Extension Rank Checker is a free Chrome add-on designed for developers to monitor their extension's visibility across different regions. It allows users to check their ranking for specific keywords in the Chrome Web Store, revealing how their extension performs in various countries and languages. This tool is especially useful for indie developers and those looking to optimize their SEO on the platform.

With features such as the ability to check the top 30 search rankings and support for 15 different locales, users can quickly assess their extension's discoverability. The tool integrates seamlessly into the Chrome side panel, enabling ranking checks without disrupting the current workflow. Users can highlight their extension's position in search results, providing a straightforward way to gauge localization performance.