To start off, it is possible with many ways to see in 3D in your computer without glasses. I’m going to explain one of them. Crossview 3D.
How to do that? Well, it’s easy. Cross your eyes like you’re drunk, so you see a third picture (link above, just click one). Then focus on the third picture. Slowly, you will master this skill, and you can even read in secret code, and enjoy a fine time.
Here’s a tutorial taken from the right side of reddit:
How To View: Simply cross your eyes focusing between at the pictures until both images overlap one another, when it works you will know it!