diff --git a/app/__init__.py b/app/__init__.py
index 4b54b9a..8299eab 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -246,6 +246,15 @@ def create_app():
         else:
             return render_template('common/404.html'), e.code
 
+    @app.errorhandler(413)
+    def _handle_413(e):
+        if request.path.startswith('/hyperapi/'):
+            return '<h1>request body too large</h1>', e.code
+        elif request.path.startswith('/api/'):
+            return {'error': 'body too large'}, e.code
+        else:
+            return render_template('common/413.html'), e.code
+
     # this only happens at build time but
     # build time is when updates are done anyway
     # sooo... /shrug
diff --git a/app/templates/common/413.html b/app/templates/common/413.html
new file mode 100644
index 0000000..53abcad
--- /dev/null
+++ b/app/templates/common/413.html
@@ -0,0 +1,8 @@
+{% extends 'base.html' %}
+{% block title %}not found{% endblock %}
+{% block content %}
+  <div class="darkbg settings-container">
+  	<h1 class="thread-title">413 Request Entity Too Large</h1>
+  	<p>The file(s) you tried to upload are too large.</p>
+  </div>
+{% endblock %}