ImagesLoaded is a JavaScript library developed by David DeSandro, designed to detect when images have been fully loaded within a webpage. It is particularly useful for developers who need to trigger actions after images are completely loaded to ensure that the layout is rendered correctly. The library is lightweight and can be easily integrated into web projects, providing event callbacks for each image load event. Its official website, https://imagesloaded.desandro.com/, offers detailed documentation, examples, and options for downloading or installing the library via package managers like npm.