# User Agent Parser

Parse User Agent strings to extract browser, OS, device, and engine information

> Canonical page: https://elysiatools.com/en/tools/new-user-agent-parser

- **Category:** Development

- **Keywords:** user agent, parser, browser, operating system, device detection, UA, user-agent, User Agent Parser

## Overview

### User Agent Parser

This tool extracts detailed information from User Agent strings:

**Extracted Information:**
- **Browser**: Name, version, and rendering engine
- **Operating System**: Name and version
- **Device Type**: Desktop, Mobile, Tablet, or Bot
- **Engine**: Blink, Gecko, WebKit, Trident, etc.
- **Confidence Level**: HIGH, MEDIUM, or LOW

**Supported Browsers:**
- Chrome, Edge, Opera, Brave, Vivaldi
- Firefox, Waterfox, Pale Moon
- Safari, Mobile Safari
- Internet Explorer
- UC Browser, Samsung Internet, Miui Browser

**Supported Operating Systems:**
- Windows (95, 98, NT, 2000, XP, Vista, 7, 8, 10, 11)
- macOS and OS X
- Linux distributions
- Android
- iOS (iPhone, iPad, iPod)

**Bot Detection:**
- Googlebot, Bingbot, Slurp, DuckDuckBot
- Facebook Bot, Twitter Bot, LinkedIn Bot
- Various web crawlers and spiders

**Use Cases:**
- Analytics and usage tracking
- Device-specific content delivery
- Bot detection and filtering
- Browser compatibility checks
- Security and fraud detection

## Inputs

- **User Agent String** (textarea): Enter the User Agent string to parse...

## When to use

- When analyzing website traffic logs to identify user browsers, operating systems, and devices for analytics.
- When implementing device-specific content delivery or responsive design based on client capabilities.
- When filtering out bot traffic from web server logs to ensure accurate user engagement metrics.

## How it works

- Input the User Agent string into the provided textarea field.
- The tool parses the string using pattern matching and comprehensive databases for browsers, OS, and bots.
- It outputs a structured JSON object containing browser name and version, operating system, device type, rendering engine, and a confidence level.

## Use cases

- Web analytics to segment traffic by browser, OS, and device for targeted insights and reporting.
- Security and fraud detection to identify suspicious clients or block malicious bots based on User Agent analysis.
- Development and testing to verify browser compatibility and ensure consistent user experiences across different platforms.

## Frequently asked questions

### What is a User Agent string?

A User Agent string is a text identifier sent by web browsers and other clients to servers, containing details about the software, device, and capabilities.

### What information does this tool extract?

It extracts browser name and version, operating system name and version, device type (desktop, mobile, tablet, or bot), rendering engine, and a confidence level for the parsing accuracy.

### How accurate is the parsing?

The tool uses extensive pattern matching and databases to provide high accuracy, with confidence levels (HIGH, MEDIUM, LOW) indicating reliability based on known User Agent patterns.

### Can it detect bots and crawlers?

Yes, it identifies common bots like Googlebot, Bingbot, DuckDuckBot, and various web crawlers by analyzing the User Agent string.

### Is the tool free and private?

Yes, this tool is free to use and processes data client-side, ensuring your User Agent strings are not stored or shared.

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## Samples

- [User Agent Samples](https://elysiatools.com/en/samples/user-agents): Comprehensive collection of User Agent strings from various browsers, operating systems, devices, and bots for testing and validation
- [Nginx Log Parser Samples](https://elysiatools.com/en/samples/nginx-log-samples): Comprehensive Nginx log samples for testing log-parser tool, including access logs and error logs with various formats and scenarios
- [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion