Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
Metalsmith - An extremely simple, pluggable static site generator.
Noizio - Feeling that the noise of the big city is too much for you to bear?
Nikola - Nikola is s static site generator tool written in Python.
zenmix.io - Ambient background sound generator
Assemble - The static site generator for Node.js, Grunt.js and Yeoman