3D Icons is a website by iconshock that offers a collection of over 4000 icons in a 3D style. These icons are designed in high 4K resolution and feature both front and perspective views. The website provides icons and characters in various categories, including general purpose, social media, isometric, and 3D characters. The icons are meticulously designed with attention to detail and new additions are made regularly. Users can customize the colors using the included Figma file and choose from five different color palettes.