Learn how to use a User Agent parser to identify browsers, devices, and bots online. Use Bagiqo's free User Agent parser to decode any user agent string instantly.
User Agent Parser: Identify Browsers, Devices, and Bots Online
Every time your browser connects to a website, it sends a User Agent (UA) string — a line of text that identifies your browser, operating system, device, and software version. Developers use this information to optimize website rendering, track analytics, and detect bots.
If you need to decode a User Agent string, Bagiqo's free User Agent Parser can break down any UA string into its components instantly.
What Is a User Agent String?
A User Agent string is a text header sent by browsers and other HTTP clients to identify themselves. A typical UA string looks like this:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
This string tells the server:
- Browser: Chrome 120.0.0.0
- Engine: AppleWebKit/537.36 (Blink)
- Operating system: Windows 10 (64-bit)
- Device type: Desktop computer
Why Parse User Agent Strings?
- Web analytics: Understand what browsers and devices your visitors use.
- Debugging: Identify browser-specific issues from server logs.
- Security: Detect unusual or suspicious UA strings that may indicate bots or scrapers.
- Content optimization: Serve appropriate content based on detected device.
- Log analysis: Make sense of raw server access logs.
- SEO: Understand how search engine bots see your site.
How to Use Bagiqo's User Agent Parser
- Open the parser: Go to Bagiqo User Agent Parser.
- Enter a UA string: Paste any User Agent string into the input field, or click the button to check your own browser's UA.
- Click Parse: The tool instantly decodes the string into readable components.
- View the breakdown: See the browser name, version, operating system, device type, and rendering engine.
Parsing is instant and requires no account.
Common User Agent Examples
- Chrome on Windows: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
- Safari on iPhone: Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Mobile/15E148 Safari/604.1
- Googlebot: Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.109 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
- Edge on Windows: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0
Why Use Bagiqo's User Agent Parser?
- Free: No costs, sign-ups, or usage limits.
- Instant: Parse any User Agent string in real time.
- Comprehensive: Detects browser, engine, OS, device, and bot status.
- Privacy-safe: UA strings are processed in your browser.
Parse a User Agent Now
Need to decode a User Agent string? Use the Bagiqo User Agent Parser — it is free, fast, and works directly in your browser.