Anti-Detect Browsers: How to Choose One and Add a Proxy

Technically no, but in practice yes. Without a proxy, every profile shares your real IP, so a site can link the profiles at the network level however different their fingerprints are.

• One IP per profile. Two profiles on one IP look like one person on two browsers. That is normal for colleagues in one office who share a connection; it is not for profiles that stand for separate clients or businesses.
• Keep the IP stable. A sticky session holds one IP for 30 s to 36 h (presets 1, 5, 10, 30 min, 1, 3 and 6 h), enough for a profile you open once a day for one sitting. A dedicated ISP IP holds one address for the whole 30-day term, for a profile that must log in from the same IP for weeks: 10 dedicated ISP IPs cost $22.90–$27.90 per 30 days ($2.29–$2.79 each).
• Match the profile to the IP. Set the timezone, language and geolocation to the proxy's country; most antidetect browsers have a "based on IP" option.

A residential proxy with a sticky session works best for most profiles; mobile suits mobile-first platforms, and a dedicated ISP IP suits profiles that keep one address for days.

Check the platform before you choose datacenter IPs: many social and marketplace platforms treat them as higher risk.

Residential costs from $1.95/GB ($2.95/GB at 1 GB) and mobile from $2.45/GB ($3.45/GB at 1 GB), both from one balance. A dedicated ISP IP costs from $2.29 per IP per 30 days, whatever the number of IPs. You renew per-IP terms yourself in the dashboard, and nothing renews automatically. Dedicated datacenter IPv4 and dedicated ISP IPs come with unlimited traffic. ISP proxies are sold in the countries their order form lists, which follow stock. Dedicated IPs come as a list in your dashboard (ip:port:login:password) and work over HTTP, HTTPS and SOCKS5, each IP with its own login and password.

Enter the gateway, port, username and password in the profile's Proxy section, check the connection, and match the profile's location to the IP.

1. Create or open a profile and go to its Proxy tab or section.
2. Choose HTTP (or SOCKS5 SOCKS5 takes the same username and password.).
3. Enter host gate.proxyfield.io, port 7000, your username with its parameters (for example <login>-country-us-city-new_york) and your password.
4. Click the browser's Check proxy button. It should show the exit IP and its country.
5. Set timezone, language and geolocation to "based on IP", or match them to the proxy's country.
6. Save, launch the profile, and open https://ipinfo.io/json inside it. You should see an IP that is not yours, in the country you chose.

To test your credentials first, run this in a terminal:

curl -x gate.proxyfield.io:7000 -U "<login>-country-us-city-new_york:<password>" https://api.ipify.org

Replace <login> and <password> with your credentials, or test your proxy online.

Country, city and sessions. The location goes in the username: <login>-country-us-city-new_york asks for an exit IP in New York, United States. Targeting covers country, region (state) and city, and all 50 US states. Give each profile its own sticky session of 30 s to 36 h. Syntax for region, session id and session time: -region-<region>, -session-<id> and -ttl-<seconds> (30 to 129,600 seconds, 20 minutes by default) after the location, as in <login>-country-us-region-new_york-city-new_york-session-he9f2qga-ttl-600. Residential is the default; add -mobile after the login for mobile IPs: <login>-mobile-country-us.

Bulk import. Most antidetect browsers accept one proxy per line in the format host:port:username:password, for example gate.proxyfield.io:7000:<login>-country-us-city-new_york:<password>. Use one line per profile, each with its own country or session. The dashboard's configurator generates as many proxy lines as you need.

Enter the values from the steps above in the profile's proxy settings; each vendor's own guide shows where its fields are.

There is no single best antidetect browser: pick by platform, operating system, engine, automation API and price. We don't rank the browsers or list their plans and features, which change often: check them on each vendor's site.

How to choose:

• HTTP or SOCKS5 proxies with a username and password.
• Bulk import, if you run many profiles.
• The engine your target sites expect (Chromium or Firefox).
• An API that supports your tools, such as Playwright.
• Team sharing, and where profiles are stored (local or cloud).

For many profiles, the items that matter are bulk proxy import, an automation API, and the engine and desktop OS you need; check them on the vendor's site, since plans and features change.

The proxy format for many profiles. Bulk import usually takes one proxy per line as host:port:username:password. With ProxyField, one line per profile looks like gate.proxyfield.io:7000:<login>-country-us-city-new_york:<password>, each with its own country or session.

How long the IP must last. A residential sticky session holds one IP for up to 36 h, enough for a profile you open once a day for one sitting. A profile that must keep one IP for weeks needs a dedicated ISP IP: from $2.29 per IP per 30 days. What 10, 50 or 100 profiles cost on each route is in Cost and traffic.

Your real IP leaks when some traffic leaves the profile outside the proxy. The proxy carries the profile's web requests, but WebRTC can reveal your real address, DNS lookups can go to your own provider, and an IPv6 route or an extension can skip the proxy. Fix each channel in the profile, then test twice.

An antidetect browser runs many separate browser profiles on one computer, each with its own fingerprint, cookies and storage. The fingerprint is what a site can read from a browser: user agent, screen size, fonts, canvas and WebGL output, timezone and language. An antidetect browser gives each profile its own consistent set, so the profiles look like different devices. Most are built on Chromium, and a few also offer a Firefox-based engine. Profiles are stored locally or in the vendor's cloud and can be shared with a team. The browser does not change your IP address: that is the proxy's job. For plain Chrome profiles with their own proxy, see Chrome; for Firefox, see Firefox.

Yes, sometimes. Platforms look at behavior, login history and payment details, not only at fingerprints and IPs. Whether the software is safe and legal to use is answered in our legal guides: the software is legal, and legality depends on the use.

Use antidetect browsers and proxies only for legitimate work within each platform's terms: teams managing their clients' real accounts, regional storefronts, ad verification, QA and localization testing. ProxyField's acceptable use policy allows "collecting public web data, price and SEO monitoring, ad verification, testing, market research, managing your own or your clients' social media and marketplace accounts (one IP per account), and similar lawful work", and it forbids spam and fraud, "including phishing, ad and click fraud, fake accounts or engagement". More on the law in our legal guides. This is not legal advice.

A proxy changes the IP per profile, an antidetect browser separates fingerprints, a VPN changes the whole device's IP.

For phones, see the Android and iPhone guides; the full comparison is in VPN vs proxy.

A logged-in browsing profile uses far less traffic than scraping, and with residential and mobile proxies you pay only for the gigabytes you use. The dashboard shows usage in real time and your remaining gigabytes. Unused traffic never expires, so idle profiles cost nothing.

A dedicated ISP IP is a 30-day term per IP: it costs the same whether the profile is used or not, and you renew it yourself, with no auto-billing. See pricing per GB.

What proxies for many profiles cost, by route (the residential column assumes 1 GB per profile a month; your dashboard shows the real figure):

Residential traffic you don't use stays on the balance, because it never expires; per-IP terms cost the same whether a profile is used or not.

Most failures come from field order, protocol or username spelling. More in proxy errors.

Gateway error codes: 407 Proxy Authentication Required for a wrong login or password, an IP not on the allowlist or a malformed location, 402 Payment Required when no traffic is left and 502 Bad Gateway when no exit could be connected; a restricted site gets no separate response, and a 403 comes from the site itself.

Start with the Easy Trial: 1 GB for $2.95, no minimum purchase, no subscription. All purchases are final; in return, your traffic never expires. See pricing.