Browser Privacy Test

This tool shows the information your browser shares with websites. Everything is checked locally in your browser.

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Browser Privacy Test: See What Your Browser Reveals Online

Every time you visit a website, your browser automatically shares certain information so the site can display content correctly and provide a better user experience. While this information is generally harmless, it also contributes to your browser’s digital fingerprint.

Our Browser Privacy Test helps you see exactly what your browser exposes to websites. The tool runs entirely in your browser, meaning none of the information is sent to our servers or stored anywhere. Within seconds, you can view details such as your browser language, screen resolution, timezone, user agent, and storage support.

Whether you’re concerned about online privacy, testing your browser settings, or simply curious about what websites can detect, this tool provides an easy way to inspect your browser’s publicly available information.

What Is a Browser Privacy Test?

A browser privacy test is a diagnostic tool that displays the information your browser makes available to websites during normal browsing. Every browser shares certain technical details to ensure websites function properly.

For example, a website needs to know your screen size to display pages correctly, your preferred language to show localized content, and whether cookies are enabled to keep you logged in.

Although this information is not necessarily personal, combining several browser characteristics can create a unique browser fingerprint that may be used for analytics, personalization, or tracking.

How Our Browser Privacy Test Works

This tool performs all checks locally using JavaScript. No information is uploaded or transmitted to any server.

When you open the page, the tool reads browser properties that are already accessible to websites and displays them in an easy-to-understand format.

The test checks:

  • Cookies status
  • JavaScript availability
  • Local Storage support
  • IndexedDB support
  • Dark Mode preference
  • Timezone
  • UTC offset
  • Screen resolution
  • Viewport size
  • Browser language
  • Preferred languages
  • Platform
  • User Agent
  • Touch support
  • Online status

Because everything runs inside your browser, the results appear instantly.

What Information Can Websites See?

Websites can access a surprising amount of technical information without asking for permission. This information helps improve compatibility and user experience.

Browser User Agent

The User Agent identifies your browser, operating system, and browser version. Websites use it to optimize layouts and provide compatible features.

Example:

  • Browser name
  • Browser version
  • Operating system
  • Device type

Screen Resolution

Screen resolution tells websites how many pixels your display contains.

Responsive websites use this information to:

  • Resize images
  • Adjust layouts
  • Improve readability
  • Display mobile or desktop versions

Browser Language

Your browser sends your preferred language automatically.

This allows websites to:

  • Display translated content
  • Choose the correct currency
  • Show region-specific information

Timezone

Your browser reports your local timezone so websites can display dates and times correctly.

For example:

  • Calendar events
  • Appointment scheduling
  • Local weather
  • Delivery estimates

Cookies

Cookies are small text files stored by your browser.

They are commonly used to:

  • Keep you logged in
  • Remember preferences
  • Store shopping carts
  • Save website settings

Disabling cookies may improve privacy but can also affect website functionality.

Local Storage

Local Storage allows websites to save data directly in your browser.

Unlike cookies, Local Storage can store much more information and remains available until manually cleared.

Common uses include:

  • Saving website preferences
  • Offline functionality
  • Remembering user settings

IndexedDB

IndexedDB is a browser database designed for storing large amounts of structured data.

Many modern web applications rely on IndexedDB for:

  • Offline access
  • Fast searches
  • Cached data
  • Progressive Web Apps (PWAs)

Dark Mode Preference

Many browsers expose your preferred color scheme.

Websites use this information to automatically switch between light and dark themes.

Is This Information Private?

Most of the information displayed by this tool is considered standard browser metadata rather than sensitive personal information.

However, when multiple browser properties are combined, they can contribute to browser fingerprinting, a technique used to distinguish one browser from another.

This does not necessarily identify you personally, but it can make your browser more unique.

Browser Fingerprinting Explained

Browser fingerprinting is a tracking technique that combines various browser characteristics to create a unique identifier.

Some commonly used attributes include:

  • Screen resolution
  • Installed fonts
  • Browser version
  • Operating system
  • Language
  • Timezone
  • Color depth
  • Hardware information

Unlike cookies, browser fingerprints are difficult for users to delete because they rely on browser characteristics rather than stored files.

How to Improve Your Browser Privacy

While it is impossible to hide every browser characteristic, you can reduce the amount of information available to websites.

Use Privacy-Focused Browsers

Browsers that emphasize privacy often include tracking protection and fingerprinting resistance.

Limit Third-Party Cookies

Blocking third-party cookies can reduce cross-site tracking while still allowing most websites to function normally.

Clear Browser Data Regularly

Deleting cookies, cache, and site storage removes information that websites have stored locally.

Keep Your Browser Updated

New browser updates often include important security and privacy improvements.

Running the latest version helps protect against newly discovered vulnerabilities.

Review Browser Permissions

Check which websites have permission to access:

  • Camera
  • Microphone
  • Location
  • Notifications
  • Clipboard

Only grant permissions when necessary.

Why Use This Browser Privacy Test?

Our tool offers several advantages:

  • Runs entirely in your browser
  • No data uploaded to servers
  • Instant results
  • Free to use
  • Works on desktop and mobile
  • No registration required
  • Easy-to-understand output

Whether you’re testing browser settings or learning more about online privacy, this tool provides a quick overview of the information websites can detect.

Frequently Asked Questions

Does this tool collect my information?

No. All checks are performed locally in your browser. Nothing is transmitted to our servers.

Can websites really see this information?

Yes. The information displayed by this tool is generally accessible to websites during normal browsing.

Does this tool detect browser fingerprinting?

This tool shows many of the browser properties that contribute to a browser fingerprint. It does not calculate a uniqueness score.

Does disabling cookies make me anonymous?

No. Cookies are only one part of online tracking. Websites can still use browser fingerprinting and other techniques.

Will using a VPN hide this information?

A VPN hides your IP address and encrypts internet traffic, but it does not hide browser properties such as screen resolution, language, or user agent.

 

Understanding what your browser shares is an important step toward improving your online privacy. This Browser Privacy Test provides a simple way to inspect the information available to websites without installing software or creating an account.

Use the tool whenever you want to check your browser settings, compare different browsers, or learn more about browser fingerprinting and online privacy. Because everything runs locally, you can test your browser with confidence, knowing that your information never leaves your device.