User Agent Decoder

There are a lot of websites that will decode your device's User Agent identifier, but they tend to be full of adverts or malicious code. So we decided to provide our own spam-free version here.

The decoded version of your User Agent identifier will be show below. Unfortunately, the User Agent header value has no official format or structure. This is one of the reasons that it's hard to keep and complete database of every user agent, their varieties are infinite. So if you think there is an error, use the button below to send us your corrections.

What is a User Agent identifier

Every computer or mobile device should set an data field called User-Agent when getting a page, or making a request, to a website. This is a header field that contains a free-form ASCII string designed to uniquely identify the user agent making the request. In general the string provides information about the user computer or mobile device's software & hardware, a particular information about the browser being used.

The can serve as a fingerprint of the user agent making the request. Consequently, it is not possible to consistently extract detailed information about the device from the User-Agent header value alone. For instance, there is no indication in this string whether the requesting device supports certain features. This information is determined with other methods. However, knowing something about the device and browser can provide insight into the device's capabilities. This is particularly useful for handling requests from mobile devices, where limitations such as screen size can be important to consider.

Currently, storing or tracking the User Agent string without consent is not specifically forbidden by the major data-protection laws. Though as we mentioned above, the User Agent string can server as a fingerprint and tracking it in certain circumstances may contravene the spirit of data protection laws.