Filtron - Create and share your own photo filters on Mac & iPhone
Web Gradients - Curated collection of 180 free fresh background gradients 🚀
CSSCO - VSCO Filters with CSS
CSSGradient.io - As a free css gradient generator tool, this website lets you create a colorful gradient background for your website, blog, or social media profile.
Instagram.css - Complete set of Instagram filters in pure CSS
Mesh Gradients by ls.graphics - Free, handmade mesh gradients for your next project 🍭