Randomize values just in one direction, e.g. for a flickering exposure effect

Jibba Jabba begins with random text and as time progresses the random letters form coherent information.

Distributing multiple layers in Z axis and on specific time to animate them at 0 point.

Learn how to design and composite a combat Heads-Up-Display (HUD) with an automated tracking system using real ground targets in After Effects...

The random(x) expression is simple enough to randomly rotate a layer to any angle, but what if you want that angle to be to the nearest 45 degrees?

This expression creates a flickering effect on a layer - similar to a flickering neon light.

This will go to a random position in your footage every half second and pause on a still frame.

Jumps and plays from a random point in your footage every half second.

Play back the footage forwards or reverse randomly.

This creates a random jittery motion in the Y axis. You can modify probability to make or less jitter, and the pos variable to define how large the jitter is.