diff --git a/classes.php b/classes.php
index d863df9..af21eba 100644
--- a/classes.php
+++ b/classes.php
@@ -2,197 +2,253 @@
 
 abstract class AbstractAction
 {
-	protected $value;
+    protected $value;
 
-	protected $container;
+    protected $container;
 
-	protected $formatter;
+    protected $formatter;
 
-	public function __construct( $value )
-	{
-		$this->value = $value;
-	}
+    public function __construct( $value )
+    {
+        $this->value = $value;
+    }
 
-	public function setContainer( ContainerInterface $container )
-	{
-		$this->container = $container;
-	}
+    public function setContainer( ContainerInterface $container )
+    {
+        $this->container = $container;
+    }
 
-	public function setFormatter( FormatterInterface $formatter )
-	{
-		$this->formatter = $formatter;
-	}
+    public function setFormatter( FormatterInterface $formatter )
+    {
+        $this->formatter = $formatter;
+    }
 
-	public function esc_raw()
-	{
-		return htmlentities( $this->value );
-	}
+    public function esc_raw()
+    {
+        return htmlentities( $this->value );
+    }
 
-	abstract public function decode();
+    abstract public function decode();
 
-	public function __toString()
-	{
-		$value = $this->decode();
-		$formatted = $this->formatter->format( $value );
-		return $this->container->wrap( $formatted );
-	}
+    public function __toString()
+    {
+        $value = $this->decode();
+        $formatted = $this->formatter->format( $value );
+        return $this->container->wrap( $formatted );
+    }
 }
 
 class ActionQuotedPrintableDecode extends AbstractAction
 {
-	public function __construct( $value )
-	{
-		parent::__construct( $value );
-		$this->setContainer( new TextareaContainer );
-		$this->setFormatter( new EchoFormatter );
-	}
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new TextareaContainer );
+        $this->setFormatter( new EchoFormatter );
+    }
 
-	public function decode()
-	{
-		return quoted_printable_decode( $this->value );
-	}
+    public function decode()
+    {
+        return quoted_printable_decode( $this->value );
+    }
 }
 
 class ActionQuotedPrintableEncode extends AbstractAction
 {
-	public function __construct( $value )
-	{
-		parent::__construct( $value );
-		$this->setContainer( new TextareaContainer );
-		$this->setFormatter( new EchoFormatter );
-	}
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new TextareaContainer );
+        $this->setFormatter( new EchoFormatter );
+    }
 
-	public function decode()
-	{
-		return quoted_printable_encode( $this->value );
-	}
+    public function decode()
+    {
+        return quoted_printable_encode( $this->value );
+    }
 }
 
 class ActionBase64Encode extends AbstractAction
 {
-	public function __construct( $value )
-	{
-		parent::__construct( $value );
-		$this->setContainer( new TextareaContainer );
-		$this->setFormatter( new EchoFormatter );
-	}
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new TextareaContainer );
+        $this->setFormatter( new EchoFormatter );
+    }
 
-	public function decode()
-	{
-		return base64_encode( $this->value );
-	}
+    public function decode()
+    {
+        return base64_encode( $this->value );
+    }
 }
 
 class ActionBase64Decode extends AbstractAction
 {
-	public function __construct( $value )
-	{
-		parent::__construct( $value );
-		$this->setContainer( new TextareaContainer );
-		$this->setFormatter( new EchoFormatter );
-	}
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new TextareaContainer );
+        $this->setFormatter( new EchoFormatter );
+    }
 
-	public function decode()
-	{
-		return base64_decode( $this->value );
-	}
+    public function decode()
+    {
+        return base64_decode( $this->value );
+    }
 }
 
 class ActionUrldecode extends AbstractAction
 {
-	public function __construct( $value )
-	{
-		parent::__construct( $value );
-		$this->setContainer( new TextareaContainer );
-		$this->setFormatter( new EchoFormatter );
-	}
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new TextareaContainer );
+        $this->setFormatter( new EchoFormatter );
+    }
 
-	public function decode()
-	{
-		return urldecode( $this->value );
-	}
+    public function decode()
+    {
+        return urldecode( $this->value );
+    }
 }
 
 class ActionUrlencode extends AbstractAction
 {
-	public function __construct( $value )
-	{
-		parent::__construct( $value );
-		$this->setContainer( new TextareaContainer );
-		$this->setFormatter( new EchoFormatter );
-	}
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new TextareaContainer );
+        $this->setFormatter( new EchoFormatter );
+    }
 
-	public function decode()
-	{
-		return urlencode( $this->value );
-	}
+    public function decode()
+    {
+        return urlencode( $this->value );
+    }
 }
 
 class ActionUnserialize extends AbstractAction
 {
-	public function __construct( $value )
-	{
-		parent::__construct( $value );
-		$this->setContainer( new DivContainer );
-		$this->setFormatter( new DbugFormatter );
-	}
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new DivContainer );
+        $this->setFormatter( new DbugFormatter );
+    }
 
