normalize-path
Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.
unixify
Convert Windows file paths to unix paths.
is-relative
Returns `true` if the path appears to be relative.
is-absolute
Returns true if a file path is absolute. Does not rely on the path module and can be used as a polyfill for node.js native `path.isAbolute`.
upath2
A proxy to `path`, replacing `\` with `/` for all results