Rembg is a tool to remove images background.

A collection of animated backgrounds

Background Patterns in CSS.
CSS only library to fill your empty background with beautiful patterns.

pattern.css @ GitHub.

Library for animating image backgrounds in websites using WebGL.

It support the following:

• Configurable dynamic camera
• Animated transitions between backgrounds

• Post-processing effects & particles

  midori @ GitHub

Remove Video Background

Pure CSS Fancy background with gradients

Generate your very own trendy textured background

SVG generator for subtle or not-so-subtle noise textures.
Online SVG Noise Texture Generator by fffuel.

Describe the image you want, and it will magically generate an infinite number of unique backgrounds using stable diffusion that match your exact request

Colored wisps in the background

Beautiful & cool backgrounds with 10+ tools!.
Create unique graphics for social media posts, landing pages and branding in a few clicks. Then export them as images, or even code (SVG & CSS).

Customize and apply backgrounds fast.
SVGs enable fullscreen visuals with a tiny filesize.
Spice up your webpage in 30 seconds.

jQuery plugin that switches background images of a website - can be used as an image slider or a full screen background image switcher as well as image preloader.

Switch the background image with using effect.