diff --git a/templates/index.html b/templates/index.html
index e9aea92..7087018 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -7,6 +7,9 @@
 	<br><br>
 	Please note that while we do not keep a copy of your image,<br>
 	there is no way that you could be certain about this: act accordingly.
+	<br><br>
+	If you have the option, always run <a href="https://0xacab.org/jvoisin/mat2">mat2</a>
+	on your local device instead!<br>
 </p>
 <details>
 	<summary>Click <span class='fakelink'>here</span> so see the supported formats</summary>