What is Strobe Illusion?
Strobe Illusion is an optical illusion by Neave Interactive, the studio of Paul Neave. It plays a stroboscopic animation and asks you to stare at its centre for 30 seconds.
When you look away, the room, your hands or a face nearby appear to stretch, ripple and distort for a few seconds. It is a strong version of the motion aftereffect, where your eyes adapt to constant movement and briefly misread still things. The page then asks whether it worked and lets you go again.
Main Features
- Guided 30-second stroboscopic animation
- Strong warping aftereffect when you look away
- Simple one-button start
- Flashing lights warning before you begin
- Works on desktop and mobile browsers
- Companion iOS app also available
How to Get Started with Strobe Illusion
- Open strobe.cool and read the warning.
- Press Start and stare at the centre of the animation for 30 seconds.
- Look away at your surroundings or someone's face.
- Press Do it again to repeat it.
Strobe Illusion Pricing
Strobe Illusion is free to use in the browser with no sign-up. A free iOS app version is also offered.
Who Should Use It?
- Fans of optical illusions
- Teachers showing how perception works
- Friends looking for a quick wow moment
- Anyone curious about how their eyes adapt
Strobe Illusion Alternatives
- Zoomquilt: endless zooming painting
- WebGL Fluid Simulation: colourful fluid you can stir
- Silk: draw symmetrical light art
Frequently Asked Questions
Is Strobe Illusion free?
Yes. It is free to use in your browser with no account.
Is Strobe Illusion safe?
It uses flashing animation. Do not use it if you are sensitive to flashing lights or have photosensitive epilepsy.
Why does everything warp after Strobe Illusion?
Staring at constant motion tires the parts of your visual system that detect movement, so still things briefly seem to move. This is called the motion aftereffect.