IndieBlocks is a free WordPress plugin designed to enhance social networking capabilities by integrating IndieWeb features. It offers a set of blocks including Bookmark, Like, Reply, and Repost, which generate microformatted HTML from URLs, making it easier for microformats clients to interpret post types. The plugin also introduces 'short-form' post types such as Note and Like, providing additional functionality for users aiming to create a more interactive and engaging website.

In addition to the core features, IndieBlocks supports the Webmention protocol, facilitating rich cross-site conversations. It includes its own implementation for Webmentions, while also allowing the use of an alternative plugin. Furthermore, the plugin registers various theme blocks like Facepile, Location, Syndication, and Link Preview that can be utilized in block theme templates, promoting a robust and connected online presence.