If you haven’t already implemented it in one of your own apps, you’ve almost certainly used a site that uses Gravatar, an Automattic-maintained project that provides the web with Globally-recognized avatars. WordPress sites naturally use them for author and commenter avatars, but Gravatars are also used by major sites like Stack Overflow, GitHub, and more.
For maximum portability, Gravatars are always square and can be automatically resized to fit most applications. Defaults can be specified, including several types of uniquely-generated avatars including identicons, wavatars, and the 8-bit inspired “retro” avatars. Let’s take a look at how easy it can be to implement Gravatar in your next project, shall we?