How to Choose an Antidetect Browser: 8 Checks

Three questions sort most of the market before you compare a single feature list.

How many people touch the accounts? One operator makes almost every product workable, and price per profile is the only axis that matters. Two or more, and the seat model dominates everything else, because seat pricing differs between vendors by an order of magnitude in effect even where the sticker prices look similar.

Do the accounts have to survive a vendor outage? If a locked dashboard for six hours costs you money, local or self-hosted profile storage stops being a preference. Hosted convenience is real, and our breakdown of cloud versus local antidetect browsers covers the trade properly.

Do you already have proxies? If yes, the bundled traffic in a browser plan is a sample, not a supply, and you should be checking whether the browser lets you attach your own credentials per profile without friction. If no, you are about to buy two products from one vendor and should price them separately anyway.

Everything else is detail. Useful detail, and the next eight sections are exactly that, but those three answers already narrow a twelve-vendor shortlist to two or three.

Every pricing page leads with a profile number. Almost nobody defines it the same way.

Ask the vendor one question: is the limit a count of stored profiles, or a count of simultaneously running profiles? Those are wildly different products. A 100-profile plan where 100 can run at once is a different machine from a 100-profile plan that lets you launch five. Most desktop tools cap concurrency at whatever your RAM allows, which is usually 8 to 15 Chromium instances on a 16 GB laptop, so the stored limit is the real number. Cloud-run products often cap concurrency explicitly, and that cap is the one to compare.

Then ask what happens when you hit the ceiling. Three behaviours exist in the market, and they are not equivalent:

• Hard stop. You cannot create profile 101 until you delete one or upgrade. Predictable, occasionally infuriating at 2am.
• Archive. Old profiles move to cold storage, stay recoverable, and stop counting. This is the behaviour you want, and it is worth asking whether archived profiles keep their cookies.
• Overage billing. Extra profiles bill per unit. Fine if you watch it, expensive if a script creates profiles in a loop.

The number that should drive your choice is not profiles owned, it is cost per active profile per month. A team holding 300 profiles where 40 get used weekly is paying for 260 dormant records. Work it out before you size the plan:

The middle row is where most teams live and where most of the waste sits. Figures here are an illustrative model, not a vendor quote, but the arithmetic is the point: buy a tier around your active count and check that archiving lets you park the rest.

This is the single biggest cost cliff in the category and the one buyers notice last.

Two vendors demonstrate opposite models. Multilogin's pricing page, read in September 2026, attaches seats to the tier: the Pro 10 plan lists 1 seat, Pro 20 and Pro 50 list 2, and the Business tiers list unlimited team seats. GoLogin's plans, read the same month, list 1 team member on Professional, Business, Enterprise and Custom alike, while profile counts rise from 100 to 300 to 1,000 to 2,000 and up. Same category, opposite shape: on one, adding a colleague can mean jumping tier; on the other, the headline tiers are sized by profiles and team access is a separate conversation.

Neither model is wrong. They punish different teams. Work out which one you are:

• One operator, many accounts. Profile-scaled pricing wins. Seats are irrelevant to you.
• Small team, few accounts each. Seat-inclusive tiers win, and profile counts are already generous enough that you will never touch them.
• Agency with client separation. You need both, plus workspaces, and you should be asking about role granularity rather than counts.

On role granularity, one question separates serious products from the rest: can a team member launch a profile without being able to read the stored password? If the answer is no, every contractor you onboard gets your credentials in plain view, and offboarding means a password rotation across every account they touched. Ask for it in writing.

Also check whether seats are named or floating. Named seats mean a departing contractor's seat is dead weight until you edit it. Floating seats mean concurrency is the limit, which is usually what a rotating VA team actually needs.

A browser profile is cookies, localStorage, IndexedDB, a fingerprint config and a proxy binding. Where that bundle sits determines your failure modes.

Cloud-stored profiles sync across machines, survive a dead laptop, and let a team hand accounts around. The cost is that your access to your own accounts routes through the vendor's availability and the vendor's account-status decisions. If they suspend your subscription over a payment failure on a Friday, the profiles are behind that wall until it clears.

