Browser Fingerprint
Your browser fingerprint uniqueness
Estimating…
Computed locally in your browser. Uniqueness is a heuristic estimate — not from a global database.
How to use
- Open the page — a short browser fingerprint ID appears after signals are hashed.
- Review the components table: UA, languages, timezone, plugins, and more.
- Copy the ID or Refresh after changing browser, profile, or privacy settings.
FAQ
What is a browser fingerprint?
A browser fingerprint combines software traits your browser exposes — user agent, languages, timezone, plugin counts — that can distinguish your browser from others even without cookies.
How is the ID calculated?
We collect listed browser-environment signals, join them, SHA-256 hash the payload, and show the first 16 hex characters as the short ID.
Same as What Is My Fingerprint?
[What is my fingerprint](/tools/what-is-my-fingerprint) mixes browser, canvas, WebGL, and screen signals. This page focuses on **browser software traits only**.
Will my ID change?
Yes — browser updates, locale changes, new extensions, and different profiles all alter signals.
Do you store the fingerprint?
No. Hashing runs entirely in your tab when you open or refresh the page.
How do I reduce browser fingerprinting?
Use strict privacy modes, limit unique plugin combinations, and prefer browsers with UA reduction or Client Hints privacy features.
Introduction
Browser Fingerprint hashes software-environment signals — user agent, browser name, languages, timezone, platform, cookie support, and plugin/MIME counts — into a short ID. Trackers combine these with canvas, WebGL, and device probes; this tool isolates the browser layer so you can see what it contributes alone.
Understanding browser fingerprinting helps you compare Chrome, Firefox, and Safari privacy settings and document QA environments without relying on cookies.
Signals in this hash
| Signal | Role |
|---|---|
| User agent | Browser, engine, and OS tokens |
| Languages | Locale fingerprint |
| Timezone | IANA zone from Intl API |
| Platform | Legacy navigator.platform |
| Plugins / MIME types | Counts (deprecated but still probed) |
| PDF viewer flag | Chromium-specific hint when exposed |
Common use cases
- Privacy audit — baseline ID before installing extensions.
- Cross-browser compare — same machine, three browsers, three IDs.
- Support / QA — attach fingerprint ID to bug reports about “unique visitor” logic.
- Education — pair with canvas fingerprint and WebGL fingerprint.
Best practices
- Test in your daily browser profile, not only a clean guest window.
- Do not treat the ID as authentication — it is a coarse local hash.
- For full combined signals, still use what is my fingerprint.
- For hardware/display layer, open device fingerprint.