Awesome

path2

Works exactly same as Node's path, with following improvements:

Both windows and posix versions can be accessed in any environment program is run. For windows version require path2/windows for posix path2/posix.
Doesn't depend on existence of process object and can safely be used in any enviroment (e.g. browser) which does not provide it. If process.cwd is not accessible, / or _C:_ (for windows) are used as current working directory
Each function is provided as an individual module, so only modules that are needed, can be required e.g. path2/resolve or specifically posix version: path2/posix/resolve

One additional function, not present in native path, is provided:

Resolves common path for given path arguments:

path.common('/lorem/ipsum/foo/bar', '/lorem/ipsum/raz/dwa',
  '/lorem/elo/foo/bar'); //  => '/lorem'

path.common is proposed to be included in native path

In your project path:

$ npm install path2

You can easily bundle path2 for browser with any CJS bundler, e.g. modules-webmake

$ npm test