Free Online Browser User-Agent String Parser
Extract browser engine, device type, CPU architecture, and operating system data from HTTP user agent headers in browser memory.
Direct Answer & Pipeline Overview
Browser User-Agent String Parser Online is a specialized, 100% client-side engineering utility developed by Atlyxen Studios. It processes calculations and conversions directly inside your browser memory using hardware-accelerated WebAssembly and WebGL, guaranteeing instant results with zero server file transfers and zero data retention.
How to Use the Browser User-Agent String Parser Online
Review Automatically Detected String
The tool immediately detects and inspects your current browser User-Agent string on load.
Paste Custom Server Log String
Paste any User-Agent string from Apache, NGINX, or Cloudflare access logs to identify client telemetry.
Export Parsed Details
Click JSON to copy a structured JSON breakdown of browser version, OS, engine, and device type.
Key Technical Capabilities
Automatic detection of current browser and device environment with one click
Extracts browser family (Chrome, Safari, Firefox, Edge, Opera, Brave, Samsung Internet)
Identifies operating system and release (Windows 11/10, macOS, iOS, Android, Linux, ChromeOS)
Accurate device form factor classification (Desktop, Mobile Phone, Tablet, Crawler Bot)
Detects rendering engines (Blink, WebKit, Gecko) and CPU bitness architectures
Recognizes search engine crawlers (Googlebot, Bingbot, DuckDuckBot, Baiduspider)
Export parsed diagnostic telemetry directly as formatted JSON
Frequently Asked Questions
What is an HTTP User-Agent header?
The User-Agent header is a string sent by web browsers and HTTP clients to web servers with every request, containing information about the browser software, rendering engine, operating system, and device architecture.
Can User-Agent strings be spoofed?
Yes. Browsers allow developers to modify or spoof their User-Agent using developer tools, and extensions or HTTP libraries (cURL, Python requests) can declare any arbitrary string. User-Agent strings should be treated as hints rather than cryptographic identity proof.
What is the difference between Blink and WebKit?
WebKit is the open-source browser engine developed primarily by Apple for Safari. Blink is an open-source engine developed by Google as a fork of WebKit, used in Google Chrome, Microsoft Edge, Opera, and Brave.
Is my personal information or IP address logged?
No. All User-Agent parsing and regex pattern matching occurs 100% locally in your web browser memory. Zero analytics or server logs are created.