diff --git a/src/Joomlatools/Console/Application.php b/src/Joomlatools/Console/Application.php
index fcfdcaec..8a065734 100644
--- a/src/Joomlatools/Console/Application.php
+++ b/src/Joomlatools/Console/Application.php
@@ -135,6 +135,7 @@ protected function getDefaultCommands()
             new Command\Site\Delete(),
             new Command\Site\Download(),
             new Command\Site\Install(),
+            new Command\Site\Listing(),
             new Command\Site\Token(),
 
             new Command\Vhost\Create(),
diff --git a/src/Joomlatools/Console/Command/Site/Listing.php b/src/Joomlatools/Console/Command/Site/Listing.php
new file mode 100644
index 00000000..bd38aad7
--- /dev/null
+++ b/src/Joomlatools/Console/Command/Site/Listing.php
@@ -0,0 +1,144 @@
+<?php
+/**
+ * @copyright	Copyright (C) 2007 - 2016 Johan Janssens and Timble CVBA. (http://www.timble.net)
+ * @license		Mozilla Public License, version 2.0
+ * @link		http://github.com/joomlatools/joomlatools-console for the canonical source repository
+ */
+
+namespace Joomlatools\Console\Command\Site;
+
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+use Joomlatools\Console\Command\Database;
+
+class Listing extends Database\AbstractDatabase
+{
+    protected function configure()
+    {
+        $this
+            ->setName('site:list')
+            ->setDescription('List Joomla sites')
+            ->addOption(
+                'format',
+                null,
+                InputOption::VALUE_OPTIONAL,
+                'The output format (txt or json)',
+                'txt'
+            )
+            ->addOption(
+                'www',
+                null,
+                InputOption::VALUE_REQUIRED,
+                "Web server root",
+                '/var/www'
+            )
+            ->setHelp('List Joomla sites running on this box');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        define('_JEXEC', true);
+        define('JPATH_BASE', true);
+        define('JPATH_PLATFORM', true);
+
+        $docroot = $input->getOption('www');
+
+        if (!file_exists($docroot)) {
+            throw new \RuntimeException(sprintf('Web server root \'%s\' does not exist.', $docroot));
+        }
+
+        $dir = new \DirectoryIterator($docroot);
+        $sites = array();
+
+        $canonical = function($version) {
+            if (isset($version->RELEASE)) {
+                return 'v' . $version->RELEASE . '.' . $version->DEV_LEVEL;
+            }
+
+            // Joomla 3.5 and up uses constants instead of properties in JVersion
+            $className = get_class($version);
+            if (defined("$className::RELEASE")) {
+                return 'v'. $version::RELEASE . '.' . $version::DEV_LEVEL;
+            }
+
+            return 'unknown';
+        };
+
+        foreach ($dir as $fileinfo)
+        {
+            $code = $application = null;
+
+            if ($fileinfo->isDir() && !$fileinfo->isDot())
+            {
+                $files = array(
+                    'joomla-cms'           => $fileinfo->getPathname() . '/libraries/cms/version/version.php',
+                    'joomlatools-platform' => $fileinfo->getPathname() . '/lib/libraries/cms/version/version.php',
+                    'joomla-1.5'           => $fileinfo->getPathname() . '/libraries/joomla/version.php'
+                );
+
+                foreach ($files as $type => $file)
+                {
+                    if (file_exists($file))
+                    {
+                        $code        = $file;
+                        $application = $type;
+
+                        break;
+                    }
+                }
+
+                if (!is_null($code) && file_exists($code))
+                {
+                    $identifier = uniqid();
+
+                    $source = file_get_contents($code);
+                    $source = preg_replace('/<\?php/', '', $source, 1);
+                    $source = preg_replace('/class JVersion/i', 'class JVersion' . $identifier, $source);
+
+                    eval($source);
+
+                    $class   = 'JVersion'.$identifier;
+                    $version = new $class();
+
+                    $sites[] = (object) array(
+                        'name'    => $fileinfo->getFilename(),
+                        'docroot' => $docroot . '/' . $fileinfo->getFilename() . '/' . ($application == 'joomlatools-platform' ? 'web' : ''),
+                        'type'    => $application,
+                        'version' => $canonical($version)
+                    );
+                }
+            }
+        }
+
+        if (!in_array($input->getOption('format'), array('txt', 'json'))) {
+            throw new \InvalidArgumentException(sprintf('Unsupported format "%s".', $input->getOption('format')));
+        }
+
+
+
+        switch ($input->getOption('format'))
+        {
+            case 'json':
+                $result = new \stdClass();
+                $result->command = $input->getArgument('command');
+                $result->data    = $sites;
+
+                $options = (version_compare(phpversion(),'5.4.0') >= 0 ? JSON_PRETTY_PRINT : 0);
+                $string  = json_encode($result, $options);
+                break;
+            case 'txt':
+            default:
+                $lines = array();
+                foreach ($sites as $i => $site) {
+                    $lines[] = sprintf("<info>%s. %s</info> (%s %s)", ($i+1), $site->name, $site->type, $site->version);
+                }
+
+                $string = implode("\n", $lines);
+                break;
+        }
+
+        $output->writeln($string);
+    }
+}