diff --git a/config/config.default.php b/config/config.default.php
index ed40aaf9..c0b00715 100644
--- a/config/config.default.php
+++ b/config/config.default.php
@@ -43,6 +43,9 @@ return [
         '1' => 'Engelsystem dark'
     ],
 
+    // Rewrite URLs with mod_rewrite
+    'rewrite_urls'            => true,
+
     // Number of News shown on one site
     'display_news'            => 6,
 
diff --git a/src/Routing/LegacyUrlGenerator.php b/src/Routing/LegacyUrlGenerator.php
new file mode 100644
index 00000000..f17bdf88
--- /dev/null
+++ b/src/Routing/LegacyUrlGenerator.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Engelsystem\Routing;
+
+class LegacyUrlGenerator extends UrlGenerator
+{
+    /**
+     * @param string $path
+     * @param array  $parameters
+     * @return string
+     */
+    public function to($path, $parameters = [])
+    {
+        $page = ltrim($path, '/');
+        if (!empty($page)) {
+            $page = str_replace('-', '_', $page);
+            $parameters = array_merge(['p' => $page], $parameters);
+        }
+
+        $uri = parent::to('index.php', $parameters);
+        $uri = preg_replace('~(/index\.php)+~', '/index.php', $uri);
+
+        return $uri;
+    }
+}
diff --git a/src/Routing/RoutingServiceProvider.php b/src/Routing/RoutingServiceProvider.php
index b7db1383..021840c3 100644
--- a/src/Routing/RoutingServiceProvider.php
+++ b/src/Routing/RoutingServiceProvider.php
@@ -8,7 +8,14 @@ class RoutingServiceProvider extends ServiceProvider
 {
     public function register()
     {
-        $urlGenerator = $this->app->make(UrlGenerator::class);
+        $config = $this->app->get('config');
+        $class = UrlGenerator::class;
+        if (!$config->get('rewrite_urls', true)) {
+            $class = LegacyUrlGenerator::class;
+        }
+
+        $urlGenerator = $this->app->make($class);
         $this->app->instance('routing.urlGenerator', $urlGenerator);
+        $this->app->bind(UrlGeneratorInterface::class, 'routing.urlGenerator');
     }
 }
diff --git a/src/Routing/UrlGenerator.php b/src/Routing/UrlGenerator.php
index 6df52425..8dd52271 100644
--- a/src/Routing/UrlGenerator.php
+++ b/src/Routing/UrlGenerator.php
@@ -2,7 +2,7 @@
 
 namespace Engelsystem\Routing;
 
-class UrlGenerator
+class UrlGenerator implements UrlGeneratorInterface
 {
     /**
      * @param string $path
diff --git a/src/Routing/UrlGeneratorInterface.php b/src/Routing/UrlGeneratorInterface.php
new file mode 100644
index 00000000..d97da30d
--- /dev/null
+++ b/src/Routing/UrlGeneratorInterface.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Engelsystem\Routing;
+
+interface UrlGeneratorInterface
+{
+    /**
+     * @param string $path
+     * @param array  $parameters
+     * @return string
+     */
+    public function to($path, $parameters = []);
+}
diff --git a/src/helpers.php b/src/helpers.php
index 5a48498a..1915eb86 100644
--- a/src/helpers.php
+++ b/src/helpers.php
@@ -5,7 +5,7 @@ use Engelsystem\Application;
 use Engelsystem\Config\Config;
 use Engelsystem\Http\Request;
 use Engelsystem\Renderer\Renderer;
-use Engelsystem\Routing\UrlGenerator;
+use Engelsystem\Routing\UrlGeneratorInterface;
 use Symfony\Component\HttpFoundation\Session\SessionInterface;
 
