Parse any User-Agent string to identify browser, OS, device type, engine, and version. Free online User-Agent parser — also detects your current browser.
The Tooloogle User-Agent Parser decodes any User-Agent string — the identification banner browsers send with every request — to reveal browser, operating system, device type, rendering engine, and version details. Useful for debugging server logs, analytics work, and feature-detection edge cases.
Browser — name and version (Chrome, Firefox, Safari, Edge, Opera, Brave, Vivaldi, etc.).
Operating system — Windows, macOS, Linux, Android, iOS, ChromeOS, with version where available.
Device type — desktop, mobile, tablet, smart TV, console, embedded.
Device model — for mobile devices, the marketing name (e.g. iPhone 15, Pixel 8, Galaxy S24).
Rendering engine — Blink, WebKit, Gecko, with version.
CPU architecture — x86_64, ARM, etc., when present in the UA string.
Bot detection — flags known crawlers (Googlebot, Bingbot, social previewers).
Detect current browser — one click parses your own User-Agent string.
Paste any UA string — analyse strings from server logs, API headers, or analytics tools.
Side-by-side compare — paste two UAs to see how they differ.
Bot vs human — clear indicator for crawler traffic.
JSON output — copy parsed components as JSON for use in scripts.
Debugging analytics data and bot traffic. Investigating user-reported issues that depend on browser or device. Building feature-flag rules based on browser support. Verifying that A/B test traffic is filtered by device correctly. Auditing server logs for unusual user-agent patterns (security investigations).
User-Agent strings are easily spoofed — never use them for security decisions, only for analytics and progressive enhancement.
Modern browsers are progressively reducing UA detail in favour of User-Agent Client Hints — build new code against feature detection where possible.
All parsing happens in your browser. UA strings — though not personal data per se — are never transmitted or logged.
How to Use User-Agent Parser - Identify Browser, OS & Device Online
Paste any User-Agent string or click Use Current Browser to auto-detect yours.
Click the Parse button to extract browser, OS, engine, device type, and more.
Instantly see the parsed results in structured fields like browser, version, OS, etc.
Parse any User-Agent string to identify browser, OS, device type, engine, and version. Free online User-Agent parser — also detects your current browser.
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