Node.JS static file web server. Put it in your path to fire up servers in any directory, takes an optional port argument.

static_server.js

/* Adapted from: https://gist.github.com/1926868 */

var http = require('http')
  , url = require('url')
  , path = require('path')
  , fs = require('fs')
  , mime = require('mime')
  , port = process.argv[2] || 8888

http.createServer(function (request, response) {

  var uri = url.parse(request.url).pathname
    , filename = path.join(process.cwd(), uri)

  fs.exists(filename, function (exists) {
    if (!exists) {
      response.writeHead(404, {'Content-Type': 'text/plain'})
      response.write('404 Not Found\n')
      response.end()
      return
    }

    if (fs.statSync(filename).isDirectory()) {
      filename += '/index.html'
    }

    fs.readFile(filename, 'binary', function (err, file) {
      if (err) {
        response.writeHead(500, {'Content-Type': 'text/plain'})
        response.write(err + '\n')
        response.end()
        return
      }

      response.writeHead(200, {'Content-Type': mime.lookup(filename)})
      response.write(file, 'binary')
      response.end()
    })
  })
}).listen(parseInt(port, 10))