 /**
@@ -114,7 +114,7 @@ function session($key = null, $default = null)
 /**
  * @param string $path
  * @param array  $parameters
- * @return UrlGenerator|string
+ * @return UrlGeneratorInterface|string
  */
 function url($path = null, $parameters = [])
 {
diff --git a/tests/Unit/HelpersTest.php b/tests/Unit/HelpersTest.php
index 43c29c84..fcb7231d 100644
--- a/tests/Unit/HelpersTest.php
+++ b/tests/Unit/HelpersTest.php
@@ -7,7 +7,7 @@ use Engelsystem\Config\Config;
 use Engelsystem\Container\Container;
 use Engelsystem\Http\Request;
 use Engelsystem\Renderer\Renderer;
-use Engelsystem\Routing\UrlGenerator;
+use Engelsystem\Routing\UrlGeneratorInterface;
 use PHPUnit\Framework\TestCase;
 use PHPUnit_Framework_MockObject_MockObject as MockObject;
 use Symfony\Component\HttpFoundation\Session\Session;
@@ -171,8 +171,7 @@ class HelpersTest extends TestCase
      */
     public function testUrl()
     {
-        $urlGeneratorMock = $this->getMockBuilder(UrlGenerator::class)
-            ->getMock();
+        $urlGeneratorMock = $this->getMockForAbstractClass(UrlGeneratorInterface::class);
 
         $this->getAppMock('routing.urlGenerator', $urlGeneratorMock);
         $this->assertEquals($urlGeneratorMock, url());
diff --git a/tests/Unit/Routing/LegacyUrlGeneratorTest.php b/tests/Unit/Routing/LegacyUrlGeneratorTest.php
new file mode 100644
index 00000000..63e1a3eb
--- /dev/null
+++ b/tests/Unit/Routing/LegacyUrlGeneratorTest.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Engelsystem\Test\Unit\Routing;
+
+use Engelsystem\Application;
+use Engelsystem\Container\Container;
+use Engelsystem\Http\Request;
+use Engelsystem\Routing\LegacyUrlGenerator;
+use Engelsystem\Routing\UrlGeneratorInterface;
+use PHPUnit\Framework\TestCase;
+
+class LegacyUrlGeneratorTest extends TestCase
+{
+    public function provideLinksTo()
+    {
+        return [
+            ['/', 'http://foo.bar/index.php', [], 'http://foo.bar/index.php'],
+            ['/foo-path', 'http://foo.bar/index.php/index.php', [], 'http://foo.bar/index.php?p=foo_path'],
+            ['/foo', 'http://foo.bar/index.php/index.php',  [], 'http://foo.bar/index.php?p=foo'],
+            ['foo', 'http://foo.bar/index.php', ['test' => 'abc'], 'http://foo.bar/index.php?p=foo&test=abc'],
+        ];
+    }
+
+    /**
+     * @dataProvider provideLinksTo
+     * @covers       \Engelsystem\Routing\LegacyUrlGenerator::to
+     *
+     * @param string   $urlToPath
+     * @param string   $willReturn
+     * @param string[] $arguments
+     * @param string   $expectedUrl
+     */
+    public function testTo($urlToPath, $willReturn, $arguments, $expectedUrl)
+    {
+        $app = new Container();
+        Application::setInstance($app);
+
+        $request = $this->getMockBuilder(Request::class)
+            ->getMock();
+
+        $request->expects($this->once())
+            ->method('getUriForPath')
+            ->with('/index.php')
+            ->willReturn($willReturn);
+
+        $app->instance('request', $request);
+
+        $urlGenerator = new LegacyUrlGenerator();
+        $this->assertInstanceOf(UrlGeneratorInterface::class, $urlGenerator);
+
+        $url = $urlGenerator->to($urlToPath, $arguments);
+        $this->assertEquals($expectedUrl, $url);
+    }
+}
diff --git a/tests/Unit/Routing/RoutingServiceProviderTest.php b/tests/Unit/Routing/RoutingServiceProviderTest.php
index dd9441eb..ce3d7290 100644
--- a/tests/Unit/Routing/RoutingServiceProviderTest.php
+++ b/tests/Unit/Routing/RoutingServiceProviderTest.php
@@ -2,10 +2,13 @@
 
 namespace Engelsystem\Test\Unit\Routing;
 
