Chromecast Picture Slideshow on TV: How to Set It Up

Yes, you can turn your Chromecast-connected TV into a photo slideshow. You cast a photo folder, a Google Photos album, or a single image from your phone or computer, and the TV cycles through the pictures automatically. This article explains the different ways to start a slideshow, how to control the timing, and what to do when it doesn’t work.

What Chromecast Models Support Slideshows

All current Chromecast devices—the standard Chromecast, Chromecast Ultra, Chromecast with Google TV, and the Google TV Streamer—can display a slideshow. The method differs slightly depending on whether your device runs the older Cast system or the newer Google TV interface.

Chromecast (all generations) and Chromecast Ultra: These use the Google Home app and rely on casting from a phone or browser.
Chromecast with Google TV and Google TV Streamer: These have a remote and a full TV interface, so they have a built-in ambient photo mode that works without a phone.

Both types can display a slideshow, but the steps and features differ. The instructions below cover both.

Method 1: Cast a Photo Album from Google Photos

The most common way to run a slideshow is through Google Photos on your phone or tablet. This works with any Chromecast device.

Open the Google Photos app on your Android or iOS device.
Tap a photo to open it, or open an album.
Tap the Cast icon (a rectangle with a Wi‑Fi symbol in the corner) at the top of the screen.
Select your Chromecast from the list of nearby devices.
The photo or album appears on your TV. Tap the play button in the app to start the slideshow.

When you cast an album, the slideshow automatically advances through every photo in that album. If you cast a single photo, it stays on that image unless you swipe to the next one in the app—swiping changes the TV image too.

On a computer, open photos.google.com in Chrome, open an album, click the Cast icon in the browser toolbar, and then click the play button in the photo viewer.

Method 2: Use Ambient Mode on Google TV

If you have a Chromecast with Google TV or the Google TV Streamer, you don’t need to cast at all. The device has a built-in ambient slideshow that activates when the TV is idle.

On your Google TV home screen, go to Settings (gear icon).
Select System → Ambient mode.
Choose Google Photos as the source.
Select which albums or people to include, or choose “All photos.�
Press the back button to save. The slideshow will start after a few minutes of inactivity.

You can also trigger it manually by pressing the Assistant button on the remote and saying “Show my photos.� The ambient mode cycles through your selected photos indefinitely, with a clock and weather overlay if you leave those options on.

How to Control Slideshow Speed and Order

Neither the Google Home app nor the Google Photos app gives you a direct “speed� slider for a cast slideshow. The interval between photos is fixed—roughly 5 seconds per image in Google Photos, and about 10 seconds in ambient mode. You can’t change that interval on a standard Chromecast.

However, you can control the order:

In Google Photos, the slideshow follows the album’s order. If you want a different sequence, create a new album with the photos in the order you want.
In ambient mode on Google TV, you can shuffle photos by going to Ambient mode → Google Photos → and toggling Shuffle on.

If you need precise timing control, you’ll need a third-party app like Photo Slideshow for Chromecast or Castify, which let you set intervals from 3 seconds to several minutes. These apps cast a local folder or a URL and give you a speed slider.

Common Problems and Fixes

Slideshows usually work without issue, but a few problems come up regularly.

No Cast icon in Google Photos: Make sure your phone and Chromecast are on the same Wi‑Fi network. If they are, close and reopen the app. On iOS, check that Local Network permission is enabled for Google Photos in Settings → Privacy → Local Network.
Slideshow stops after one photo: This happens when you cast a single photo instead of an album. Cast an album, or tap the play button in the photo viewer after casting.
Ambient mode shows only stock photos: Go to Ambient mode settings and select Google Photos as the source. If it’s already selected, sign out and back into your Google account on the device.
Photos are blurry: Chromecast displays photos at their original resolution. If the source image is small (e.g., from a text message), it will look pixelated on a large screen. Use photos from a camera or a high-resolution album.
TV goes to sleep during slideshow: Check your TV’s power-saving settings. Some TVs turn off after a fixed period of inactivity. Disable the sleep timer or set it to “Off� for the HDMI input your Chromecast is on.

Using a Computer or NAS for a Slideshow

If your photos are stored on a computer or a network drive (NAS), you can still cast them to your TV. The easiest way is to open the folder in Chrome and cast the entire tab.

Open Chrome on your computer.
Press Ctrl+O (Windows) or Cmd+O (Mac) and select a folder of images. Chrome opens the folder as a file list.
Click the first image to open it in the browser.
Click the three-dot menu → Cast → select your Chromecast.
Choose “Cast tab� (not “Cast desktop�). The TV will show the image.
Press F5 to reload the page, or use the browser’s built-in slideshow mode if you have an extension like “Slideshow for Chrome.�

This method is clunky because you must manually advance images. A better approach is to use a dedicated app like Photo Gallery or Kodi on your computer, which can cast a folder with proper timing. Kodi, for instance, has a “Slideshow� option in its picture viewer that works with Chromecast via the Kodi remote app.

Comparing Slideshow Methods

Each approach has trade-offs. Here’s a quick comparison:

Google Photos casting: Easiest, works from any device, but no speed control and requires a phone/tablet to keep the cast alive.
Ambient mode on Google TV: Fully automatic, no phone needed, but only available on newer devices and limited to Google Photos.
Browser tab casting: Works with any image folder, but no auto-advance unless you use an extension, and the computer must stay on.
Third-party apps: Give you speed control and local folder support, but cost money or show ads, and some are outdated.

For most people, Google Photos casting is the best balance of simplicity and reliability. If you have a Google TV device, ambient mode is the most hands-off option.

Frequently Asked Questions

Can I cast a slideshow from my iPhone?

Yes. The Google Photos app is available for iOS, and the casting steps are identical to Android. Just ensure your iPhone and Chromecast are on the same Wi‑Fi network and that Local Network permission is granted.

Why does my slideshow stop when I lock my phone?

When you cast from Google Photos, the phone maintains the connection. Locking the screen usually doesn’t stop the cast, but closing the app or switching to another app might. If it stops, keep the Google Photos app open in the foreground.

Can I use a USB drive with my Chromecast for photos?

No. Chromecast devices don’t have USB ports for storage (except the Chromecast with Google TV, which has a USB‑C port for power only). You must stream photos from a phone, computer, or cloud service.

How do I show photos without a phone?

On Chromecast with Google TV, use ambient mode. On older Chromecasts, you can cast from a computer’s Chrome browser. There’s no way to load photos directly onto the device itself.

Does the slideshow work with any photo resolution?

Yes, but the TV will upscale low-resolution images, making them look soft or pixelated. For best results, use photos that are at least 1920×1080 pixels (Full HD) or higher.

Can I set a custom interval between photos?

Not with the built-in Google Photos casting or ambient mode. You need a third-party app that offers a speed setting. Most such apps let you choose intervals from 2 to 60 seconds.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.

More cards in this drawer

The whole Numbers and Powers drawer →