--- a
+++ b/v3/py2tfjs/fixmodeljson.py
@@ -0,0 +1,37 @@
+import tensorflowjs as tfjs
+import json
+
+# After saving keras model with ZeroPadding3D as model.json  Modify with this code:
+
+
+def fixjson_file(model_file, verbose=False, scube=38):
+    # Open json file to modify
+    with open(model_file) as f:
+        model_dict = json.load(f)
+
+    # Convert
+    for layer in model_dict['modelTopology']['model_config']['config']['layers']:
+        if layer['class_name'] == "ZeroPadding3D":
+            model_dict['modelTopology']['model_config']['config']['layers'].remove(layer)
+
+    prev_layer_name = ""
+    for layer in model_dict['modelTopology']['model_config']['config']['layers']:
+        if layer['class_name'] == "InputLayer":
+            layer["config"]["batch_input_shape"] = [None, scube, scube, scube, 1]
+
+        if layer['class_name'] == "Conv3D":
+            layer["config"]["padding"] = "same"
+            layer["config"]["data_format"] = "channels_last"
+            layer['inbound_nodes'][0][0][0] = prev_layer_name
+
+        prev_layer_name = layer["config"]["name"]
+
+    if verbose:
+        # Verification
+        for layer in model_dict['modelTopology']['model_config']['config']['layers']:
+            print(layer)
+            print("-------------------------------------------------------")
+
+    # Save model.json file
+    with open(model_file, 'w') as fp:
+        json.dump(model_dict, fp)