diff --git a/index.html b/index.html
index 5a3a287..04d2e9b 100644
--- a/index.html
+++ b/index.html
@@ -17,6 +17,7 @@
     <div id="welcome" class="welcome">
         <h1>Welcome!</h1>
         <h2>This is my website for tools. The source code can be found on my <a href="https://github.com/zyqunix/tools" target="_blank">GitHub!</a></h2>
+        <h3>Clicking "Test It" will open the tool in the current tab.</h3>
     </div>
 
     <div class="tools-main">