See everything your browser publicly tells websites about your device — User Agent, OS, screen size, language, hardware concurrency, memory, time zone — all in one table. Nothing is sent to a server; every value is read from your own browser's JavaScript APIs.
Every web request reveals dozens of details about your device through HTTP headers and JavaScript-accessible APIs. Combined, these create a 'browser fingerprint' that can identify you across sites even without cookies. Knowing what your browser exposes is the first step in understanding privacy and tracking.
Open this page — the table populates automatically from navigator, screen, window and Intl APIs. No external requests, no data leaves your device. Refresh anytime to see updated values (window dimensions change with resize, time zone changes with travel).
Use it when troubleshooting site-specific browser issues, when reporting bugs to a developer (your User Agent is essential context), when learning about browser fingerprinting and privacy, when verifying your VPN or browser-spoofing extensions are working, or when checking which browser features (memory, hardware concurrency) are available.
For maximum privacy, use Tor Browser (which deliberately normalises fingerprints across users) or Firefox with resistFingerprinting enabled. Most other browsers expose enough variation to be uniquely identifiable. Anti-fingerprinting extensions add noise but are imperfect.
Yes — every value is the same as what every website you visit already sees. There's no extra exposure.
Browsers spoof legacy fragments for compatibility with old sites. The format is intentionally messy and shouldn't be parsed by string-matching alone.
Tor Browser is the gold standard. Firefox + uBlock Origin + privacy.resistFingerprinting=true is a strong second.
Explore more website tracking tools on the tool hub — or jump straight to the Link Tracker, Check Server Status, Page Comparison Tool.