diff --git a/doc/03-cli.md b/doc/03-cli.md
index a5e0d5de4..76f0125f8 100644
--- a/doc/03-cli.md
+++ b/doc/03-cli.md
@@ -408,6 +408,7 @@ php composer.phar show monolog/monolog 1.0.2
 * **--tree (-t):** List your dependencies as a tree. If you pass a package name it will show the dependency tree for that package.
 * **--latest (-l):** List all installed packages including their latest version.
 * **--outdated (-o):** Implies --latest, but this lists *only* packages that have a newer version available.
+* **--no-dev:** Filters dev dependencies from the package list.
 * **--minor-only (-m):** Use with --latest. Only shows packages that have minor SemVer-compatible updates.
 * **--direct (-D):** Restricts the list of packages to your direct dependencies.
 * **--strict:** Return a non-zero exit code when there are outdated packages.
@@ -433,6 +434,7 @@ The color coding is as such:
 * **--strict:** Returns non-zero exit code if any package is outdated.
 * **--minor-only (-m):** Only shows packages that have minor SemVer-compatible updates.
 * **--format (-f):** Lets you pick between text (default) or json output format.
+* **--no-dev:** Do not show outdated dev dependencies.
 
 ## browse / home
 
diff --git a/src/Composer/Command/OutdatedCommand.php b/src/Composer/Command/OutdatedCommand.php
index 599087246..b08c3cb46 100644
--- a/src/Composer/Command/OutdatedCommand.php
+++ b/src/Composer/Command/OutdatedCommand.php
@@ -37,6 +37,7 @@ class OutdatedCommand extends ShowCommand
                 new InputOption('minor-only', 'm', InputOption::VALUE_NONE, 'Show only packages that have minor SemVer-compatible updates. Use with the --outdated option.'),
                 new InputOption('format', 'f', InputOption::VALUE_REQUIRED, 'Format of the output: text or json', 'text'),
                 new InputOption('ignore', null, InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY, 'Ignore specified package(s). Use it with the --outdated option if you don\'t want to be informed about new versions of some packages.'),
+                new InputOption('no-dev', null, InputOption::VALUE_NONE, 'Disables search in require-dev packages.'),
             ))
             ->setHelp(
                 <<<EOT
@@ -77,6 +78,9 @@ EOT
         if ($input->getOption('minor-only')) {
             $args['--minor-only'] = true;
         }
+        if ($input->getOption('no-dev')) {
+            $args['--no-dev'] = true;
+        }
         $args['--format'] = $input->getOption('format');
         $args['--ignore'] = $input->getOption('ignore');
 
diff --git a/src/Composer/Command/ShowCommand.php b/src/Composer/Command/ShowCommand.php
index 1396a5c7a..5541b53a8 100644
--- a/src/Composer/Command/ShowCommand.php
+++ b/src/Composer/Command/ShowCommand.php
@@ -22,6 +22,7 @@ use Composer\Package\Version\VersionParser;
 use Composer\Package\Version\VersionSelector;
 use Composer\Plugin\CommandEvent;
 use Composer\Plugin\PluginEvents;
+use Composer\Repository\InstalledArrayRepository;
 use Composer\Repository\ComposerRepository;
 use Composer\Repository\CompositeRepository;
 use Composer\Repository\PlatformRepository;
@@ -81,6 +82,7 @@ class ShowCommand extends BaseCommand
                 new InputOption('direct', 'D', InputOption::VALUE_NONE, 'Shows only packages that are directly required by the root package'),
                 new InputOption('strict', null, InputOption::VALUE_NONE, 'Return a non-zero exit code when there are outdated packages'),
                 new InputOption('format', 'f', InputOption::VALUE_REQUIRED, 'Format of the output: text or json', 'text'),
+                new InputOption('no-dev', null, InputOption::VALUE_NONE, 'Disables search in require-dev packages.'),
             ))
             ->setHelp(
                 <<<EOT
@@ -195,8 +197,18 @@ EOT
             $installedRepo = new InstalledRepository(array($lockedRepo));
             $repos = new CompositeRepository(array_merge(array($installedRepo), $composer->getRepositoryManager()->getRepositories()));
         } else {
-            $repos = $installedRepo = new InstalledRepository(array($this->getComposer()->getRepositoryManager()->getLocalRepository()));
-            $rootPkg = $this->getComposer()->getPackage();
+            // --installed / default case
+            if (!$composer) {
+                $composer = $this->getComposer();
+            }
+            $rootPkg = $composer->getPackage();
+            $repos = $installedRepo = new InstalledRepository(array($composer->getRepositoryManager()->getLocalRepository()));
+
+            if ($input->getOption('no-dev')) {
+                $packages = $this->filterRequiredPackages($installedRepo, $rootPkg);
+                $repos = $installedRepo = new InstalledRepository(array(new InstalledArrayRepository(array_map(function ($pkg) { return clone $pkg; }, $packages))));
+            }
+
             if (!$installedRepo->getPackages() && ($rootPkg->getRequires() || $rootPkg->getDevRequires())) {
                 $io->writeError('<warning>No dependencies installed. Try running composer install or update.</warning>');
             }
@@ -1221,4 +1233,31 @@ EOT
 
         return $this->repositorySet;
     }
+
+    /**
+     * Find package requires and child requires
+     *
+     * @param  RepositoryInterface $repo
+     * @param  PackageInterface    $package
+     * @param  array               $bucket
+     * @return array
+     */
+    private function filterRequiredPackages(RepositoryInterface $repo, PackageInterface $package, $bucket = array())
+    {
+        $requires = $package->getRequires();
+
+        foreach ($repo->getPackages() as $candidate) {
+            foreach ($candidate->getNames() as $name) {
+                if (isset($requires[$name])) {
+                    if (!in_array($candidate, $bucket, true)) {
+                        $bucket[] = $candidate;
+                        $bucket = $this->filterRequiredPackages($repo, $candidate, $bucket);
+                    }
+                    break;
+                }
+            }
+        }
+
+        return $bucket;
+    }
 }