+use Engelsystem\Config\Config;
+use Engelsystem\Routing\LegacyUrlGenerator;
 use Engelsystem\Routing\RoutingServiceProvider;
 use Engelsystem\Routing\UrlGenerator;
+use Engelsystem\Routing\UrlGeneratorInterface;
 use Engelsystem\Test\Unit\ServiceProviderTest;
-use PHPUnit_Framework_MockObject_MockObject;
+use PHPUnit_Framework_MockObject_MockObject as MockObject;
 
 class RoutingServiceProviderTest extends ServiceProviderTest
 {
@@ -14,16 +17,48 @@ class RoutingServiceProviderTest extends ServiceProviderTest
      */
     public function testRegister()
     {
-        /** @var PHPUnit_Framework_MockObject_MockObject|UrlGenerator $urlGenerator */
-        $urlGenerator = $this->getMockBuilder(UrlGenerator::class)
-            ->getMock();
+        $app = $this->getApp(['make', 'instance', 'bind', 'get']);
+        /** @var MockObject|Config $config */
+        $config = $this->getMockBuilder(Config::class)->getMock();
+        /** @var MockObject|UrlGeneratorInterface $urlGenerator */
+        $urlGenerator = $this->getMockForAbstractClass(UrlGeneratorInterface::class);
+        /** @var MockObject|UrlGeneratorInterface $legacyUrlGenerator */
+        $legacyUrlGenerator = $this->getMockForAbstractClass(UrlGeneratorInterface::class);
 
-        $app = $this->getApp();
+        $config->expects($this->atLeastOnce())
+            ->method('get')
+            ->with('rewrite_urls')
+            ->willReturnOnConsecutiveCalls(
+                true,
+                false
+            );
 
-        $this->setExpects($app, 'make', [UrlGenerator::class], $urlGenerator);
-        $this->setExpects($app, 'instance', ['routing.urlGenerator', $urlGenerator]);
+        $this->setExpects($app, 'get', ['config'], $config, $this->atLeastOnce());
+
+        $app->expects($this->atLeastOnce())
+            ->method('make')
+            ->withConsecutive(
+                [UrlGenerator::class],
+                [LegacyUrlGenerator::class]
+            )
+            ->willReturnOnConsecutiveCalls(
+                $urlGenerator,
+                $legacyUrlGenerator
+            );
+        $app->expects($this->atLeastOnce())
+            ->method('instance')
+            ->withConsecutive(
+                ['routing.urlGenerator', $urlGenerator],
+                ['routing.urlGenerator', $legacyUrlGenerator]
+            );
+        $this->setExpects(
+            $app, 'bind',
+            [UrlGeneratorInterface::class, 'routing.urlGenerator'], null,
+            $this->atLeastOnce()
+        );
 
         $serviceProvider = new RoutingServiceProvider($app);
         $serviceProvider->register();
+        $serviceProvider->register();
     }
 }
diff --git a/tests/Unit/Routing/UrlGeneratorTest.php b/tests/Unit/Routing/UrlGeneratorTest.php
index 6da59a4f..8fe0d65f 100644
--- a/tests/Unit/Routing/UrlGeneratorTest.php
+++ b/tests/Unit/Routing/UrlGeneratorTest.php
@@ -6,6 +6,7 @@ use Engelsystem\Application;
 use Engelsystem\Container\Container;
 use Engelsystem\Http\Request;
 use Engelsystem\Routing\UrlGenerator;
+use Engelsystem\Routing\UrlGeneratorInterface;
 use PHPUnit\Framework\TestCase;
 
 class UrlGeneratorTest extends TestCase
@@ -32,7 +33,6 @@ class UrlGeneratorTest extends TestCase
     public function testTo($urlToPath, $path, $willReturn, $arguments, $expectedUrl)
     {
         $app = new Container();
-        $urlGenerator = new UrlGenerator();
         Application::setInstance($app);
 
         $request = $this->getMockBuilder(Request::class)
@@ -45,6 +45,9 @@ class UrlGeneratorTest extends TestCase
 
         $app->instance('request', $request);
 
+        $urlGenerator = new UrlGenerator();
+        $this->assertInstanceOf(UrlGeneratorInterface::class, $urlGenerator);
+
         $url = $urlGenerator->to($urlToPath, $arguments);
         $this->assertEquals($expectedUrl, $url);
     }