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Random User-Agent Generator

Create sample browser-identification headers with MiniWebtool’s Random User-Agent Generator. It supplies strings across desktop browsers, mobile devices, and search bots for compatibility checks and simulated request logs.

3 free uses dailyNo sign-up requiredUpdated Sep 2026
Random User-Agent GeneratorTry it now — free ▼
Generate 5 random User-Agent strings from a real-world browser mix

Choose a browser or device category and how many strings; copy them one by one or all at once, or export JSON, TXT or CSV.

Quick presets:

🎲 All Random (10) 💻 Chrome Desktop 📱 iOS Safari 🤖 Googlebot 🚀 Bulk 100
Your browser sends
HTTP Request Preview
GET /api/data HTTP/1.1
Host: example.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36

Embed Random User-Agent Generator Widget

About Random User-Agent Generator

Welcome to the Random User-Agent Generator, a powerful tool designed for developers, QA engineers, and web scrapers who need realistic browser identification strings. Whether you are testing website compatibility, building web automation tools, or analyzing how sites respond to different clients, this generator provides authentic User-Agent strings from the latest browser versions.

What is a User-Agent String?

A User-Agent (UA) string is a text identifier that web browsers and HTTP clients send to web servers with every request. It contains information about:

Websites use User-Agent strings to deliver optimized content, track browser statistics, and sometimes restrict access to certain features based on the detected client.

Why Generate Random User-Agents?

Web Scraping and Data Collection

When scraping websites at scale, using the same User-Agent repeatedly can trigger anti-bot detection systems. Rotating through a pool of realistic User-Agents helps maintain anonymity and avoid IP blocks. This tool generates authentic strings that mimic real browser traffic patterns.

Compatibility Testing

QA engineers need to verify that websites render correctly across different browsers and devices. Instead of maintaining a physical device lab, you can use these User-Agents in automated testing frameworks to simulate various client environments.

Load Testing with Realistic Traffic

Performance testing is more accurate when it simulates real-world traffic diversity. By using varied User-Agents in your load tests, you can identify potential issues with browser-specific code paths or device-targeted features.

SEO and Bot Detection Testing

Webmasters can use search engine bot User-Agents (Googlebot, Bingbot) to verify that their sites respond correctly to crawler requests. This helps ensure proper indexing and identify potential cloaking issues.

Supported Browsers and Devices

💻
Desktop Browsers
Chrome, Firefox, Safari, Edge, Opera
📱
Mobile Browsers
iOS Safari, Chrome Android, Samsung
🤖
Search Engine Bots
Googlebot, Bingbot, DuckDuckBot
🎮
Gaming & Smart TV
PlayStation, Xbox, Samsung TV, LG WebOS

How to Use This Tool

  1. Select a category: Choose from desktop browsers, mobile devices, search engine bots, or gaming consoles. Select "All Categories" for maximum variety.
  2. Set the quantity: Generate from 1 to 100 User-Agent strings at once. Higher numbers provide better rotation pools for scraping.
  3. Enable unique mode: When checked, ensures no duplicate User-Agents in the output (recommended for rotation pools).
  4. Generate: Click the button to create random User-Agents based on your settings.
  5. Copy or export: Use individual copy buttons, copy all at once, or export as JSON/text files for integration with your tools.

Integration Examples

Python (Requests Library)

import requests

user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36..."
headers = {"User-Agent": user_agent}
response = requests.get("https://example.com", headers=headers)

JavaScript (Node.js)

const axios = require('axios');

const userAgent = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)...";
axios.get('https://example.com', {
  headers: { 'User-Agent': userAgent }
});

cURL

curl -H "User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_0...)" https://example.com

Frequently Asked Questions

What is a User-Agent string?

A User-Agent (UA) string is a text identifier sent by web browsers and other HTTP clients to identify themselves to web servers. It typically contains information about the browser type, version, operating system, and device. Websites use this information to deliver optimized content, track analytics, or implement browser-specific features.

Why would I need random User-Agent strings?

Random User-Agent strings are commonly used for web scraping to avoid detection, compatibility testing across different browsers, load testing with realistic client diversity, SEO tool development, and bot detection system testing. They help developers simulate traffic from various browsers and devices without needing physical access to each one.

Are these User-Agent strings realistic?

Yes, all User-Agent strings generated by this tool are based on real browser signatures from current versions of Chrome, Firefox, Safari, Edge, and other popular browsers. They include accurate version numbers, platform identifiers, and rendering engine information that match actual browser behavior.

Why do so many Chrome User-Agents look identical?

Since the User-Agent reduction, Chrome, Edge and Samsung Internet send only the major version followed by .0.0.0, a frozen Windows NT 10.0 token (Windows 11 included) and, on Android, Android 10; K instead of the phone model. Safari freezes the macOS and iOS version as well. A current Chrome on Windows therefore has exactly one User-Agent per version, and a realistic pool has far fewer distinct strings than older lists suggest. The generator tells you when your selection runs out of distinct strings.

Can I generate User-Agents for mobile devices?

Absolutely! This tool supports mobile User-Agents for iOS Safari, Android Chrome, Firefox for Android, Samsung Browser, and more. You can select the Mobile Browsers category to generate mobile-specific User-Agent strings that simulate iPhones, iPads, and various Android devices.

What search engine bots are supported?

The tool can generate User-Agent strings for major search engine crawlers including Googlebot (desktop and mobile), Bingbot, YandexBot, DuckDuckBot, and social media bots like Facebook and Twitter crawlers. These are useful for testing how your website responds to search engine visits.

Best Practices

Technical Details

This generator uses server-side randomization with Python's random module to select from a curated database of User-Agent templates. Each template includes:

Additional Resources

Reference this content, page, or tool as:

"Random User-Agent Generator" at https://MiniWebtool.com/random-user-agent-generator/ from MiniWebtool, https://MiniWebtool.com/

by miniwebtool team. Updated: Jan 25, 2026

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