Cool Backgrounds is a free collection of generators for colorful hero and website backgrounds: polygon patterns (Trianglify), particle animations, CSS gradients, and topography-style textures.
Each generator lets you adjust colors, size, and arrangement before downloading as SVG or PNG, so a background isn't just picked from a static gallery but tuned to match a specific project's palette.
Designers and developers who need a distinctive, procedurally generated header or hero background without commissioning custom artwork.
Generated images work as full desktop wallpapers too, not merely website headers, so it's worth checking even for non-web projects needing a colorful background.
A curated selection of cool backgrounds for blogs and websites.
