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User Agent Parser

Parse a user agent string into browser, OS, engine and device. It detects your own user agent on load. Free, no sign-up.

How It Works

1

See your browser info

On load, the tool detects and parses your current browser's user agent string automatically.

2

Paste any UA string

Paste a user agent string from logs, analytics, or bug reports to parse it.

3

Read the breakdown

Browser name and version, rendering engine, operating system, device type, and CPU architecture are displayed in clear cards.

FAQ

Chrome, Firefox, Safari, Edge, Opera, Samsung Internet, Vivaldi, Brave, Yandex, UC Browser, Internet Explorer, and more. It also identifies bots and crawlers.
UA strings are notoriously messy — most browsers include legacy tokens for compatibility. This tool uses pattern matching that handles the most common formats, but exotic or spoofed strings may not parse fully.
Yes. The tool identifies device type as desktop, mobile, tablet, smart TV, or bot based on UA patterns.
No. All parsing runs entirely in your browser using regex pattern matching. No data is sent anywhere.

Built & Maintained by Varstatt

Varstatt is a one-person product studio run by Jurij Tokarski, product engineer since 2011. These tools are free and open — no signup, no catch.