Identicon Generator

Generates a 5x5 symmetric identicon (GitHub-style avatar) from arbitrary text. It hashes the input with a bitwise reducer, derives hue/saturation/lightness for the foreground color, and mirrors a 3-column pattern across the canvas for left-right symmetry. Output canvas sizes are 64, 128, 256, or 512 px, with five preset examples (github, hello, react, world, 1024toolbox).

1. Type any text, click Generate Random for an 8-char random string, or click an example chip. 2. Pick a canvas size (64 / 128 / 256 / 512). 3. Preview the identicon, its dimensions, and the foreground HSL color, then click Download PNG to save identicon-<text>.png.

Two 32-bit hash words drive the 15 cells of a 5x3 pattern (mirrored to 5x5). The foreground color is HSL with hue 0-359, saturation 50-80, lightness 40-60, all derived from the hash; the background is a fixed light gray (#f0f0f0). At 64px the canvas uses image-rendering: pixelated for crisp scaling.