Airport Code Explainer is a free Chrome add-on developed by Gilmore Davidson. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory. This handy extension is designed to help users understand airport codes by providing tooltips with the full airport name.

Many people on social media often mention airport codes when sharing details about their flights. However, these codes can be obscure and not easily understood by everyone. Airport Code Explainer solves this problem by scanning the text on the current page and adding tooltips whenever it encounters an airport code.

To activate the tooltips, simply press the plane icon. It's worth noting that the extension does not run automatically on all pages to avoid false positives for common abbreviations like ATM or PDF.

While the extension is currently simple in its functionality, the developer, Gilmore Davidson, is open to suggestions for improvement. The code for the extension is open source and can be found on GitHub. The airport data used by the extension is provided in the public domain by OurAirports, and the icon used is licensed under CC-BY 4.0 from EmojiOne.

Overall, Airport Code Explainer is a useful Chrome add-on for anyone who wants to quickly understand airport codes while browsing the web.