Hide pictures inside others!

Gammux merges two pictures, a full-sized picture in a smaller thumbnail picture. When websites resize the merged picture, the thumbnail is visible, but when view full the larger one is seen.

1. Pick an image to hide:

2. Pick an image to hide it in:

3. View result!

After selection the Thumbnail and Full Image above, the result will appear here.

(You can right-click and save the image.)

An explanation of how this work can be found on my blog. The source code available on GitHub.

Made by Carl Mastrangelo.