Your VPN changes your IP address, but your browser still reports your real timezone, location, language and keyboard. Anonymity Guard makes them all match your exit IP, inside the browser engine.
Free · Chrome and Brave (Chromium 125+) · by ZDResearch
Auto mode looks up your exit IP and matches everything to it, and follows along when you switch VPN servers. Manual mode lets you set each value yourself.
Date, Intl and every other time API, including daylight saving.
The position sites get from the location API.
Number, date and currency formatting, calendar and week start.
The Accept-Language header and navigator.languages, kept in agreement.
A Persian or Cyrillic layout points straight at where you're from. Hidden, as Brave does.
Warns when WebRTC exposes another IP, and lists what Chrome exposes that Brave hides.
Most spoofing extensions rewrite JavaScript functions inside every page. Anonymity Guard sets the values in the browser engine, through the same interface DevTools uses for device emulation.
The free check compares what your browser reports with what your connection reveals: where sites would place you, which languages they see, nationality hints like your keyboard and fonts, and leaks through WebRTC, workers and iframes. Every failure says why it matters and how to fix it.
Run the check
For people who already use a VPN or proxy and understand browser fingerprinting. It works best in Brave, which already handles canvas, WebGL and audio fingerprinting; in Chrome it also hides the keyboard layout and tells you what else stays exposed.
Engine-level overrides use the browser's debugging interface, so a bar appears on every tab. Everything works with it; just never click Cancel. One launcher per browser hides it for good, all profiles included.
No account, no analytics, no tracking, and nothing is sent to ZDResearch. Settings stay in your browser. The only network requests are exit-IP lookups (ipinfo.io, with ipapi.co and ipwho.is as backups) and a STUN request when you run the WebRTC check. The only thing it adds to pages is a one-line script that hides the keyboard layout API; it reads no page content, and it exposes no files sites could use to detect it. Privacy policy
Anonymity Guard