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

'use strict';

const http = require('http');
const url = require('url');
const path = require('path');
const fs = require('fs');
const port = process.argv[2] || 8888;

http.createServer((req, res) => {
  const uri = url.parse(req.url).pathname;
  let filename = path.join(process.cwd(), uri);

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

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

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

      res.writeHead(200);
      res.write(file, 'binary');
      res.end();
    });
  });
}).listen(parseInt(port, 10));

console.log(`Static file server running at => http://localhost:${port}/`);