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...
stylefmt : stylefmt is a tool that automatically formats your stylesheets.
Mermaid : Mermaid is a Javascript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex d...
JSHint : A JavaScript Code Quality Tool. JSHint is a tool that helps to detect errors and potential problems in your JavaScript code.
Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.