diff --git a/_includes/download/board.html b/_includes/download/board.html
index 88032d2a..20bc8a43 100644
--- a/_includes/download/board.html
+++ b/_includes/download/board.html
@@ -220,7 +220,7 @@ By the way, boolean operation precedence is right to left! (yeesh)
   </li>
   <li>Upload <b>combined.bin</b> (Google Chrome 89 or newer):
    <ul>
-    <li>Open <a href="https://nabucasa.github.io/esp-web-flasher/">ESP Web Flasher</a> in a new window/tab.</li>
+    <li>Open <a href="https://adafruit.github.io/Adafruit_WebSerial_ESPTool/">ESP Web Flasher</a> in a new window/tab.</li>
     <li>Select <b>460800 Baud</b> from the pull-down menu (top-right).</li>
     <li>Click <b>Connect</b> (top-right).</li>
     <li>Select the COM or Serial port from the pop-up window.</li>
diff --git a/assets/javascript/espinstaller.js b/assets/javascript/espinstaller.js
new file mode 100644
index 00000000..e69de29b