We tested 12 antidetect browsers. Here is the tier list.

• On the IP of every product, stock Chrome passed the first Cloudflare page, scored 0.9 on reCAPTCHA v3, and had no Fingerprint Pro flag. So the flags below come from the browsers, not from the IPs.
• 8 of 12 browsers passed all 3 Cloudflare challenge pages. MoreLogin Chrome and GoLogin passed none: on every page they stopped at the “Verify you are human” checkbox.
• Fingerprint Pro reported browser tampering on 9 of 12 browsers and a virtual machine on 6. CloakBrowser (free 146) was the only browser flagged as a bot. Only AliasMode Firefox and Donut Browser had no flag.
• reCAPTCHA v3 gave every browser 0.9, the same score as stock Chrome. It did not separate the browsers.
• Two profiles of Octo Browser and AdsPower FlowerBrowser had the same value for all 7 hashed signals, so these values could not tell the two profiles apart. AliasMode Firefox, CloakBrowser (free 146), and DICloak kept 5 of 7 apart, the most in the test.
• AliasMode Firefox and Camoufox showed no impossible values. DICloak’s user agent claimed Chrome 147 on a Chrome 142 engine, and one DICloak profile claimed Windows 8.1, which Chrome 147 does not support.
• On the test day, Chrome stable was 156 and Firefox stable was 159. Dolphin Anty and Octo Browser ran Chrome 156. CloakBrowser (free 146), DICloak, AdsPower FlowerBrowser, and MoreLogin Chrome ran engines 4 or more major versions behind.
• Dolphin Anty started fastest (1.345 s median), and Octo Browser used the least RAM (450.3 MB).

An antidetect browser exists so that you can run many accounts on one computer, and each account looks like a different person. That only works when the profiles do not share hashed values such as the canvas image, the font list, or the speech voices. A site that sees the same values in two accounts can tie them to one device.

This is why the benchmark compares two profiles of each product on the same computer. Two AliasMode Firefox profiles differed on 5 of 7 hashed signals, and two AliasMode Chromium profiles on 4 of 7. AliasMode is free with unlimited profiles, needs no account in Local mode, and is open source from the engines to the app.

• One Linux server (16 cores, 31 GB RAM) with no GPU and a virtual display. Results on a Windows PC with a graphics card can differ, most of all for WebGL, fonts, and speech voices.
• Every browser was asked for a Windows identity, the newest browser version it offered, and US English. All other settings stayed at the product defaults. We did no tuning.
• Free plans or free trials only. A paid plan can include a newer engine or more options.
• Products with no Linux desktop app were not tested. Most of them run only on Windows and macOS.
• We make AliasMode, one of the tested products. We fixed the method on 2026-10-28, before any result, and scored AliasMode with the same rules.
• One rule changed after the results: Cloudflare is scored on 3 challenge pages instead of 1 try, because one try proved too random. The change applies to every browser. The detection page shows the result on each page.
• One computer, one IP per product, and one run of each test page. A new run can differ, most of all for Cloudflare.

Do you make one of these browsers? You can ask for a rerun on a paid plan through our contact page. We run the same method and publish the new result with its date in the changelog below. Vendors of the products that we could not test can ask too.

The CSV and JSON files hold the points of each section and the result of each test for all 12 browsers, as in the tables on these pages. Screenshots and raw probe files stay private, because they show proxy addresses and sign-up details.