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Steady feed of new illusions with the comments doing the debunking, which is usually half of the entertainment.
Opens in a new tab. We do not control this site and it may have changed since we catalogued it.
r/opticalillusions sits in Optical Illusions under Weird, filed as a minute.
About this category: Illusion collections and perception demos. The good ones keep working after you have been told exactly how they work.
Yes. r/opticalillusions is free to use and needs no account.
No. You can use r/opticalillusions without signing up for anything.
Yes. r/opticalillusions works on phones as well as desktop browsers.
Yes, we file it as safe for work. It also works muted.
We file it as "A minute": One quick round, then you can leave.
The lab page of the psychologist whose completely static images refuse to stop rotating, added to for over twenty years.
Gianni Sarcone's workshop of puzzles and illusions, half optical trickery and half mathematical recreation, running since the 1990s.
Annual contest in which vision scientists compete to fool you, with every finalist since 2005 still watchable.
Plain, well-sorted illusion collection with the explanation directly underneath each one, from café walls to impossible triangles.
Archive of the experiment where one button and one click each spawned genuine factions, martyrs and a working theology within days.
One button, one random inhabited spot on Earth in Street View, most of them somewhere nobody would ever have chosen to look.
Blows one image up into a multi-page halftone poster that you print at home and tape across an entire wall.
Leaves a trail of emoji behind your cursor. There is nothing more to it than that, and nothing more is needed.
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