Online javascript beautifier : Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.
PurgeCSS : PurgeCSS is a tool to remove unused CSS. It can be part of your development workflow.
chezmoi : Manage your dotfiles across multiple diverse machines, securely.
Botpress : Botpress is an open-source bot creation tool written in Javascript. It is powered by a rich set of open-source modules built by the community. We like...
RegPack : RegPack is a packer intended for use on minified Javascript code.
It is mostly suited to small size constraints (1kb, up to 4kb).
Grunt is a task-based command line build tool for JavaScript projects