User Agent Information Checker
Detecting...
| Feature | Status |
|---|---|
| JavaScript | Enabled |
| Cookies | – |
| LocalStorage | – |
| SessionStorage | – |
| IndexedDB | – |
| Service Worker | – |
| Hardware Concurrency | – |
| Device Memory | – |
| Signature | Detected | Confidence |
|---|---|---|
| Chrome | – | – |
| Firefox | – | – |
| Safari | – | – |
| Edge | – | – |
| Android | – | – |
| iOS | – | – |
| Windows | – | – |
| macOS | – | – |
A user agent is a string of text that your browser sends to websites. It contains information about your browser, operating system, and device, helping sites tailor content and diagnose compatibility issues.
Using a user agent lookup or detector tool lets you quickly see your own user agent string and understand how websites interpret your environment.
This tool parses common signatures from your user agent, reveals browser and OS details, and surfaces device and capability signals that developers and SEO professionals rely on during debugging and optimization.
What data does this tool show?
It shows your user agent string, browser, version, engine, OS, platform, device type, languages, time zone, screen and viewport, public IP, network state, and key capabilities (cookies, storage APIs, service worker, hardware concurrency).
Is this safe and private?
The detection uses standard browser APIs. IP lookup uses free public services; no login required. You can export locally without server upload.
Why can user agent parsing differ?
Browsers update formats and some users spoof strings. Parsing heuristics provide best-effort results but can vary across versions and devices.
How do I share results?
Use the share buttons to open native shares or prefilled links on Facebook, Twitter, LinkedIn, Pinterest, Instagram, TikTok, WhatsApp, Telegram, Snapchat, WeChat, or Email.
The User Agent Information Checker gives a complete picture of your browser, OS, device, and capabilities, with export and sharing built in. Use it for debugging, SEO validation, and compatibility checks to ensure your site delivers the right experience across platforms.
- **User:** Agent, Browser, OS, Device, IP, Detection, Checker
- **Phrases:** user agent, browser detection, OS detection, device info, IP address
- **Phrases:** what is my user agent, user agent string checker, browser and OS detection
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