diff --git a/src/resources/500.html b/src/resources/500.html
new file mode 100644
index 0000000..09f230b
--- /dev/null
+++ b/src/resources/500.html
@@ -0,0 +1,65 @@
+<!DOCTYPE html><!-- "' --></script></style></noscript></xmp>
+<meta charset="utf-8">
+<meta name="robots" content="noindex">
+<title>Server Error</title>
+
+<style>
+	#error-body { background: white; width: 500px; margin: 70px auto; padding: 10px 20px }
+	#error-body h1 { font: bold 47px/1.5 sans-serif; background: none; color: #333; margin: .6em 0 }
+	#error-body p { font: 21px/1.5 Georgia,serif; background: none; color: #333; margin: 1.5em 0 }
+	#error-body small { font-size: 70%; color: gray }
+</style>
+
+<div id="error-body">
+	<h1>Server Error</h1>
+
+	<p>We're sorry! The server encountered an internal error and
+		was unable to complete your request. Please try again later.</p>
+
+	<p><small>HTTP 500 - Internal Server Error</small></p>
+</div>
+
+
+<?php
+
+/**
+ * Default error page.
+ */
+
+declare(strict_types=1);
+
+namespace Tracy;
+
+/**
+ * @var bool $logged
+ */
+?>
+<!DOCTYPE html><!-- "' --></textarea></script></style></pre></xmp></a></audio></button></canvas></datalist></details></dialog></iframe></listing></meter></noembed></noframes></noscript></optgroup></option></progress></rp></select></table></template></title></video>
+<meta charset="utf-8">
+<meta name=robots content=noindex>
+<meta name=generator content="Tracy">
+<title>Server Error</title>
+
+<style>
+	#tracy-error { all: initial; position: absolute; top: 0; left: 0; right: 0; height: 70vh; min-height: 400px; display: flex; align-items: center; justify-content: center; z-index: 1000 }
+	#tracy-error div { all: initial; max-width: 550px; background: white; color: #333; display: block }
+	#tracy-error h1 { all: initial; font: bold 50px/1.1 sans-serif; display: block; margin: 40px }
+	#tracy-error p { all: initial; font: 20px/1.4 sans-serif; margin: 40px; display: block }
+	#tracy-error small { color: gray }
+	#tracy-error small span { color: silver }
+</style>
+
+<div id=tracy-error>
+	<div>
+		<h1>Server Error</h1>
+
+		<p>We're sorry! The server encountered an internal error and
+			was unable to complete your request. Please try again later.</p>
+
+		<p><small>error 500 <span> | <?php echo date('j. n. Y H:i') ?></span><?php if (!$logged): ?><br>Tracy is unable to log error.<?php endif ?></small></p>
+	</div>
+</div>
+
+<script>
+	document.body.insertBefore(document.getElementById('tracy-error'), document.body.firstChild);
+</script>
diff --git a/src/resources/500.json b/src/resources/500.json
new file mode 100644
index 0000000..fe77d85
--- /dev/null
+++ b/src/resources/500.json
@@ -0,0 +1,4 @@
+{
+  "code": 500,
+  "error": "Internal server error"
+}
diff --git a/src/resources/500.txt b/src/resources/500.txt
new file mode 100644
index 0000000..75534ad
--- /dev/null
+++ b/src/resources/500.txt
@@ -0,0 +1 @@
+Internal server error
