Prettier : 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 max...
Flow : Adds static typing to JavaScript to improve developer productivity and code quality.
tracing-framework : Rich tools for instrumenting, analyzing, and visualizing web apps.
ack : ack is a tool like grep, optimized for programmers
Designed for programmers with large heterogeneous trees of source code, ack is written purely in po...
Neutrino : Neutrino is a companion tool which lets you build web and Node.js applications with shared presets or configurations. It intends to make the process o...
Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.