String Converter Node

__init__.py

@@ -8,6 +8,7 @@ from .custom_name_selector import IndexedStringSelector
 from .ksampler_fun import KSampler
 from .fal_recraft_upscale import FalAPI_recraft_upscale
 from .fal_kling_video import FalAPI_kling_video
+from .string_lower import StringLower
 WEB_DIRECTORY = "./js"
 
 NODE_CLASS_MAPPINGS = {
@@ -19,7 +20,8 @@ NODE_CLASS_MAPPINGS = {
     "IndexedStringSelector": IndexedStringSelector,
     "Fun KSampler": KSampler,
     "FalAPI_recraft_upscale": FalAPI_recraft_upscale,
-    "FalAPI_kling_video": FalAPI_kling_video
+    "FalAPI_kling_video": FalAPI_kling_video,
+    "StringLower": StringLower
 }
 NODE_DISPLAY_NAME_MAPPINGS = {
     "LayeredInfiniteZoom": "Layered Infinite Zoom",
@@ -30,7 +32,8 @@ NODE_DISPLAY_NAME_MAPPINGS = {
     "IndexedStringSelector": "Indexed String Selector",
     "Fun KSampler": "Fun KSampler",
     "FalAPI_recraft_upscale": "Fal API Recraft Upscale",
-    "FalAPI_kling_video": "Fal API Kling Video"
+    "FalAPI_kling_video": "Fal API Kling Video",
+    "StringLower": "String to Lowercase"
 }
 
 __all__ = [

string_lower.py

@@ -0,0 +1,17 @@
+class StringLower:
+    CATEGORY = "Text"   # shows up under "Text" in the node picker
+
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "text": ("STRING",),   # one STRING input
+            }
+        }
+
+    RETURN_TYPES = ("STRING",)  # one STRING output (fixed syntax error)
+    FUNCTION = "to_lower"         # name of the method to call
+
+    def to_lower(self, text):
+        # do the work and return a tuple matching RETURN_TYPES
+        return (text.lower(),)