diff --git a/.github/workflows/javascript.yml b/.github/workflows/javascript.yml
index 2c261a224..b58684f37 100644
--- a/.github/workflows/javascript.yml
+++ b/.github/workflows/javascript.yml
@@ -83,6 +83,14 @@ jobs:
       - name: Run `test` for all NX packages
         run: yarn test
 
+      - name: Setup Deno
+        uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+
+      - name: Run Deno smoke test
+        run: deno run --allow-read --allow-env javascript/packages/node-wasm/test/deno_smoke.ts
+
       - name: Upload package artifacts
         uses: actions/upload-artifact@v4
         with:
diff --git a/javascript/packages/node-wasm/test/deno_smoke.ts b/javascript/packages/node-wasm/test/deno_smoke.ts
new file mode 100644
index 000000000..17bd6e7fc
--- /dev/null
+++ b/javascript/packages/node-wasm/test/deno_smoke.ts
@@ -0,0 +1,14 @@
+import { Herb } from "@herb-tools/node-wasm"
+
+await Herb.load()
+console.log(`Version: ${Herb.version}`)
+
+const result = Herb.parse('<div><%= "Hello" %></div>')
+console.assert(result.errors.length === 0, "No parse errors")
+console.assert(result.inspect().includes("@ DocumentNode (location: (1:0)-(1:25))"))
+console.log(result.inspect())
+
+const ruby = Herb.extractRuby('<div><%= "Hello" %></div>')
+console.assert(ruby.includes('"Hello"'), "extractRuby works")
+
+console.log("node-wasm works in Deno!")