User Agent Parser
Decode browser user agents
Source Input
Processed Output
What is the User Agent Parser?
Every browser sends a User-Agent header describing itself — but the format is notoriously messy. This parser extracts the browser family and version, rendering engine (Blink, Gecko, WebKit), operating system, and device class (desktop/mobile/bot) from any UA string, including bots and app webviews.
Frequently Asked Questions (FAQ)
Q: Can it detect bots and crawlers?
Yes. Common crawler user agents like Googlebot, Bingbot, and GPTBot are identified with their verification hostnames.
How to Use the User Agent Parser
- 1Paste your input into the editor above — or start from the preloaded example.
- 2Adjust any options, then click Run to process instantly in your browser.
- 3Review the output panel, then copy, download, or save it as a reusable snippet.