diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..57872d0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/vendor/
diff --git a/README.md b/README.md
index 59d4058..11e4901 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,17 @@
 # gemini-php
+
 PHP 8 Library for Gemini Protocol
+
+## DokuWiki
+
+### Convert
+
+```
+$dokuwiki = new \Yggverse\Gemini\Dokuwiki();
+
+echo $dokuwiki->toGemini(
+    file_get_contents(
+        'data/pages/index.txt'
+    )
+);
+```
\ No newline at end of file
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..ba906c9
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,14 @@
+{
+    "name": "yggverse/gemini",
+    "description": "PHP 8 Library for Gemini Protocol",
+    "keywords": [ "yggverse", "gemini", "wiki", "dokuwiki", "markdown" ],
+    "homepage": "https://github.com/yggverse/gemini-php",
+    "type": "library",
+    "license": "MIT",
+    "autoload": {
+        "psr-4": {
+            "Yggverse\\Gemini\\": "src/"
+        }
+    },
+    "require": {}
+}
diff --git a/src/Dokuwiki.php b/src/Dokuwiki.php
new file mode 100644
index 0000000..3aa966b
--- /dev/null
+++ b/src/Dokuwiki.php
@@ -0,0 +1,108 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yggverse\Gemini;
+
+class Dokuwiki
+{
+    private array $_dictionary =
+    [
+        // Headers
+        '/^[\s]?#([^#]+)/' => "# $1\n\r",
+        '/^[\s]?##([^#]+)/' => "## $1\n\r",
+        '/^[\s]?###([^#]+)/' => "### $1\n\r",
+        '/^[\s]?####([^#]+)/' => "### $1\n\r",
+        '/^[\s]?#####([^#]+)/' => "### $1\n\r",
+        '/^[\s]?######([^#]+)/' => "### $1\n\r",
+
+        '/^[\s]?[=]{6}([^=]+)[=]{6}/' => "# $1\n\r",
+        '/^[\s]?[=]{5}([^=]+)[=]{5}/' => "## $1\n\r",
+        '/^[\s]?[=]{4}([^=]+)[=]{4}/' => "### $1\n\r",
+        '/^[\s]?[=]{3}([^=]+)[=]{3}/' => "### $1\n\r",
+        '/^[\s]?[=]{2}([^=]+)[=]{2}/' => "### $1\n\r",
+        '/^[\s]?[=]{1}([^=]+)[=]{1}/' => "### $1\n\r",
+
+        // Links
+        // '/\{\{([^\:]+)\:([^\}\}]+)\}\}/' => "=> /$1 $1\n\r", // @TODO
+        '/\{\{indexmenu\>\:([^\}\}]+)\}\}/' => "=> /$1 $1\n\r", // @TODO
+        '/\[\[wp([A-z]{2})\>([^\|]+)\|([^\]\]]+)\]\]/' => "=> https://$1.wikipedia.org/wiki/$2 $3\n\r",
+        '/\[\[wp\>([^\|]+)\|([^\]\]]+)\]\]/' => "=> https://en.wikipedia.org/wiki/$1 $2\n\r",
+        '/\[\[([^|]+)\|([^\]\]]+)\]\]/' => "=> $1 $2\n\r",
+
+        // Tags
+        '/<code>/' => '```',
+        '/<\/code>/' => '```',
+
+        '/<file>/' => '```',
+        '/<file\s-\s([^>]+)>/' => "$1\n\r" . '```',
+        '/<\/file>/' => '```',
+
+        '/[*]+([^*]+)[*]+/' => '*$1*',
+        '/[\'\']+([^\']+)[\'\']+/' => '```$1```',
+
+        // List
+        '/^-/' => '* ',
+
+        // Separators
+        '/[-]+/' => '-',
+        '/[ ]+/' => ' ',
+        '/[\\\]+/' => "\n\r",
+        '/[\n\r]{1,}/' => "\n\r",
+    ];
+
+    public function __construct(?array $dictionary = null)
+    {
+        if ($dictionary)
+        {
+            $this->_dictionary = $dictionary;
+        }
+    }
+
+    public function getDictionary(): array
+    {
+        $this->_dictionary;
+    }
+
+    public function setDictionary(array $dictionary)
+    {
+        $this->_dictionary = $dictionary;
+    }
+
+    public function getRule(string $key, string $value): ?string
+    {
+        $this->_dictionary[$key] = isset($this->_dictionary[$key]) ? $value : null;
+    }
+
+    public function setRule(string $key, string $value): void
+    {
+        $this->_dictionary[$key] = $value;
+    }
+
+    public function toGemini(string $data): string
+    {
+        $lines = [];
+
+        foreach ((array) explode(PHP_EOL, $data) as $line)
+        {
+            $lines[] = trim(
+                preg_replace(
+                    array_keys(
+                        $this->_dictionary
+                    ),
+                    array_values(
+                        $this->_dictionary
+                    ),
+                    trim(
+                        $line
+                    )
+                )
+            );
+        }
+
+        return implode(
+            PHP_EOL,
+            $lines
+        );
+    }
+}
\ No newline at end of file