Lightbox for Gallery amp Image Block is a WordPress plugin designed to enhance image galleries and individual images by adding a lightweight Lightbox effect. Utilizing baguetteBox.js, this plugin requires no additional dependencies and provides a modern, minimalistic interface. It seamlessly integrates with the standard WordPress Gallery and Image Blocks, ensuring that users can easily add a Lightbox feature without altering their existing content. The plugin is free to use and can be deactivated at any time without consequence to the original gallery functionality.

Key features include image caption support, responsiveness, and swipe gesture compatibility, all while maintaining a small file size of approximately 13 KB (7 KB gzipped). The plugin supports various blocks, including the default Gallery and Image Blocks, and requires users to link images to media files for optimal performance. Note that it currently only supports blocks within posts, not in widgets.