BrowserLeaks alternatives: browser privacy and fingerprint test tools compared

At a glance

• BrowserLeaks: a suite of free tests. Its home page lists IP address, JavaScript, WebRTC leak, graphics fingerprint reports, font fingerprinting, geolocation API, features detection, TLS client and content filters as main tests, with more experimental ones such as DNS leak, client hints and WebGPU. Its privacy policy says it does not store fingerprints.
• AmIUnique: a research project that studies how distinctive browser fingerprints are, with a fingerprint history, a timeline, statistics and a Chrome extension.
• Cover Your Tracks: a project of the Electronic Frontier Foundation that shows how trackers see your browser and tests tracker blocking.
• BrowserScan: a free site with IP, DNS leak, WebRTC, graphics, client hints and bot detection checks, plus a fingerprint report.
• Pixelscan: describes itself as a multi-check tool for browser fingerprinting, proxy detection, IP analysis and DNS leaks.
• CreepJS: an open-source (MIT) research project on weaknesses in anti-fingerprinting extensions and browsers. It says it is not meant as a fingerprinting library.
• iphey: a fingerprint, IP, VPN, bot and DNS leak checker that says it is powered by MixVisit.

Where BrowserLeaks is stronger

BrowserLeaks gives you a separate page and a detailed report for each technique, including network-level tests such as TLS and a client hints test. If you are debugging one specific leak, or comparing a single API across browsers, a dedicated page is easier to read than a combined score. We do not offer most of those individual reports.

What each alternative is for

• Measuring rarity: AmIUnique and Cover Your Tracks compare your configuration against what they have observed from other visitors. Cover Your Tracks says it began in 2010 as Panopticlick.
• Testing privacy tools: CreepJS targets inconsistencies and tampering in browsers and extensions; Cover Your Tracks tests tracker blockers.
• Checking how a setup looks: Pixelscan, BrowserScan and iphey report on fingerprint, IP and bot checks. BrowserScan’s blog has categories for anti-detection browsers, proxies and affiliate marketing, and iphey lists partner offers from proxy and anti-detect browser vendors; keep that in mind when you read their advice.

What the FingerPrint Checker free tests show

Our tests answer a narrower question than a rarity study: what does a fraud-prevention service do with your signals?

• Browser fingerprint test: the visitor ID a fraud-prevention server assigns your browser, whether it recognised the browser from an earlier visit (including in a private window), how closely your signals matched the stored device, and a trust score.
• WebRTC leak test: the addresses your browser reveals through WebRTC, set against the IP address websites see, so you can tell whether a VPN or proxy covers them.
• No sign-up. Developers who want the same ID inside their own product can create an account with free checks.

Run the browser fingerprint test →

Which should you use?

Use BrowserLeaks to inspect a single leak in detail. Use AmIUnique or Cover Your Tracks to learn how rare your browser looks. Use CreepJS to test a privacy extension. Use ours to see the ID a server would assign, whether it survives a private window, and what a VPN does and does not hide.

Browser fingerprint test tools: a guide →

Sources

Statements about other tools come from their own public pages. Check them, since sites change.

• https://browserleaks.com/ (read 28 October 2026)
• https://amiunique.org/ (read 28 October 2026)
• https://amiunique.org/about (read 28 October 2026)
• https://coveryourtracks.eff.org/ (read 28 October 2026)
• https://coveryourtracks.eff.org/about (read 28 October 2026)
• https://pixelscan.net/ (read 28 October 2026)
• https://www.browserscan.net/ (read 28 October 2026)
• https://www.browserscan.net/bot-detection (read 28 October 2026)
• https://github.com/abrahamjuliot/creepjs (read 28 October 2026)
• https://iphey.com/ (read 28 October 2026)

Frequently asked questions