Web & Networking Tools
User-Agent String Parser
Parse User-Agent strings into browser, OS, device, and engine details.
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What is UA Parser?
User-Agent strings identify the client software making an HTTP request. This parser matches patterns against a local database to identify browsers, operating systems, and device types.
How it works
We match the UA string against known browser, OS, and device signatures using regex patterns, returning structured metadata.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Type or paste any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.