User-Agent Parser
Parse browser and device information from any User-Agent string. See what's behind those headers.
Browser
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Operating System
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Device Type
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Rendering Engine
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Browser Detection
Identifies Chrome, Firefox, Safari, Edge, Opera and more.
Device Recognition
Detects Desktop, Mobile, and Tablet devices accurately.
Engine Detection
Identifies the rendering engine: Blink, WebKit, or Gecko.
How User-Agent Works
The User-Agent header is sent with every HTTP request and identifies the browser, operating system, and device making the request. Web servers use this information to serve appropriate content, analytics tools track device usage, and developers use it for browser compatibility.
About the User-Agent Parser
Browsers send a User-Agent header with every request describing the browser, its version, the operating system, and the device. The parser turns that string into readable details.
How to use it
- 1 Use your current user agent or paste another one.
- 2 Parse it.
- 3 Read the browser, operating system, device, and engine.
Frequently asked questions
Why does every browser say "Mozilla/5.0"?
For historical compatibility. Early websites only sent full features to Mozilla, so other browsers started copying the token, and it stuck.
Can the user agent be faked?
Yes. Users and bots can send any user agent, so do not rely on it for security.
What are User-Agent Client Hints?
A newer way for Chromium browsers to share browser and device details through separate Sec-CH-UA headers, replacing parts of the user-agent string.
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