Metalsmith - An extremely simple, pluggable static site generator.
Nikola - Nikola is s static site generator tool written in Python.
White Noise - White Noise to help you sleep and games to wake you up.
GatsbyJS - Blazing-fast static site generator for React
SleepJet - Plane ambient sounds to fall asleep ✈️
Hexo - A fast, simple & powerful blog framework, powered by Node.js