diff --git a/core/src/state/notebook.rs b/core/src/state/notebook.rs
index 37c564f..b92b2ab 100644
--- a/core/src/state/notebook.rs
+++ b/core/src/state/notebook.rs
@@ -137,6 +137,7 @@ impl NotebookState {
                 vec![
                     "[i] Edit mode",
                     "[b] Browse note tree",
+                    "[n] Toggle line number",
                     "[h] Show editor keymap",
                     "[Esc] Quit",
                 ]
diff --git a/tui/src/context/notebook.rs b/tui/src/context/notebook.rs
index 0c7f7b2..be05a5f 100644
--- a/tui/src/context/notebook.rs
+++ b/tui/src/context/notebook.rs
@@ -61,6 +61,7 @@ pub struct NotebookContext {
     // editor
     pub editor: TextArea<'static>,
     pub opened_note: Option<Note>,
+    pub show_line_number: bool,
 }
 
 impl Default for NotebookContext {
@@ -75,6 +76,7 @@ impl Default for NotebookContext {
 
             editor: TextArea::new(vec!["Welcome to Glues :D".to_owned()]),
             opened_note: None,
+            show_line_number: true,
         }
     }
 }
@@ -238,6 +240,11 @@ impl NotebookContext {
                 self.state = ContextState::EditorEditMode;
                 Action::Dispatch(NotebookEvent::EditNote.into())
             }
+            KeyCode::Char('n') => {
+                self.show_line_number = !self.show_line_number;
+
+                Action::None
+            }
             KeyCode::Char('h') => TuiAction::ShowEditorKeymap.into(),
             KeyCode::Esc => TuiAction::Confirm {
                 message: "Do you want to quit?".to_owned(),
diff --git a/tui/src/views/body/notebook/editor.rs b/tui/src/views/body/notebook/editor.rs
index 76ea745..ac84573 100644
--- a/tui/src/views/body/notebook/editor.rs
+++ b/tui/src/views/body/notebook/editor.rs
@@ -34,7 +34,11 @@ pub fn draw(frame: &mut Frame, area: Rect, context: &mut Context) {
         ),
         None => block,
     }
-    .padding(Padding::horizontal(1));
+    .padding(if context.notebook.show_line_number {
+        Padding::ZERO
+    } else {
+        Padding::left(1)
+    });
 
     context.notebook.editor.set_block(block);
 
@@ -46,11 +50,14 @@ pub fn draw(frame: &mut Frame, area: Rect, context: &mut Context) {
         _ => (Style::default(), Style::default()),
     };
 
-    context.notebook.editor.set_cursor_style(cursor_style);
-    context
-        .notebook
-        .editor
-        .set_cursor_line_style(cursor_line_style);
+    let editor = &mut context.notebook.editor;
+    editor.set_cursor_style(cursor_style);
+    editor.set_cursor_line_style(cursor_line_style);
+    if context.notebook.show_line_number {
+        editor.set_line_number_style(Style::default().dark_gray().dim());
+    } else {
+        editor.remove_line_number();
+    }
 
     frame.render_widget(&context.notebook.editor, area);
 }