Online javascript beautifier : Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.
Photon : UI toolkit for building desktop apps with Electron.
YAML Builder : A tool for visual layout development of YAML based CSS layouts
Electron : Build cross platform desktop apps with web technologies
Kickstrap : Twitter's Bootstrap with themes, apps, and other enhancements
Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.