jsesc
Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.
cssesc
A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.
regenerate
Generate JavaScript-compatible regular expressions based on a given set of Unicode symbols or code points.
gzip-size
Get the gzipped size of a string or buffer
npm-run-all
A CLI tool to run multiple npm-scripts in parallel or sequential.