UndetectableBrowsers

How we evaluate anti-detect browsers

An independent, transparent, criteria-based ranking. We do not take a browser's marketing claims at face value — we test them, measure them against a fixed rubric, and publish what we find, including the weak spots.

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Our mission

Anti-detect browsers are bought by people who care about privacy, isolation, and reliability — and who often cannot easily verify vendor claims for themselves. Our job is to do that verification, document it, date it, and keep it current. We aim to be the reference that a careful buyer can trust without having to re-test ten products personally. We have no relationship that lets a vendor buy a better score.

The 10 evaluation criteria

Each browser is scored from 0–10 on ten weighted criteria. The weights reflect what actually determines whether the tool works for serious, sustained use.

  1. 1. Fingerprint masking quality

    20%

    The single most important factor. We assess Canvas, WebGL/GPU, WebRTC, audio, font enumeration, and timezone handling. We pay particular attention to kernel-level masking (spoofing built into the browser engine itself) versus weaker JavaScript injection that detectors can catch. We run profiles through Pixelscan, CreepJS, and BrowserLeaks and note both the scores and the consistency of the reported fingerprint.

  2. 2. Pricing & value

    15%

    We normalize price to a cost per 100 profiles per month so plans with wildly different structures can be compared fairly. We look at the availability of unlimited plans, pricing transparency, discounts, payment methods (including crypto), and whether the model is subscription or lifetime.

  3. 3. Free plan & trial

    10%

    Is there a genuinely usable free tier or trial? How many profiles, for how long, and with what restrictions?

  4. 4. Profiles & management

    10%

    Maximum profile count, bulk operations, sync, profile isolation, and workspace/folder organization.

  5. 5. Automation & API

    10%

    Support for Selenium, Puppeteer, and Playwright; REST API quality; CDP access; no-code RPA builders; and any rate limits that constrain real workloads.

  6. 6. Team collaboration

    7%

    Multi-seat support, roles and permissions, profile sharing, and audit trails.

  7. 7. Proxy & network

    8%

    Built-in proxy support, supported protocols, proxy management UX, and whether bundled or free proxy traffic is included.

  8. 8. Cloud & mobile profiles

    5%

    Cloud-hosted profiles, mobile (Android/iOS) fingerprint emulation, and how realistic those profiles are.

  9. 9. Usability & UI

    8%

    How quickly a new user becomes productive: onboarding, clarity of the interface, and day-to-day friction.

  10. 10. Reputation, reliability & security

    7%

    Track record, uptime, update cadence, responsiveness to detection-vendor changes, data-handling practices, and community sentiment.

How the overall score is computed

The overall score (0–10) is the weighted sum of the ten criteria:

Overall = (FP × 0.20) + (Pricing × 0.15) + (Free × 0.10) + (Profiles × 0.10)
        + (Automation × 0.10) + (Team × 0.07) + (Proxy × 0.08)
        + (Cloud/Mobile × 0.05) + (Usability × 0.08) + (Reputation × 0.07)

The weights sum to 100%. Our published rank order is not a pure sort of the overall score — ranking also factors in popularity and use-case fit, so a slightly lower-scoring tool may rank higher when it is the obvious choice for a common workflow. Where rank and score diverge, the score is the objective number; the rank is our practical recommendation.

How we verify pricing

Pricing is the data point that goes stale fastest, so we treat it carefully:

  • Every price is dated and checked against the vendor's official source (its own pricing page) at the time of writing.
  • Prices are re-verified periodically and the page's update date reflects the last check.
  • We normalize to cost per 100 profiles/month for the comparison tables.

The automation badge

Each browser card carries a quick automation badge — a shorthand for criterion 5:

  • Automation-friendly — solid Selenium/Puppeteer/Playwright/CDP/API support available without major caveats.
  • Limited automation — automation is limited, awkward, or paywalled to a higher tier.
  • No automation — no meaningful automation support.

Affiliate disclosure

Some links on this site are affiliate links. If you sign up through them, we may earn a commission at no extra cost to you. This is how the site funds its testing. It never affects scores or rankings — scoring is done against the fixed rubric above before any commercial relationship is considered, and a vendor cannot pay to move up. We rank products with no affiliate program exactly the same way as those with one.

Suggesting a correction

Found outdated pricing, a missing feature, or a product we should cover? Use the submit an update page. Submissions are verified against this methodology, then published or updated.