GPS Link is a free Chrome extension developed by Cleansoft that allows users to share their GPS location from their Android phone with their desktop's Chrome browser. This extension is particularly useful for testing HTML5 geolocation applications.

To get started with GPS Link, users need to follow a few simple steps. First, they need to install the extension from the Chrome Web Store. Next, they should install the GPS Link Android app from the Google Play Store. Once both the extension and the app are installed, users can click on the GPS Link icon in their desktop Chrome browser.

From there, users can pair their phone with their desktop using either a QR code or a URL. Once the pairing is complete, the desktop Chrome browser will start using the GPS location from the Android phone for the selected page.

With GPS Link, users can easily test and debug HTML5 geolocation applications without the need for a physical GPS device. It provides a convenient and efficient way to simulate different locations for testing purposes.