diff --git a/README.md b/README.md
index 025b912..8be0e9b 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,8 @@ Adds a splash to the specified category.
 Adds an array of splashes to the specified category.
 #### *CoreBaseModule* <u>delete_category</u>(*String* <u>category</u>)
 Removes the specified category.
+#### *Array[String]* <u>get_categories()</u>()
+Returns a list of all categories.
 #### *CoreBaseModule* <u>copy_splashes</u>(*String* <u>source_category</u>, *String* <u>target_category</u>)
 Copies all splashes from the source category to the target category.
 #### *String* <u>get_random_splash</u>(*String* <u>category</u>)
diff --git a/src/modules/splashes.gd b/src/modules/splashes.gd
index e84db83..2ae5671 100644
--- a/src/modules/splashes.gd
+++ b/src/modules/splashes.gd
@@ -139,6 +139,10 @@ func add_splashes(category: String, splash_array: Array[String]) -> CoreBaseModu
 	
 	return self
 
+## Returns a list of all categories.
+func list_categories() -> Array[String]:
+	return core.misc.array_to_stringarray(splashes.keys())
+
 ## Removes the specified category.
 func delete_category(category: String) -> CoreBaseModule:
 	splashes.erase(category)