diff --git a/json_loader.py b/json_loader.py
index bea59e0..25412c0 100644
--- a/json_loader.py
+++ b/json_loader.py
@@ -106,6 +106,7 @@ class JSONLoaderDynamic:
             },
             "optional": {
                 "output_keys": ("STRING", {"default": ""}),
+                "output_types": ("STRING", {"default": ""}),
             },
         }
 
diff --git a/web/json_dynamic.js b/web/json_dynamic.js
index f2b4304..81e11f1 100644
--- a/web/json_dynamic.js
+++ b/web/json_dynamic.js
@@ -11,11 +11,10 @@ app.registerExtension({
         nodeType.prototype.onNodeCreated = function () {
             origOnNodeCreated?.apply(this, arguments);
 
-            // Hide the output_keys widget (managed internally by JS)
-            const okWidget = this.widgets?.find(w => w.name === "output_keys");
-            if (okWidget) {
-                okWidget.type = "hidden";
-                okWidget.computeSize = () => [0, -4];
+            // Hide internal widgets (managed by JS)
+            for (const name of ["output_keys", "output_types"]) {
+                const w = this.widgets?.find(w => w.name === name);
+                if (w) { w.type = "hidden"; w.computeSize = () => [0, -4]; }
             }
 
             // Remove all 32 default outputs from Python RETURN_TYPES
@@ -42,9 +41,11 @@ app.registerExtension({
                 );
                 const { keys, types } = await resp.json();
 
-                // Update output_keys widget for Python to read at execution time
+                // Store keys and types in hidden widgets for persistence
                 const okWidget = this.widgets?.find(w => w.name === "output_keys");
                 if (okWidget) okWidget.value = keys.join(",");
+                const otWidget = this.widgets?.find(w => w.name === "output_types");
+                if (otWidget) otWidget.value = types.join(",");
 
                 // Build a map of current output names to slot indices
                 const oldSlots = {};
@@ -105,20 +106,27 @@ app.registerExtension({
         nodeType.prototype.onConfigure = function (info) {
             origOnConfigure?.apply(this, arguments);
 
-            const okWidget = this.widgets?.find(w => w.name === "output_keys");
-            if (okWidget) {
-                okWidget.type = "hidden";
-                okWidget.computeSize = () => [0, -4];
+            // Hide internal widgets
+            for (const name of ["output_keys", "output_types"]) {
+                const w = this.widgets?.find(w => w.name === name);
+                if (w) { w.type = "hidden"; w.computeSize = () => [0, -4]; }
             }
 
+            const okWidget = this.widgets?.find(w => w.name === "output_keys");
+            const otWidget = this.widgets?.find(w => w.name === "output_types");
+
             const keys = okWidget?.value
                 ? okWidget.value.split(",").filter(k => k.trim())
                 : [];
+            const types = otWidget?.value
+                ? otWidget.value.split(",")
+                : [];
 
             // On load, LiteGraph already restored serialized outputs with links.
-            // Just rename to match keys (preserves links) and trim excess.
+            // Rename and set types to match stored state (preserves links).
             for (let i = 0; i < this.outputs.length && i < keys.length; i++) {
                 this.outputs[i].name = keys[i].trim();
+                if (types[i]) this.outputs[i].type = types[i];
             }
 
             // Remove any extra outputs beyond the key count