ngx-print
Plug n' Play Angular (2++) directive to print your stuff
pretty-html-log
pretty-html-log is a npm module that pretty prints a raw html string to the console. It indents and highlights your code.
stringify-object
Stringify an object/array like JSON.stringify just without all the double-quotes
tree-dump
Tree or binary tree printer, print any tree to terminal or debug window
xml-formatter
Converts a XML string into a human readable format (pretty print) while respecting the xml:space attribute