The User-Agent string identifies the type of web browser you are using. User agents are snippets of code written by web browsers. Your browser tells websites who you are.

User-Agent Lookup Tool helps you to identify your web browser information. This tool relies on the following libraries to find out the requisite information. These are JavaScript libraries that assist in browser detection.

If you are having difficulty using User-Agent lookup, Please Report a Problem.

User Agent Lookup Tool CCBot/2.0 (https://commoncrawl.org/faq/)

UA Lookup

JavaScript According to Navigator.userAgent

Navigator userAgent property is used to send the User-Agent and other HTTP headers to inform the web servers of its identity.

Your Browser
Browser JavaScript
Browser Cookie
Browser Vendor
Screen Size
Browser Type	Desktop PC
Websockets	According to Modernizr
System Time
System Date
Time Format
Time Zone

User Agent Details According to UAParser.js v1.0.2

UAParser.js is a JavaScript library that detects the browser, Operating System, Engine, device type or model, and CPU from the User-Agent data. It has a small footprint and can be used in the browser at the client end or the node.js at the server end.

User Agent
Browser Name
Browser Version
Browser Engine
Engine Version
OS Name
OS Version
OS Architecture
Device Vendor
Device Model
Device Type

User Agent Details According to Platform.js v1.3.6

Platform.js is a browser detection library that applies to all JavaScript platforms.

Browser Name
Browser Version
Engine Version
OS Name
Prodcut
Manufacturer
OS Device

Uses of a User-Agent String

When we consider the different operating systems, the User-Agent is instrumental here. For instance, if you want to check out a specific site on your mobile, the page will be tailored in size and orientation according to your mobile screen for ease of use. Similarly, if you try to access a site on your pc, the page will appear according to the screen size. User-Agent is also helpful in collecting stats on how the browser or OS is being used.

Related articles:

• User Agent Parser Tool
• IP Address Location Lookup