diff --git a/client/views/Note.vue b/client/views/Note.vue
index a95c675c..2a63ea51 100644
--- a/client/views/Note.vue
+++ b/client/views/Note.vue
@@ -161,7 +161,7 @@ const isDraftModalVisible = ref(false);
 const isNewNote = computed(() => !props.title);
 const loadingIndicator = ref();
 const note = ref({});
-const reservedFilenameCharacters = /[<>:"/\\|?*]/;
+const reservedFilenameCharacters = /[<>:"\\|?*]/;
 const router = useRouter();
 const newTitle = ref();
 const toast = useToast();
diff --git a/server/helpers.py b/server/helpers.py
index 367830b5..958995e5 100644
--- a/server/helpers.py
+++ b/server/helpers.py
@@ -16,7 +16,7 @@ def camel_case(snake_case_str: str) -> str:
 def is_valid_filename(value):
     """Raise ValueError if the declared string contains any of the following
     characters: <>:"/\\|?*"""
-    invalid_chars = r'<>:"/\|?*'
+    invalid_chars = r'<>:"\|?*'
     if any(invalid_char in value for invalid_char in invalid_chars):
         raise ValueError(
             "title cannot include any of the following characters: "
diff --git a/server/main.py b/server/main.py
index 1cc0701f..546f22ca 100644
--- a/server/main.py
+++ b/server/main.py
@@ -32,7 +32,7 @@
 @router.get("/login", include_in_schema=False)
 @router.get("/search", include_in_schema=False)
 @router.get("/new", include_in_schema=False)
-@router.get("/note/{title}", include_in_schema=False)
+@router.get("/note/{title:path}", include_in_schema=False)
 def root(title: str = ""):
     with open("client/dist/index.html", "r", encoding="utf-8") as f:
         html = f.read()
@@ -61,7 +61,7 @@ def token(data: Login):
 # region Notes
 # Get Note
 @router.get(
-    "/api/notes/{title}",
+    "/api/notes/{title:path}",
     dependencies=auth_deps,
     response_model=Note,
 )
diff --git a/server/notes/file_system/file_system.py b/server/notes/file_system/file_system.py
index 656c2079..e181ee2b 100644
--- a/server/notes/file_system/file_system.py
+++ b/server/notes/file_system/file_system.py
@@ -225,9 +225,9 @@ def _add_note_to_index(
     def _list_all_note_filenames(self) -> List[str]:
         """Return a list of all note filenames."""
         return [
-            os.path.split(filepath)[1]
+            os.path.relpath(filepath, self.storage_path)
             for filepath in glob.glob(
-                os.path.join(self.storage_path, "*" + MARKDOWN_EXT)
+                os.path.join(self.storage_path, "**/*" + MARKDOWN_EXT), recursive = True
             )
         ]
 
@@ -390,5 +390,7 @@ def _read_file(filepath: str):
     @staticmethod
     def _write_file(filepath: str, content: str, overwrite: bool = False):
         logger.debug(f"Writing to '{filepath}'")
+        directory = os.path.dirname(filepath)
+        os.makedirs(directory, exist_ok = True)
         with open(filepath, "w" if overwrite else "x") as f:
             f.write(content)