diff --git a/d2js/js/README.md b/d2js/js/README.md
index 76f0132f3..1b7298245 100644
--- a/d2js/js/README.md
+++ b/d2js/js/README.md
@@ -39,6 +39,8 @@ For example,
 yarn add @terrastruct/d2@nightly
 ```
 
+A demo using the nightly build is hosted [here](https://alixander-d2js.web.val.run/).
+
 ## Usage
 
 D2.js uses webworkers to call a WASM file.