diff --git a/src/Debug/Debugger.php b/src/Debug/Debugger.php
new file mode 100644
--- /dev/null
+++ b/src/Debug/Debugger.php
@@ -0,0 +1,32 @@
+<?php
+declare(strict_types=1);
+
+namespace Keruald\OmniTools\Debug;
+
+class Debugger {
+
+    /**
+     * Prints human-readable information about a variable, wrapped in a <pre> block
+     *
+     * @param mixed $variable the variable to dump
+     */
+    public static function printVariable ($variable) : void {
+        echo "<pre class='debug'>";
+        print_r($variable);
+        echo "</pre>";
+    }
+
+    public static function printVariableAndDie ($variable) : void {
+        static::printVariable($variable);
+        die;
+    }
+
+    ///
+    /// Comfort debug helper to register debug method in global space
+    ///
+
+    public static function register () : void {
+        require_once '_register_to_global_space.php';
+    }
+
+}
diff --git a/src/Debug/_register_to_global_space.php b/src/Debug/_register_to_global_space.php
new file mode 100644
--- /dev/null
+++ b/src/Debug/_register_to_global_space.php
@@ -0,0 +1,17 @@
+<?php
+
+/* This code is intentionnally left in the global namespace. */
+
+use Keruald\OmniTools\Debug\Debugger;
+
+if (!function_exists("dprint_r")) {
+    function dprint_r ($variable) {
+        Debugger::printVariable($variable);
+    }
+}
+
+if (!function_exists("dieprint_r")) {
+    function dieprint_r ($variable) {
+        Debugger::printVariableAndDie($variable);
+    }
+}
diff --git a/tests/Debug/DebuggerTest.php b/tests/Debug/DebuggerTest.php
new file mode 100644
--- /dev/null
+++ b/tests/Debug/DebuggerTest.php
@@ -0,0 +1,27 @@
+<?php
+declare(strict_types=1);
+
+namespace Keruald\OmniTools\Tests\Debug;
+
+
+use Keruald\OmniTools\Debug\Debugger;
+use PHPUnit\Framework\TestCase;
+
+class DebuggerTest extends TestCase {
+
+    public function testRegister () {
+        $this->assertTestSuiteStateIsValid();
+
+        Debugger::register();
+
+        $this->assertTrue(function_exists("dprint_r"));
+    }
+
+    private function assertTestSuiteStateIsValid() : void {
+        $this->assertFalse(
+            function_exists("dprint_r"),
+            "Configure the test suite so dprint_r isn't in global space first."
+        );
+    }
+
+}