Trianglify: Generate colorful triangle meshes
Trianglify is a JavaScript library that lets you create colorful triangle meshes automatically, which you can then use as CSS backgrounds, or SVG images. There are controls for noise, cell size, and cell padding, and of course the whole thing is open source.
Trianglify
Trianglify is a library that I wrote to generate nice SVG background images like this one:
It was inspired by btmills/geopattern, and uses d3.js to build the polygons and SVG and SVG filters for rendering. It also includes the colorbrewer color palette library to get you up and running quickly. It was written in a single day because I got fed up with Adobe Illustrator.
Demo:
Official: http://qrohlf.com/trianglify
nixterrimus also made a nice demo app: link (source)