Explaining raw log data
Parse a user-agent string into browser, OS, engine, and device clues so the result is easier to read than the raw header.
User Agent Parser
User Agent Parser helps you break a user-agent string into browser, OS, engine, and device clues for analytics checks, QA, debugging, and log review. It is useful when raw user-agent text is harder to read than the answer you actually need.
Tool interface
What this tool does
User Agent Parser helps you inspect browser, OS, engine, and device clues from a user-agent string for analytics checks, logs, and debugging.
Related next steps include IP Address Lookup, HTTP Header Parser, and the Free browser-based developer tools page if you want to keep working on the same task from a different angle.
When to use it
Use it when a raw user-agent string is sitting in a log, analytics panel, or support ticket and you want the browser, OS, and device clues translated into something easier to read.
If the next check is about IPs, URLs, or headers, continue with IP Address Lookup. For broader technical QA tasks, open the Free browser-based developer tools page next.
How to use it
Paste the user-agent string and review the browser, OS, engine, and device clues the parser can identify.
- Copy the user-agent string from logs, analytics, or browser diagnostics into the input field.
- Run the parser and review the browser, operating system, engine, and device summary.
- Use the result to make the raw string easier to explain in QA notes, support replies, or debugging work.
Example
This example shows the kind of input and output the tool is designed to handle in a typical browser workflow.
Example input
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36Example output
Browser: Chrome
OS: macOS
Device: DesktopCommon use cases
Supporting QA and analytics checks
It is useful for browser debugging, analytics validation, support replies, and environment review.
Comparing client details quickly
A parser saves time when you need a fast read on what kind of browser or device produced a request.
Moving into nearby request checks
If you need related URL, header, or IP checks next, continue with IP Address Lookup.
FAQ
What does User Agent Parser do?
User Agent Parser helps you inspect browser, OS, engine, and device clues from a user-agent string for analytics checks, logs, and debugging.
When should I use User Agent Parser?
Use it when a raw user-agent string is sitting in a log, analytics panel, or support ticket and you want the browser, OS, and device clues translated into something easier to read.
How is User Agent Parser different from IP Address Lookup?
User Agent Parser focuses on this exact task. Use IP Address Lookup when you need to validate an IPv4 or IPv6 address and inspect useful structural details such as version, private-range status, loopback status, and formatting instead.
Does User Agent Parser run in the browser?
Yes. This tool runs in the browser so you can work with the input on the page without sending it through a custom backend on this site.
What should I use after User Agent Parser?
A good next step is IP Address Lookup or the Free browser-based developer tools page.
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Open tool pageWorking with this result
Review the result before you publish, export, or copy it into another system. These tool pages are designed to make browser-based work easier, but the final responsibility for the output still sits with the person using it.