LIVE
BlackPalette
Pull the palette out of any image.
Drop, paste, or pick an image. Pixels stay in a Web Worker; nothing is uploaded or stored.
Drop, paste, or click to pick an image
JPG, PNG, GIF, BMP, WebP · 30MB max
What it does
Median cut quantization runs in a Web Worker. Raw pixels never reach the main thread or any network.
01
Load
Drop, paste, or pick. Magic-byte validation.
02
Downsample
Image scaled to 512px longest side in the worker.
03
Quantize
Pure median cut algorithm. Dominant, vibrant, muted, gradient.
04
Export
CSS, Tailwind, JSON, or ASE binary swatch file.