Locally stored profiles live in a folder on the machine. They survive any vendor outage, and they die with the SSD unless you have a backup story. Sharing them between operators is a manual job.

Hybrid is the common answer now: encrypted profile data in the vendor's cloud, decryption key derived on your device. Ask specifically whether the vendor can read your cookies. A vendor that can decrypt your profile data server-side is one subpoena or one breach away from being your problem too.

The practical test is boring and decisive: pull the network cable and try to launch a profile you used yesterday. Some products open it from cache, some show a spinner. Whichever answer you get is the answer you will get on the day it matters.

One more question for cloud and hybrid products: what is the retention on a cancelled account? Thirty days of grace is common. Immediate deletion exists. Find out before, not after.

Antidetect browsers do not hide anything from a site that can see your IP history. The proxy layer is half the product, which is why we wrote a whole piece on why antidetect browsers need proxies.

What to check here is not whether proxies are supported. Everything supports proxies. Check these four things:

1. Binding granularity. Is the proxy bound to the profile permanently, or picked per session? Permanent binding is what account work needs, because an account that logs in from a new city every Tuesday is an account with a short life.
2. Credential ownership. If you buy the vendor's bundled traffic, you usually do not get a gateway host and credentials you can point at anything else. That is a lock-in surface and it deserves its own analysis, which is why we cover antidetect browser pricing separately from the proxy bill.
3. Protocol support. HTTP, HTTPS and SOCKS5 all have a place. SOCKS5 matters if you run anything beyond the browser through the same exit.
4. Bulk import. Pasting 200 proxy strings one profile at a time is a real day of somebody's life. A CSV import field is a genuine buying criterion.

If you are bringing your own, the connection details should look like an ordinary upstream proxy. SparkProxy's gateway, for example, is gateway.sparkproxy.io on port 11000 for HTTP and HTTPS, 11002 for sticky sessions, and 13000 for SOCKS5, with either user and password auth or IP whitelisting. Sticky is the port that matters for profile binding, because it keeps a session on one exit rather than rotating per request.

Be honest with yourself about exit type, though. Datacenter addresses are fast, cheap and fine for research, scraping and rank tracking; long-lived logins on consumer platforms usually want ISP or residential exits instead. Our comparison of residential versus datacenter proxies has the decision rule, and SparkProxy sells the datacenter side of that split.

Every product in this category claims fingerprint protection. The claim is nearly worthless as a comparison input, because they are all doing broadly the same job: masking or spoofing canvas, WebGL, audio context, fonts, screen metrics, hardware concurrency and the navigator object. Our explainer on browser fingerprinting covers the surface in detail, and how antidetect browsers handle fingerprint protection covers the implementations.

The comparison input that does matter is how far behind mainstream Chrome the engine runs. A profile advertising Chrome 118 in a month when the real world is on Chrome 131 is a coherent, consistent, completely conspicuous fingerprint. Consistency is not the goal. Blending in is the goal, and blending in is a moving target.

Ask two questions:

• How many days after a Chromium stable release does your engine ship the matching version? Good answers are measured in days. Bad answers are vague.
• Do existing profiles inherit the new version, or do they pin the version they were created with? Both behaviours exist. Pinning is defensible for account stability and dangerous over a long horizon, so you want the choice, not the vendor's default imposed silently.

Do not pay for a "detection score" dashboard. Those check the profile against a fixed set of public fingerprinting probes, which is useful as a smoke test and tells you nothing about the platform you actually care about. The only test that counts is your own target, on your own proxy, over enough days to matter.

If a human clicks every button, skip this section. If anything is scripted, it decides the purchase.

Look for a local automation endpoint: a port on localhost that returns a WebSocket URL you can attach Puppeteer or Playwright to, plus an HTTP API to create, start and stop profiles. That shape means your automation is normal browser automation, and everything you already know about it applies.

