Favicon Generator : Upload an image (GIF, JPEG or PNG) and convert it to a Windows favicon (.ico)
TinaCMS : Tina is an open-source site editing toolkit for React-based sites like Next.js & Gatsby to build content management directly into your website.
Rove : Rove.io is a service that allows you to pregenerate typical Vagrant builds.
MyOSMatic : This is a free software web service that allows you to generate maps of cities using OpenStreetMap data. The generated maps are available in PNG, PDF ...
A fast static site generator in a single binary with everything built-in.