12 Pure CSS Patterns For Backgrounds – pattern.css
The pattern.css library provides 12 CSS only, seamless patterns for backgrounds of any containers and even text.
JavaScript & CSS background
Create An Interactive Particle Background With JavaScript – ak-kaleidoscope
ak-kaleidoscope is a tiny yet customizable particle plugin to create an interactive, animated particle background that responds to mouse move events.
Fix Color Banding In Gradient Background Using Noisy-Gradient Library
Noisy-Gradient is a JavaScript library created to fix the color banding by adding noise to the gradient background using WebGL.
Generate Polygon Patterns From Triangles – Trianglify
Trianglify is a pure JavaScript library for generating colorful polygon (geometric) patterns from triangles based on SVG, Canvas, or PNG.
Create Auto Moving Backgrounds In Pure JavaScript – slizer.js
slizer.js is a lightweight JavaScript plugin to automatically scroll the background image of a container just like a carousel. Great for panoramic backgrounds.
Create A Background Particles System With JavaScript And Canvas – nodes.js
The nodes.js JavaScript library lets you create a particles system with animated nodes and connecting lines for the background.
Animated Gradient Background In Pure CSS – Auroral.css
The Auroral.css library allows to create smooth animated gradient background using CSS3 transitions, transforms and animations.
Create Animated Gradient Background With JavaScript – gradientify.js
gradientify.js is a small JavaScript plugin which makes use of plain HTML and CSS to create an animated gradient background for any container element.
Interactive Blurry Background In Vanilla JavaScript – Brusher
Brusher is a fancy vanilla JavaScript library to create an interactive background that allows you to reveal the blurred background image with a brush effect.
Animated Particles Background With Pure JavaScript
This is a simple script to generate responsive, random, CSS3 animated particles (balls) for your background.