diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -6,6 +6,10 @@
 
 The original Dear ImGui demo code from [imgui_demo.cpp](imgui/imgui_demo.cpp) has been ported to [imgui_demo.ts](imgui_demo.ts).  Also, the Memory Editor from the [imgui_club](https://github.com/ocornut/imgui_club) project ([imgui_memory_editor.h](https://github.com/ocornut/imgui_club/blob/master/imgui_memory_editor/imgui_memory_editor.h)) has been ported to [imgui_memory_editor.ts](imgui_memory_editor.ts) and added to the demo for browsing the Emscripten memory space.
 
+[ImGui JavaScript Sandbox](https://codepen.io/flyovergames/pen/zRPeyB)
+
+A [CodePen](https://codepen.io) using the [Ace](https://ace.c9.io) editor to live-edit a window.
+
 ## Support
 If you find this useful, please consider donating to this and the [Dear ImGui](https://github.com/ocornut/imgui) project.  I can also invoice for private support, custom development, etc.