Black Hole Simulator
Explore the motion of stars and matter around a black hole
— in real time, right in your browser.
Initializing simulation...
simulation control
time speed
0.05
particle size
1.0
black hole mass
10000
spawn rate
1.0
trail time (seconds)
5
ejection speed
20
organic particles
100
spiral speed
0.5
black hole separation
100

Accurate Orbital Physics
Stars follow realistic, physics-based paths influenced by a central black hole. The simulation mimics gravitational pull and velocity changes based on distance and mass.

Relativity, Visualised
Experience orbital precession, time dilation, and the warping of space-time. This tool turns complex concepts into a visual, intuitive experience.

Free & Browser-Based
No downloads or installs — just launch and explore. The simulator runs smoothly in your browser and is completely free to use.