User-Agent Parser

User-Agent Parser is part of DevStudio — a free, in-browser collection of developer utilities that work without sign-up, installation, or any backend service. Decode a UA string into browser / OS / device / engine; flag bots, crawlers, CLIs and library fetchers, all running entirely on your device. Because the page never uploads what you paste, you can run sensitive payloads, configuration files, secrets, or production data through it with confidence: nothing leaves your browser tab. Use User-Agent Parser for ad-hoc debugging, code review, log triage, release prep, learning a new format, or as a quick scratchpad while you build. If you use this tool a lot, pair it with String Inspector, MIME Type Checker, URL Splitter, and the rest of the DevStudio toolkit for related developer workflows.

Related developer tools

• String Inspector — Escape strings, visualize whitespace, and inspect Unicode code points
• MIME Type Checker — Look up MIME types by file extension or content sniffing
• URL Splitter — Break URLs into scheme, host, port, path, query and fragment parts
• Dev Cheatsheets — Searchable Vim / Git / Regex / JSON / CSS / YAML / SQL / Markdown / cron / Bash reference

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