diff --git a/desktop_client/create_folder_widget.py b/desktop_client/create_folder_widget.py
new file mode 100644
index 0000000..9683cd8
--- /dev/null
+++ b/desktop_client/create_folder_widget.py
@@ -0,0 +1,37 @@
+from __future__ import annotations
+
+import uuid
+
+import file_widgets
+from PyQt6.QtWidgets import QLineEdit, QMessageBox, QPushButton, QVBoxLayout, QWidget
+from request_client import RequestClient
+
+
+class CreateFolderWidget(QWidget):
+    def __init__(self, folder_id: uuid.UUID, file_list: file_widgets.FileListWidget):
+        super().__init__()
+        self.folder_id = folder_id
+        self.file_list = file_list
+        self.setWindowTitle("Folder creation")
+        layout = QVBoxLayout()
+        self.edit = QLineEdit()
+        layout.addWidget(self.edit)
+        button = QPushButton("Submit")
+        button.clicked.connect(self.submit)
+        layout.addWidget(button)
+        self.setLayout(layout)
+
+    def submit(self):
+        response = RequestClient().client.post(
+            "/folders",
+            json={
+                "folder_name": self.edit.text(),
+                "parent_folder_id": str(self.folder_id),
+            },
+        )
+        if not response.is_success:
+            QMessageBox.warning(None, "Error creating folder", response.text)
+        else:
+            QMessageBox.information(None, "Folder created", "Folder created")
+            self.file_list.update_response()
+        self.close()
diff --git a/desktop_client/file_widgets.py b/desktop_client/file_widgets.py
index 664e84e..c9f7b32 100644
--- a/desktop_client/file_widgets.py
+++ b/desktop_client/file_widgets.py
@@ -1,23 +1,18 @@
 from __future__ import annotations
 
 import dataclasses
-import user
 import datetime
 import os
 import uuid
 from typing import Protocol, Self
 
+import create_folder_widget
 import httpx
 import pydantic
 import state
+import user
 from PyQt6.QtCore import QPoint, Qt
-from PyQt6.QtGui import (
-    QAction,
-    QDragEnterEvent,
-    QDragMoveEvent,
-    QDropEvent,
-    QIcon,
-)
+from PyQt6.QtGui import QAction, QDragEnterEvent, QDragMoveEvent, QDropEvent, QIcon
 from PyQt6.QtWidgets import (
     QFileDialog,
     QHBoxLayout,
@@ -62,9 +57,7 @@ class File(pydantic.BaseModel):
         return self.file_name
 
     def delete(self) -> None:
-        RequestClient().client.delete(
-            "/files", params={"file_id": self.file_id}
-        )
+        RequestClient().client.delete("/files", params={"file_id": self.file_id})
 
     def details(self, list: FileListWidget) -> QWidget:
         del list
@@ -121,8 +114,10 @@ class Folder(pydantic.BaseModel):
         return self.folder_name
 
     def delete(self) -> None:
-        RequestClient().client.delete(
-            "/folders", params={"folder_id": self.folder_id}
+        print(
+            RequestClient()
+            .client.delete("/folders", params={"folder_id": self.folder_id})
+            .text
         )
 
     def details(self, list: FileListWidget) -> QWidget:
@@ -144,6 +139,9 @@ class ResponseProtocol(Protocol):
     def update(self) -> ResponseProtocol:
         raise NotImplementedError
 
+    def create_folder(self) -> QWidget | None:
+        raise NotImplementedError
+
 
 class ListResponse(pydantic.BaseModel):
     folder_id: uuid.UUID
@@ -165,6 +163,32 @@ class ListResponse(pydantic.BaseModel):
     def update(self) -> ResponseProtocol:
         return self.get(self.folder_id)
 
+    def create_folder(self, file_list: FileListWidget):
+        return create_folder_widget.CreateFolderWidget(self.folder_id, file_list)
+
+
+@dataclasses.dataclass(slots=True)
+class TlpResponse:
+    folders: list[Folder]
+
+    @staticmethod
+    def get() -> Self:
+        url = "/permissions/get_top_level_permitted_folders"
+        return TlpResponse(
+            pydantic.TypeAdapter(list[Folder]).validate_json(
+                RequestClient().client.get(url).text
+            )
+        )
+
+    def items(self) -> list[DisplayProtocol]:
+        return self.folders
+
+    def update(self) -> ResponseProtocol:
+        return self.get()
+
+    def create_folder(self):
+        return  # Not much to do
+
 
 class FileListWidget(QListWidget):
     def __init__(self, state: state.State):
@@ -217,9 +241,7 @@ class FileListWidget(QListWidget):
                 response = RequestClient().client.post(
                     "http://localhost:3000/files",
                     files=files,
-                    params={
-                        "parent_folder": self.current_response().folder_id
-                    },
+                    params={"parent_folder": self.current_response().folder_id},
                 )
                 if response.is_success:
                     QMessageBox.information(
@@ -276,6 +298,7 @@ class Sidebar(QWidget):
         self.state = state
         self.file_list = file_list
         self.user_widget = None
+        self.folder_widget = None
         layout = QVBoxLayout()
         self.setLayout(layout)
         buttons = [
@@ -285,6 +308,7 @@ class Sidebar(QWidget):
             ("Go root", self.go_root),
             ("Get permitted", self.get_tlp),
             ("Sync", self.sync),
+            ("Create folder", self.create_folder),
         ]
         for text, func in buttons:
             button = QPushButton(text)
@@ -317,25 +341,12 @@ class Sidebar(QWidget):
         # TODO
         ...
 
-
-@dataclasses.dataclass(slots=True)
-class TlpResponse:
-    folders: list[Folder]
-
-    @staticmethod
-    def get() -> Self:
-        url = "/permissions/get_top_level_permitted_folders"
-        return TlpResponse(
-            pydantic.TypeAdapter(list[Folder]).validate_json(
-                RequestClient().client.get(url).text
-            )
+    def create_folder(self):
+        self.folder_widget = self.file_list.current_response().create_folder(
+            self.file_list
         )
-
-    def items(self) -> list[DisplayProtocol]:
-        return self.folders
-
-    def update(self) -> ResponseProtocol:
-        return self.get()
+        if self.folder_widget is not None:
+            self.folder_widget.show()
 
 
 class MainFileWidget(QWidget):
diff --git a/desktop_client/user.py b/desktop_client/user.py
index 64200e6..bfea5c1 100644
--- a/desktop_client/user.py
+++ b/desktop_client/user.py
@@ -3,13 +3,13 @@ from __future__ import annotations
 import pydantic
 import state
 from PyQt6.QtWidgets import (
-    QWidget,
-    QLineEdit,
-    QLabel,
-    QVBoxLayout,
-    QPushButton,
     QHBoxLayout,
+    QLabel,
+    QLineEdit,
     QMessageBox,
+    QPushButton,
+    QVBoxLayout,
+    QWidget,
 )
 from request_client import RequestClient