Three traps:

• Automation gated to a higher tier. Common. Price the tier you will actually need, not the entry one.
• A proprietary scripting language. Some products ship a visual flow builder instead of a real driver. Fine for simple repeat tasks, a dead end the moment you need a loop with error handling.
• No headless mode. Cloud products often run headless by design; desktop ones often refuse. If you plan to run profiles on a server, confirm it before you architect around it.

While you are testing, check whether the automation endpoint is authenticated. An unauthenticated local API is a foothold for anything else running on that machine, and a browser holding a hundred logged-in sessions is a rich target.

This is the check nobody runs and everybody eventually needs.

Create a profile, log it into something, then export it. Look at what you get. The honest test has three parts:

1. Does the export include cookies and localStorage, or only the fingerprint configuration? Fingerprint-only exports are common and nearly useless, because the fingerprint is the cheap half. The session is the expensive half.
2. Is there a bulk export? One profile at a time across 400 profiles is not a migration, it is a quarter.
3. What format? JSON you can read, or an encrypted blob only that vendor can open? The second answer means the profiles are not portable, whatever the export button implies.

Run this on day two of a trial, not on the day you want to leave. A vendor whose export is a single-profile encrypted blob has priced switching into the product without putting it on the pricing page, and you should either accept that consciously or pick differently.

The same logic applies to your proxy provider, incidentally, and the mechanics are similar enough that our guide to switching proxy providers without downtime transfers cleanly to browser migrations.

Antidetect browsers discount annual billing heavily. Multilogin's page, read in September 2026, shows Pro 10 at $7.08 per month on annual billing against $11.00 monthly, Pro 20 at $12.42 against $19.00, and Pro 50 at $19.17 against $29.00. GoLogin and others display a comparable split. AdsPower presents its plans on an annual basis with an Enterprise tier priced on request, so the monthly figure is not something you can read straight off the page at all.

A discount around 35 percent for a year of commitment is genuinely good value if the tool survives your first quarter. Most buyers cannot know that yet. So the rule is simple: pay monthly until you have run a full billing cycle of real work through it, then switch to annual at renewal. The premium you pay for those first months is the cheapest insurance in this category.

Four billing details to confirm before you commit to a year:

• Mid-cycle upgrades. Prorated, or a fresh charge?
• Downgrades. Effective immediately, or at renewal? Annual plans frequently mean you cannot shrink until the term ends.
• Refund window. Days, and whether usage voids it.
• What happens to profiles at the end of the term if you do not renew.

If free tiers are part of your evaluation route, be aware of where their limits bite. Our piece on free antidetect browsers is specific about which limits are real constraints and which are just marketing shape.

The eight checks are not equally important to everyone. Here is how they weight by the shape of the work, expressed as the three that should carry the decision:

Two patterns fall out of that table. Anyone with more than one operator should treat seats as the primary axis and be suspicious of profile-count comparisons. Anyone automating should treat the automation endpoint as a hard requirement and stop evaluating products that lack one, however good the rest looks.

Sales chats answer six of these eight checks. The other two only answer to a keyboard. Here is the sequence, and it fits in two evenings.

Hour one. Create three profiles. Attach a different proxy to each, using your own credentials rather than bundled traffic, so you are testing the binding and not the bundle. Load an IP checker in each and confirm the exit matches what you set. Confirm DNS resolves through the proxy rather than your ISP, which is a leak our proxy DNS leak testing guide walks through.

Hour two. Log one profile into a real account you can afford to lose. Close everything. Reopen the profile the next day and confirm the session survived, from the same exit.

Hour three. Export all three profiles. Open the export file in a text editor. Answer check 7 yourself rather than asking support.

Hour four. If you automate, attach Playwright or Puppeteer to a running profile and drive one page. If that does not work in an hour with the vendor's own documentation open, it will not work better in month three.

Hour five. Disconnect from the internet, then try to launch a profile. Record what happens.

Hour six. Invite a second user if your plan allows it, and check exactly what they can see. Specifically, open the saved password field as that user.

Six hours against eight checks, with the two most expensive mistakes in the category, exit cost and seat cliffs, discovered while you can still walk away. That is a better use of a trial than reading another feature grid.