diff --git a/packages/desktop/src/main.ts b/packages/desktop/src/main.ts
index ff4c3d655..9ac733b1d 100644
--- a/packages/desktop/src/main.ts
+++ b/packages/desktop/src/main.ts
@@ -146,6 +146,25 @@ async function createMainWindow(): Promise<void> {
   setupWindowResizeEvents(mainWindow);
   setupDefaultContextMenu(mainWindow);
   setupDragDropPrevention(mainWindow);
+
+  // Renderer diagnostics — helps debug layout and loading issues
+  mainWindow.webContents.on("console-message", (_event, level, message, line, sourceId) => {
+    const levelNames = ["verbose", "info", "warning", "error"];
+    log.info(`[renderer:console] [${levelNames[level] ?? level}] ${message} (${sourceId}:${line})`);
+  });
+  mainWindow.webContents.on("did-finish-load", () => {
+    log.info("[renderer] did-finish-load");
+  });
+  mainWindow.webContents.on("did-fail-load", (_event, errorCode, errorDescription, validatedURL) => {
+    log.error("[renderer] did-fail-load", { errorCode, errorDescription, validatedURL });
+  });
+  mainWindow.webContents.on("render-process-gone", (_event, details) => {
+    log.error("[renderer] render-process-gone", details);
+  });
+  mainWindow.webContents.on("unresponsive", () => {
+    log.warn("[renderer] unresponsive");
+  });
+
   mainWindow.once("ready-to-show", () => {
     mainWindow.show();
   });