Placemat - Pretty nice placeholder images.
Placeholder Loader Creator - SVG component editor to create placeholder loaders
placeholder.pics - Lightest way to include placeholder images in your design
Khaled Ipsum - DJ Khaled lorem ipsum placeholder text generator
Plaiceholder - Beautiful pure CSS image placeholders, without the hassle.
Lorem.Space - Lorem.space generates random placeholder images for your design layout in useful categories and custom sizes.