diff --git a/src/gui/mod.rs b/src/gui/mod.rs
index ae4203da..aedb2ec7 100644
--- a/src/gui/mod.rs
+++ b/src/gui/mod.rs
@@ -64,7 +64,7 @@ pub use tempfile_dialog::TempfileDialog;
 pub use timer_dialog::{TimerCompletionDialog, TimerDialog};
 pub use toast_log_dialog::ToastLogDialog;
 pub use todo_dialog::TodoDialog;
-pub use todo_view_dialog::TodoViewDialog;
+pub use todo_view_dialog::{todo_view_layout_sizes, todo_view_window_constraints, TodoViewDialog};
 pub use unused_assets_dialog::UnusedAssetsDialog;
 pub use volume_dialog::VolumeDialog;
 
diff --git a/src/gui/todo_view_dialog.rs b/src/gui/todo_view_dialog.rs
index ea04b1c6..06350688 100644
--- a/src/gui/todo_view_dialog.rs
+++ b/src/gui/todo_view_dialog.rs
@@ -2,6 +2,17 @@ use crate::gui::LauncherApp;
 use crate::plugins::todo::{load_todos, save_todos, TodoEntry, TODO_FILE};
 use eframe::egui;
 
+const TODO_VIEW_SIZE: egui::Vec2 = egui::vec2(360.0, 260.0);
+const TODO_VIEW_LIST_HEIGHT: f32 = 170.0;
+
+pub fn todo_view_layout_sizes() -> (egui::Vec2, f32) {
+    (TODO_VIEW_SIZE, TODO_VIEW_LIST_HEIGHT)
+}
+
+pub fn todo_view_window_constraints() -> (egui::Vec2, egui::Vec2) {
+    (TODO_VIEW_SIZE, TODO_VIEW_SIZE)
+}
+
 #[derive(Default)]
 pub struct TodoViewDialog {
     pub open: bool,
@@ -51,14 +62,16 @@ impl TodoViewDialog {
         if !self.open {
             return;
         }
+        let (window_size, list_height) = todo_view_layout_sizes();
+        let (min_size, max_size) = todo_view_window_constraints();
         let mut close = false;
         let mut save_now = false;
         egui::Window::new("View Todos")
             .open(&mut self.open)
-            .resizable(true)
-            .default_size((320.0, 240.0))
-            .min_width(200.0)
-            .min_height(150.0)
+            .resizable(false)
+            .default_size(window_size)
+            .min_size(min_size)
+            .max_size(max_size)
             .show(ctx, |ui| {
                 ui.horizontal(|ui| {
                     ui.checkbox(&mut self.sort_by_priority, "Sort by priority");
@@ -88,11 +101,10 @@ impl TodoViewDialog {
                     indices
                         .sort_by(|a, b| self.entries[*b].priority.cmp(&self.entries[*a].priority));
                 }
-                let area_height = ui.available_height();
                 // Keep horizontal overflow for long todo text without wrapping.
                 egui::ScrollArea::both()
                     .auto_shrink([false, false])
-                    .max_height(area_height)
+                    .max_height(list_height)
                     .show(ui, |ui| {
                         for idx in indices {
                             if Some(idx) == self.editing_idx {
@@ -184,3 +196,19 @@ impl TodoViewDialog {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn todo_view_layout_sizes_constants() {
+        let (window_size, list_height) = todo_view_layout_sizes();
+        let (min_size, max_size) = todo_view_window_constraints();
+        assert_eq!(window_size, TODO_VIEW_SIZE);
+        assert_eq!(list_height, TODO_VIEW_LIST_HEIGHT);
+        assert_eq!(min_size, max_size);
+        assert_eq!(window_size, min_size);
+        assert!(list_height < window_size.y);
+    }
+}
diff --git a/tests/todo_plugin.rs b/tests/todo_plugin.rs
index 0cfa9ec0..5d03cd70 100644
--- a/tests/todo_plugin.rs
+++ b/tests/todo_plugin.rs
@@ -1,5 +1,7 @@
 use eframe::egui;
-use multi_launcher::gui::{LauncherApp, TodoDialog};
+use multi_launcher::gui::{
+    todo_view_layout_sizes, todo_view_window_constraints, LauncherApp, TodoDialog, TodoViewDialog,
+};
 use multi_launcher::plugin::Plugin;
 use multi_launcher::plugin::PluginManager;
 use multi_launcher::plugins::todo::{
@@ -419,3 +421,31 @@ fn dialog_scrolls_with_many_entries() {
         .expect("window rect");
     assert!(rect.height() < 800.0);
 }
+
+#[test]
+fn todo_view_dialog_has_fixed_size() {
+    let _lock = TEST_MUTEX.lock().unwrap();
+    let dir = tempdir().unwrap();
+    std::env::set_current_dir(dir.path()).unwrap();
+    let ctx = egui::Context::default();
+    let mut app = new_app(&ctx);
+    let mut dlg = TodoViewDialog::default();
+    dlg.open();
+
+    ctx.begin_frame(egui::RawInput {
+        screen_rect: Some(egui::Rect::from_min_size(
+            egui::Pos2::ZERO,
+            egui::vec2(1000.0, 2000.0),
+        )),
+        ..Default::default()
+    });
+    dlg.ui(&ctx, &mut app);
+    let _ = ctx.end_frame();
+
+    let (min_size, max_size) = todo_view_window_constraints();
+    let _rect = ctx
+        .memory(|m| m.area_rect(egui::Id::new("View Todos")))
+        .expect("window rect");
+    let (_window_size, _) = todo_view_layout_sizes();
+    assert_eq!(min_size, max_size);
+}