User Agent Checker — Developer & Web Tools — Zapit

User Agent Checker

Detect browser, OS and device from any user-agent string.

PropertyValue
BrowserUnknown
Rendering EngineUnknown
Operating SystemUnknown
Device TypeDesktop
ArchitectureUnknown
Bot / CrawlerNo
Instantly parse and analyze any user-agent string. Detects browser name and version, rendering engine, operating system, device type, architecture and whether the UA belongs to a bot or crawler.

Key Features

Live Detection
Automatically loads and parses your own browser's user-agent string on page load.
Custom UA Input
Paste any user-agent string to analyze it — useful for cross-browser debugging.
Sample Presets
Quick-load preset UAs: Chrome on Windows, Firefox on Mac, Safari on iOS, and Googlebot.
Parsed Table
Shows Browser, Rendering Engine, OS, Device Type, Architecture, and Bot detection results.

How to Use

  1. 1The page automatically detects your current browser's UA.
  2. 2Paste a custom user-agent string in the text area to analyze it.
  3. 3Click a sample button to load a popular UA preset.
  4. 4Copy your UA string for testing.

Frequently Asked Questions