diff --git a/tests/camera-manager/utils/go2rtc-audio.test.ts b/tests/camera-manager/utils/go2rtc-audio.test.ts
index 5c8207f1..6748be63 100644
--- a/tests/camera-manager/utils/go2rtc-audio.test.ts
+++ b/tests/camera-manager/utils/go2rtc-audio.test.ts
@@ -25,7 +25,7 @@ describe('supports2WayAudio', () => {
     vi.mocked(createProxiedEndpointIfNecessary).mockResolvedValue(endpoint);
     vi.mocked(homeAssistantSignAndFetch).mockRejectedValue(new Error('fetch error'));
 
-    const spy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+    const spy = vi.spyOn(console, 'warn');
     const result = await supports2WayAudio(hass, 2, endpoint);
 
     expect(result).toBe(false);
diff --git a/tests/card-controller/issues/state-manager.test.ts b/tests/card-controller/issues/state-manager.test.ts
index 254cc317..8f7b7c6d 100644
--- a/tests/card-controller/issues/state-manager.test.ts
+++ b/tests/card-controller/issues/state-manager.test.ts
@@ -70,7 +70,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should isolate a failing issue and continue detecting the rest', async () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       assert(mockConfigUpgrade.detectStatic);
       assert(mockLegacyResource.detectStatic);
       assert(mockMediaLoad.detectStatic);
@@ -345,7 +345,7 @@ describe('IssueStateManager', () => {
 
   describe('logging', () => {
     it('should log on static detection when issue is active', async () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       const result = createIssueDescription({
         notification: { body: { text: 'Legacy issue' } },
       });
@@ -362,7 +362,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should log on dynamic evaluation when issue becomes active', () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       const result = createIssueDescription({
         notification: { body: { text: 'Stream issue' } },
       });
@@ -379,7 +379,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should log on trigger when the issue becomes active', () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       const result = createIssueDescription({
         notification: { body: { text: 'Triggered' } },
       });
@@ -393,7 +393,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should not log on trigger when the issue stays inactive', () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       vi.mocked(mockMediaLoad.getIssue).mockReturnValue(null);
 
       const manager = createManager();
@@ -404,7 +404,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should not log on trigger for an unknown key', () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
 
       const manager = createManager();
       manager.trigger('unknown' as never, {} as never);
@@ -414,7 +414,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should only log once per issue key', async () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       const result = createIssueDescription({
         notification: { body: { text: 'Repeated' } },
       });
@@ -430,7 +430,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should not log when issue has no result', async () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       vi.mocked(mockLegacyResource.hasIssue).mockReturnValue(false);
 
       const manager = createManager();
@@ -441,7 +441,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should not log when issue result has no summarizable text', async () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       // Notification has neither body.text nor heading.text
       const result = createIssueDescription({
         notification: {},
@@ -457,7 +457,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should log again after the issue clears and re-activates', async () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       const first = createIssueDescription({
         notification: { body: { text: 'First' } },
       });
@@ -490,7 +490,7 @@ describe('IssueStateManager', () => {
     });
 
     it('should log again after reset and re-activation', () => {
-      const spy = vi.spyOn(console, 'warn').mockReturnValue();
+      const spy = vi.spyOn(console, 'warn');
       const description = createIssueDescription({
         notification: { body: { text: 'Repeat' } },
       });
diff --git a/tests/components-lib/gallery/controller.test.ts b/tests/components-lib/gallery/controller.test.ts
index 82a8191e..6165be63 100644
--- a/tests/components-lib/gallery/controller.test.ts
+++ b/tests/components-lib/gallery/controller.test.ts
@@ -285,7 +285,7 @@ describe('GalleryController', () => {
       manager.getView.mockReturnValue(view);
 
       const error = new Error('test error');
-      const spy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+      const spy = vi.spyOn(console, 'warn');
       runner.extend.mockRejectedValue(error);
 
       await controller.extend(runner, epoch, 'earlier');
diff --git a/tests/components-lib/media/notification-controller.test.ts b/tests/components-lib/media/notification-controller.test.ts
index 04726ebd..3e8e5d3e 100644
--- a/tests/components-lib/media/notification-controller.test.ts
+++ b/tests/components-lib/media/notification-controller.test.ts
@@ -416,8 +416,6 @@ describe('MediaNotificationController', () => {
       assert(controls);
       expect(controls).toHaveLength(4);
 
