Particle effects, usually made by code.
green circular particle scramble / swirl by Sean Free PRO
A nice colorful effect called Plasma Particles (by Marko Å valjek). Make sure you change the settings a bit in top right co ...
HTML Canvas particles with collision, Sattelite particle effects, created by Marko Å valjek
Hyperstellar particles animation created by Tiffany Rayside
Eye laser experiment by Lukas Haring
Canvas Bokeh Generation, a nice colorfull particle effect created by Jack Rugile
A nice particles effect; rainbow Falls (with force), like matrix colored letters. Created by FlyC.