Local browser diagnostics

Free User Agent & Browser Info Checker

Read your user agent, browser and device estimates, feature support and optional detailed browser observations.

  • Local inspection
  • Client Hints where available
  • Optional JSON export

Your User Agent String

Awaiting browser measurement

More browser observations

Local to your browser

Collected locally and never uploaded by this tool. Browser values may be reduced or spoofed; CPU, memory, network and storage values are estimates. Permission states do not access your camera, microphone or location.

User-agent interpretations below are estimates. Feature support means an API is exposed, not that permissions or hardware allow its use.

Browser Info
Device Info
Feature Support
Raw Data
Browser Information
  • Browser Name
    Unknown
  • Browser Version
    Unknown
  • Browser Engine
    Unknown
  • Browser Language
    Awaiting browser measurement
  • Cookies Enabled
    Awaiting browser measurement
  • JavaScript Enabled
    Awaiting browser measurement
  • Do Not Track
    Awaiting browser measurement
Operating System
  • OS Name
    Unknown
  • OS Version
    Unknown
  • Platform
    Awaiting browser measurement
  • CPU Architecture
    Awaiting browser measurement
  • CPU Cores
    Awaiting browser measurement
  • Memory
    Awaiting browser measurement
Network & Security
  • Connection Type
    Awaiting browser measurement
  • Connection Speed
    Awaiting browser measurement
  • HTTPS Secure
    Awaiting browser measurement
  • Incognito Mode
    Not detectable reliably by this page
  • Referrer
    Awaiting browser measurement
Device Information
  • Device Type
    Unknown
  • Device Vendor
    Unknown
  • Device Model
    Unknown
  • Touch Support
    Awaiting browser measurement
  • Orientation
    Awaiting browser measurement
Screen Information
  • Screen Resolution
    Awaiting browser measurement
  • Window Size
    Awaiting browser measurement
  • Pixel Ratio
    Awaiting browser measurement
  • Color Depth
    Awaiting browser measurement
Hardware Information
  • Battery Status
    Not available
  • Battery Level
    Not available
  • Device Memory
    Awaiting browser measurement
  • Hardware Concurrency
    Awaiting browser measurement
  • Maximum Touch Points
    Awaiting browser measurement

Browser Feature Support

This section shows which modern web features and APIs are supported by your browser.

Raw Browser Data

This section shows the raw data collected from your browser.

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Start here

How to use this tool

Follow these steps to get observations you can interpret and act on.

  1. Review your browser snapshot

    Read the user agent and grouped observations. Use the browser, device, feature and raw-data tabs for the details relevant to your issue.

  2. Choose optional details

    Use the detailed-observations button to read available Client Hints, this site’s storage estimates and existing permission states.

  3. Copy or export carefully

    Copy the user agent or download the observations JSON for a support report. Refresh after changing relevant browser settings.

Behind the check

How the user agent and browser information checker works

The checker reads browser-exposed values and interprets the user agent string locally. A user agent often contains legacy compatibility tokens, so names, versions, operating systems and device details should be treated as estimates rather than verified hardware identities.

Understanding your results

  • User-agent values may be reduced, overridden or spoofed. A missing model or version is not a browser malfunction.
  • Feature support means an API is exposed. Browser permissions, hardware, page security and policy still determine whether a feature can be used.
  • CPU, memory, network and storage values are browser-provided estimates. This tool cannot reliably identify private-browsing mode or prove fingerprint uniqueness.
Know the scope

Privacy & important limitations

  • The tool collects and interprets these observations locally and does not upload them. JSON export creates a local download.
  • Reading permission states does not request access to your camera, microphone or location. Review exported details before sharing them because they describe your environment.
Interpret the evidence

Read the source and limitations alongside each value. Missing or estimated data should not be treated as a verified identity or location.

Common questions

Frequently asked questions

Why does my user agent mention several browsers?

Strings often retain names such as Mozilla, Safari or Chrome for compatibility. The parser uses available tokens to estimate the browser; no single token proves its identity.

Will a VPN change these browser details?

A VPN changes network routing and may change your public IP. It generally does not change browser-exposed settings, screen information or user-agent text.