Geometric Pattern Generator

From sliders to pixels, without a server round trip

Every pattern mode shares one pipeline. The page reads your numeric inputs, seeds a small deterministic random stream so shuffle stays reproducible until you randomize again, builds an HSL palette, then walks geometry in polar coordinates around the canvas center.

Kaleidoscope mode mirrors strokes across wedges. Mandala mode stacks rings and places markers on each ring. Spiral mode connects samples along a growing radius so the line tightens toward the middle. Polygon mode rotates a base polygon outline and repeats copies around the hub. Flower mode fills soft disks along petal angles. Celtic-style mode draws staggered circular segments to suggest braiding even though the topology is not mathematically exact.

Rendering stays on your device. Teachers use snapshots in slides; hobbyists post crops online; students compare symmetry orders against homework sketches from the symmetry pattern creator when instructors ask for folded-paper analogies.

Heavy Depth values on older laptops still cost real time because each frame walks thousands of segments. If the preview stutters, lower Depth first before shrinking symmetry, since wedge mirroring is cheaper than extra concentric detail.

Stop expecting print-ready vectors from a browser canvas

The download is a PNG. Lines look crisp at the size you see because the canvas scales with your screen density, yet enlarging the file later still behaves like any bitmap. For posters, export while the preview occupies most of your monitor width.

Animation is a preview aid. The motion rotates phase angles inside the drawing functions. The saved PNG always reflects the static moment after you toggle Animate off.

Color palettes bias toward teaching-friendly contrast. They are not ICC-managed print proofs. If you need spiral-only studies with different growth laws, open the spiral generator alongside this page and compare how each engine interprets radial growth.