-      vi.spyOn(console, 'warn').mockImplementation(() => {});
-
       // 1. Review control
       expect(controls?.[0].tooltip).toBe('Mark as reviewed');
       expect(controls?.[0].dismiss).toBe(false);
diff --git a/tests/components-lib/signed-url-controller.test.ts b/tests/components-lib/signed-url-controller.test.ts
index e21db08d..b0170a46 100644
--- a/tests/components-lib/signed-url-controller.test.ts
+++ b/tests/components-lib/signed-url-controller.test.ts
@@ -374,8 +374,6 @@ describe('SignedURLController', () => {
   it('should handle errors gracefully', async () => {
     const host = mock<ReactiveControllerHost>();
     const hass = createHASS();
-    const consoleSpy = vi.spyOn(console, 'warn').mockReturnValue();
-
     vi.mocked(createProxiedEndpointIfNecessary).mockRejectedValue(
       new Error('test-error'),
     );
@@ -399,7 +397,6 @@ describe('SignedURLController', () => {
     expect(controller.getValue()).toBeNull();
     expect(controller.getError()).toBe('proxy');
     expect(host.requestUpdate).toBeCalledTimes(1);
-    consoleSpy.mockRestore();
   });
 
   it('should not retry after sign error with same inputs', async () => {
@@ -437,7 +434,6 @@ describe('SignedURLController', () => {
   it('should set sign error when signing throws', async () => {
     const host = mock<ReactiveControllerHost>();
     const hass = createHASS();
-    const consoleSpy = vi.spyOn(console, 'error').mockReturnValue(undefined);
 
     vi.mocked(createProxiedEndpointIfNecessary).mockResolvedValue({
       endpoint: 'http://proxied-url.com',
@@ -462,7 +458,6 @@ describe('SignedURLController', () => {
 
     expect(controller.getValue()).toBeNull();
     expect(controller.getError()).toBe('sign');
-    consoleSpy.mockRestore();
   });
 
   it('should not fetch again if within cache TTL', async () => {
@@ -652,7 +647,6 @@ describe('SignedURLController', () => {
         // Pending forever for request 2.
         new Promise(() => {}),
       );
-    vi.spyOn(console, 'warn').mockImplementation(() => {});
 
     const controller = new SignedURLController(host, () => ({
       hass,
diff --git a/tests/utils/media-actions.test.ts b/tests/utils/media-actions.test.ts
index d354b54f..183b0512 100644
--- a/tests/utils/media-actions.test.ts
+++ b/tests/utils/media-actions.test.ts
@@ -84,7 +84,7 @@ describe('MediaActions', () => {
       const error = new Error('fail');
       viewItemManager.reviewMedia.mockRejectedValue(error);
 
-      const consoleSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+      const consoleSpy = vi.spyOn(console, 'warn');
 
       expect(await toggleReviewed(item, viewItemManager)).toBe(false);
       expect(consoleSpy).toHaveBeenCalledWith(error.message);
@@ -128,7 +128,7 @@ describe('MediaActions', () => {
       const error = new Error('fail');
       viewItemManager.favorite.mockRejectedValue(error);
 
-      const consoleSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+      const consoleSpy = vi.spyOn(console, 'warn');
 
       expect(await toggleFavorite(item, viewItemManager)).toBe(false);
       expect(consoleSpy).toHaveBeenCalledWith(error.message);
@@ -158,7 +158,7 @@ describe('MediaActions', () => {
       const error = new Error('fail');
       viewItemManager.download.mockRejectedValue(error);
 
-      const consoleSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+      const consoleSpy = vi.spyOn(console, 'warn');
 
       expect(await downloadMedia(item, viewItemManager)).toBe(false);
       expect(consoleSpy).toHaveBeenCalledWith(error.message);
diff --git a/tests/utils/task.test.ts b/tests/utils/task.test.ts
index 7939730c..0d078e5b 100644
--- a/tests/utils/task.test.ts
+++ b/tests/utils/task.test.ts
@@ -46,7 +46,7 @@ describe('task utilities', () => {
     task.render.mockImplementation((renderers) =>
       renderers.error?.(new Error('test error')),
     );
-    const consoleSpy = vi.spyOn(console, 'warn').mockImplementation(() => undefined);
+    const consoleSpy = vi.spyOn(console, 'warn');
     const errorFunc = vi.fn().mockReturnValue(html`error`);
 
     const result = renderTask(task, (r) => html`${r}`, { errorFunc });
diff --git a/vite.config.ts b/vite.config.ts
index 65b3cc80..5a00461e 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -30,6 +30,12 @@ export default defineConfig({
       },
     },
     include: INCLUSIONS,
+
+    // Hide console writing to keep output clean, usual sources of noise:
+    // - Unnecessary Lit dev-mode warnings.
+    // - Various console outputs (that are expected/tested).
+    onConsoleLog: () => false,
+
     coverage: {
       exclude: EXCLUSIONS,