WebDriver is an open source tool for automated testing of webapps across many browsers. It provides capabilities for navigating to web pages, user input, JavaScript execution, and more.  ChromeDriver is a standalone server that implements the W3C WebDriver standard. ChromeDriver is available for Chrome on Android and Chrome on Desktop (Mac, Linux, Windows and ChromeOS).  

You can view the current implementation status of the WebDriver standard here.

Latest beta release: ChromeDriver 111.0.5563.19

Latest stable release: ChromeDriver 110.0.5481.77

Getting started with ChromeDriver on Desktop (Windows, Mac, Linux)

ChromeDriver with Android

ChromeDriver with ChromeOS

ChromeOptions, the capabilities of ChromeDriver

Mobile emulation

Security Considerations, with recommendations on keeping ChromeDriver safe

Chrome Extension installation

Verbose logging and performance data logging

Chrome crashes immediately or doesn't start

ChromeDriver crashes

Clicking issues

Operation Not Supported when using remote debugging

The chromedriver-users mailing list for questions, help with troubleshooting, and general discussion. 

StackOverflow chromedriver posts

Guide to our issue tracker and reporting bugs

Contributing to ChromeDriver