP.

The reason we can price it that way is the same reason Mosaic is local-first. A profile is a folder on your disk, its fingerprint is drawn on your machine, and its browser runs on your processor. Profiles, projects and API calls run on your own computer, so giving away the hundredth one costs us nothing. A product that stores every profile in its own cloud has a real cost per profile, and pricing by count is the honest response to that.

So Mosaic has a meter too, and it is yours: memory. Every running profile is a full Chromium, and a laptop that handles 15 open windows comfortably will not handle 150. Settings › General can cap how many run at once, so a bulk start does not take the machine down.

Three things make a large library workable rather than just allowed. Batch creation makes up to 500 profiles in one go. A proxy provider saved from one pasted gateway line mints a separate session for each of them, so 500 profiles do not leave from one exit. And the tables page at 25, 50, 100 or 200 rows, with projects and tags to split clients apart.

What unlimited does not buy you

Nothing in this table removes the need for one exit per account. An unlimited library behind a single proxy is one address with many cookie jars, and the address is the first thing a site compares. Proxy traffic is the cost that really grows with your profile count, and Mosaic does not sell it: you bring your own seller.

Mosaic also lacks things some of these products include. It has no team seats, no cloud copy of profiles and no way to open a profile from a second computer. A Mac can make Windows profiles, but they match less well than macOS ones, because a profile's fonts come from the machine it runs on. If your team shares a library across laptops, a per-seat plan from the roundup of anti-detect browsers will fit better, whatever it charges per profile.

How to pick

• A big library, opened a few at a time by scripts: Kameleo's concurrency pricing.
• A big library on one computer, free, open source: Donut Browser.
• Cheap, with daily creation caps you can live with: ixBrowser.
• Unlimited local plus some cloud profiles for a second device: Undetectable.io.
• A team that needs a fixed ceiling and a quote: Dolphin{anty} Custom or Multilogin Business.
• One operator, hundreds of profiles on one machine, one flat price: Mosaic.

Read the meter, not the headline, and use whichever you choose for accounts you are allowed to run. Mosaic vs Multilogin works through where flat pricing overtakes per-profile pricing against one of them, and the plans are on the pricing page.