New online tool: Plasma Fractal Generator, to create plasma fractals with the diamond-square algorithm.
Better layout on phones for about 30 tools, including the 3D Text Generator, the Button generator and the Three-Body Problem Simulation: the options now go above the image, and the image shrinks to fit the screen instead of making the page scroll sideways.
Oct 18, 2026
New online tool: Mandelbulb 3D Fractal, to rotate, zoom into and fly through the 3D version of the Mandelbrot set in real time, drawn by the graphics card with WebGL
Oct 17, 2026
Hand-drawn Maze Generator: in the mazes of free curves, the exit is now open on the right side of the maze and marked with an arrow, instead of being a dead end marked with a star.
The Abelian Sandpile Generator is now called Abelian Sandpile, has a new address: /abelian-sandpile, and moved from the image generator tools to the animation generator tools.
Abelian Sandpile: a choice of algorithm, between the textbook synchronous steps and the faster row-by-row steps; a choice of speed in steps per second; the grains can be dropped one at a time, each one after the avalanche of the previous one; and a click on the image drops a grain on a cell while the toppling is paused or once the sand is stable. The animation "Step by step, like the preview" follows the same steps, including the clicked grains.
Abelian Sandpile: pause and resume the toppling, follow it step by step with the "Next step" button, and replay it from the start.
Abelian Sandpile: the cells that are still unstable while the sand topples have a color of their own in every palette, instead of the color of the cells with 3 grains.
Abelian Sandpile: download the simulation as a video (WebM) or animated GIF, showing the pile growing grain by grain or the sand toppling, with a choice of duration and speed.
In the online tool Bouncing Balls Inside a Circle, added different options of initial positions for the balls (custom positions, random positions, build a shape, use a formula).
In the online tool Bouncing Balls Inside a Circle, added 3 new options of ball color generation (per initial x position, per initial y position, per distance from mean position).
