Gallery of stereograms

A simple pattern suddenly gains depth, and you notice a shape that was there all along. That little moment of discovery is what makes stereograms so satisfying to explore.

Gallery of stereograms is a collection of stereo pictures with hidden 3D images. Browse the patterns, try to see the depth, and return to the optical illusions you like most.

Full screen, at your own pace
Spend as long as you want with each picture. Open a stereogram full screen, explore its pattern, then use the arrow to move on. Browse in either direction to revisit the previous image and give it another try.

After a few seconds without a touch, the controls disappear, leaving just the stereogram on screen. Tap to bring them back and continue browsing.

Your favorite stereo pictures
Save an interesting picture even if you haven't spotted its hidden shape yet. Tap the star to add it to your favorites. This section lets you browse only the stereograms you've chosen. To remove a picture, unstar it in the regular gallery.

Pick up where you left off
You don't have to start over after every break. The app remembers your position in both the gallery and favorites, so you can return to the picture you were viewing.

The pictures are available offline because they're already included in the app. Explore stereograms without an internet connection, on a trip or during a short break.

How to see the hidden 3D picture
Hold the screen at a comfortable distance and try looking through the pattern, slightly beyond its surface. Relax your gaze and give yourself time to notice the depth. You don't need special 3D glasses.

If it doesn't work on your first try, open another stereogram and try again. Choose what you want to explore and return to familiar optical illusions whenever you like.

Open your first stereogram. A flat pattern might still surprise you.