User-Agent Parser & Device Inspector
Parse and analyze browser User-Agent strings and client signatures.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. No data is ever transmitted across the network.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
How to Use User-Agent Parser & Device Inspector
Paste any client User-Agent or use your current browser signature.
Review browser version, OS platform, rendering engine, and device classification.
Export the parsed object as structured JSON.
Frequently Asked Questions
What is a User-Agent string?
A User-Agent is an HTTP header sent by browsers and clients identifying their application name, version, and operating system.
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