BrowserLeaks.com is a website that checks how much private information your web browser is leaking about you. This includes your IP address, unique fonts, screen resolution, operating system, battery status, etc. Advice is given on how to fix this.

BrowserLeaks.com is a website that checks how much private information your web browser is leaking about you. This includes your IP address, unique fonts, screen resolution, operating system, battery status, etc. Advice is given on how to fix this.

Device Info is a web browser security testing, privacy testing, and troubleshooting tool.


This is a demonstration of all the data your browser knows about you. All this data can be accessed by any website without asking you for any permission.

Regain control over your privacy and prevent big companies from selling your data.




Simply send a properly formatted URL with recipient, sender, or both to have the form above prefilled with information. You can export it in CSV or PDF file.

What browser am I using? Is my browser up to date? Find these things out and more! Including JavaScript, Cookie, Local IP address, Flash, and Java detection.

With about:browser, share your browser details and capabilities for easy troubleshooting of web designs and code.
