The developer tools you reach for every day, all in one place.
Converters, formatters, hashes, validators, and the small utilities you keep reopening stay together instead of getting lost across tabs.
/ Tools
■User Agent Parser
Parse User-Agent strings to extract browser, OS, and device information
What is a User-Agent?
A User-Agent is a string that web browsers and other applications send to web servers to identify themselves. It contains information about the browser, operating system, device type, and rendering engine. Web servers u…
How does it work?
User-Agent Components Browser: The web browser name and version (Chrome, Firefox, Safari, etc.) Operating System: The OS name and version (Windows, macOS, Android, iOS) Device Type: Whether it's a desktop, mobile, table…
Sample Cases
Covers Chrome on Windows, Safari on iPhone, and Firefox on Linux so you can compare common inputs and outputs quickly.
/ Code
■Source code from the selected tool, shown here alongside the live version on the right.
// No external dependencies needed - pure JavaScript/TypeScript
interface ParsedUserAgent {
browser: { name: string; version: string };
os: { name: string; version: string };
device: { type: string };
engine: { name: string; version: string };
}
function parseUserAgent(ua: string): ParsedUserAgent {