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Requirements

Before installing Undetected, ensure your system meets these requirements:
  • Python: Version 3.10 or higher (< 4.0)
  • Chrome/Chromium: A compatible Chromium-based browser installed on your system
  • pip: Python package installer
Undetected automatically detects your installed Chrome version and downloads the matching ChromeDriver. You don’t need to manually install ChromeDriver.

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Install via pip

Install Undetected using pip: 
pip install undetected
This will install Undetected along with its required dependencies:
  • selenium (^4.39.0) - Core WebDriver functionality
  • requests (^2.32.3) - HTTP library for downloading ChromeDriver
  • websockets (^15.0) - WebSocket support for CDP communication
  • packaging (^24.0) - Version parsing utilities

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Verify Installation

After installation, verify that Undetected is working correctly: 
import undetected as uc

# Create a Chrome instance
driver = uc.Chrome()

# Navigate to a test page
driver.get("https://www.google.com")

# Print the page title
print(f"Page title: {driver.title}")

# Clean up
driver.quit()
If this script runs without errors and prints the Google homepage title, your installation is successful!
1

First Run

On first run, Undetected will automatically download and patch the appropriate ChromeDriver version for your browser. This may take a few moments.
2

Binary Caching

The patched ChromeDriver is cached in your system’s application data directory for reuse:
  • Windows: %APPDATA%/roaming/undetected
  • macOS: ~/Library/Application Support/undetected
  • Linux: ~/.local/share/undetected
3

Subsequent Runs

Future runs will use the cached binary, making startup much faster.

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Development Installation

If you want to contribute to Undetected or run from source: 
# Clone the repository
git clone https://github.com/carl0smat3us/undetected.git
cd undetected

# Install Poetry (if not already installed)
pip install poetry

# Install dependencies
poetry install

# Activate the virtual environment
poetry shell

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Troubleshooting

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Chrome Not Found

If you get an error about Chrome not being found, ensure Chrome or a Chromium-based browser is installed on your system. You can specify a custom browser path: 
driver = uc.Chrome(browser_executable_path="/path/to/chrome")

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Permission Errors on Linux

If running as root on Linux, Chrome requires the --no-sandbox flag, which Undetected enables by default. However, it’s recommended to run as a non-root user when possible.

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ChromeDriver Download Fails

If ChromeDriver download fails due to network issues:
  1. Check your internet connection
  2. Verify you can access https://chromedriver.chromium.org
  3. Consider using a custom driver path with pre-downloaded ChromeDriver:
driver = uc.Chrome(driver_executable_path="/path/to/chromedriver")

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Version Compatibility Issues

Ensure your Chrome version is up to date. Very old Chrome versions may have compatibility issues. You can check your Chrome version by visiting chrome://version in your browser.

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Next Steps

Now that Undetected is installed, learn how to use it:

Quick Start Guide

Get started with basic usage examples and best practices