-	public function decode()
-	{
-		return unserialize( $this->value );
-	}
+    public function decode()
+    {
+        return unserialize( $this->value );
+    }
+}
+
+class ActionJsonDecode extends AbstractAction
+{
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new DivContainer );
+        $this->setFormatter( new VarexportFormatter );
+    }
+
+    public function decode()
+    {
+        return json_decode( $this->value, true );
+    }
+}
+
+class ActionJsonEncode extends AbstractAction
+{
+    public function __construct( $value )
+    {
+        parent::__construct( $value );
+        $this->setContainer( new TextareaContainer );
+        $this->setFormatter( new EchoFormatter );
+    }
+
+    public function decode()
+    {
+        return json_encode( $this->value );
+    }
 }
 
 interface ContainerInterface
 {
-	public function wrap( $contents );
+    public function wrap( $contents );
 }
 
 class DivContainer implements ContainerInterface
 {
-	public function wrap( $contents )
-	{
-		return '<div class="col">' . $contents . '</div>';
-	}
+    public function wrap( $contents )
+    {
+        return '<div class="col">' . $contents . '</div>';
+    }
 }
 
 class TextareaContainer extends DivContainer
 {
-	public function wrap( $contents )
-	{
-		return parent::wrap( '<textarea>' . htmlentities($contents) . '</textarea>' );
-	}
+    public function wrap( $contents )
+    {
+        return parent::wrap( '<textarea>' . htmlentities($contents) . '</textarea>' );
+    }
 }
 
 interface FormatterInterface
 {
-	public function format( $value );
+    public function format( $value );
 }
 
-class DbugFormatter implements FormatterInterface
-{
-	public function format( $value )
-	{
-		ob_start();
-		new dBug( $value );
-		return ob_get_clean();
-	}
+abstract class BufferedFormatter implements FormatterInterface {
+    const ESCAPE = false;
+
+    public function format( $value ) {
+        ob_start();
+        $this->bufferedFormat( $value );
+        $output = ob_get_clean();
+
+        if (static::ESCAPE) {
+            $output = '<pre>' . htmlentities($output) . '</pre>';
+        }
+
+        return $output;
+    }
+
+    abstract public function bufferedFormat( $value );
 }
 
-class VardumpFormatter implements FormatterInterface
+class DbugFormatter extends BufferedFormatter
 {
-	public function format( $value )
-	{
-		ob_start();
-		var_dump( $value );
-		return ob_get_clean();
-	}
+    public function bufferedFormat( $value )
+    {
+        new dBug( $value );
+    }
+}
+
+class VardumpFormatter extends BufferedFormatter
+{
+    const ESCAPE = true;
+
+    public function bufferedFormat( $value )
+    {
+        var_dump( $value );
+    }
 }
 
 class EchoFormatter implements FormatterInterface
 {
-	public function format( $value )
-	{
-		return $value;
-	}
+    public function format( $value )
+    {
+        return $value;
+    }
+}
+
+class VarexportFormatter extends BufferedFormatter
+{
+    const ESCAPE = true;
+
+    public function bufferedFormat( $value )
+    {
+        var_export( $value );
+    }
 }
diff --git a/index.php b/index.php
index da663fe..d742098 100644
--- a/index.php
+++ b/index.php
@@ -37,10 +37,12 @@ if( 'POST' === $_SERVER['REQUEST_METHOD'] ) {
                 <option value="QuotedPrintableDecode" <?php echo selected($action_str, 'QuotedPrintableDecode'); ?>>quoted_printable_decode()</option>
                 <option value="QuotedPrintableEncode" <?php echo selected($action_str, 'QuotedPrintableEncode'); ?>>quoted_printable_encode()</option>
                 <option value="Urlencode" <?php echo selected($action_str, 'Urlencode'); ?>>urlencode()</option>
-                <option value="Urldecode"<?php echo selected($action_str, 'Urldecode'); ?>>urldecode()</option>
-                <option value="Unserialize"<?php echo selected($action_str, 'Unserialize'); ?>>unserialize()</option>
-                <option value="Base64Decode"<?php echo selected($action_str, 'Base64Decode'); ?>>base64_decode()</option>
-                <option value="Base64Encode"<?php echo selected($action_str, 'Base64Encode'); ?>>base64_encode()</option>
+                <option value="Urldecode" <?php echo selected($action_str, 'Urldecode'); ?>>urldecode()</option>
+                <option value="Unserialize" <?php echo selected($action_str, 'Unserialize'); ?>>unserialize()</option>
+                <option value="Base64Decode" <?php echo selected($action_str, 'Base64Decode'); ?>>base64_decode()</option>
+                <option value="Base64Encode" <?php echo selected($action_str, 'Base64Encode'); ?>>base64_encode()</option>
+                <option value="JsonDecode" <?php echo selected($action_str, 'JsonDecode'); ?>>json_decode()</option>
+                <option value="JsonEncode" <?php echo selected($action_str, 'JsonEncode'); ?>>json_encode()</option>
             <select>
             <input type="submit">
         </form>
diff --git a/style.css b/style.css
index 434ab2e..2d08a29 100644
--- a/style.css
+++ b/style.css
@@ -1,28 +1,28 @@
 body {
-	font-family: Verdana, Arial, sans-serif;
-	font-size: 67.5%;
+    font-family: Verdana, Arial, sans-serif;
+    font-size: 12px;
 }
 
 textarea {
-	font-family: Inconsolata, Consolas, Monaco, monospace;
-	font-size: 1.2em;
-	white-space: pre;
-	word-wrap: normal;
-	height: 200px;
-	width: 100%;
+    font-family: Inconsolata, Consolas, Monaco, monospace;
+    font-size: 1.2em;
+    white-space: pre;
+    word-wrap: normal;
+    height: 200px;
+    width: 100%;
 }
 
 h2 {
-	clear: both;
+    clear: both;
 }
 
 .col {
-	margin-right: 1.8%;
-	width: 45%;
-	float: left;
-	padding: 10px;
+    margin-right: 1.8%;
+    width: 45%;
+    float: left;
+    padding: 10px;
 }
 
 .randomness-box {
-	width: 30em;
+    width: 30em;
 }