Downscale Art & AI Images to Pixel Art Without Blur
Free smart downscaler: shrink big art or AI images to the pixel size you pick with K-Centroid, so outlines and fills stay clean, not mush. Colour limit too.
AI pixel art drawn on a hidden grid? The Pixel Art Fixer finds its real sizeDrop big art, AI art or an upscaled sprite
How to use the Smart Downscale
- Drop a big drawing, an AI render or an upscaled sprite.
- Pick the target: a width in pixels (the height follows) or a shrink factor.
- Choose K-Centroid for painted or AI art, Dominant colour for upscaled pixel art, or Nearest.
- Optionally limit the colours, then compare before and after.
- Download the PNG at 1×, 4× or 8×.
Using it in your game
Use the 1× PNG in your engine and scale it up there by whole numbers with nearest filtering, so every art pixel stays square. Shrink every asset of one kind to the same width (32 or 64 px for characters, say) so they share a pixel size on screen.
Frequently asked questions
Why does a normal resize turn art to mush?
A browser or image editor averages every block of pixels into one, so a dark outline and the fill beside it blend into a muddy in-between colour, and small details smear. Pixel art needs each pixel to be one clear colour.
What is K-Centroid?
For each output pixel, the block of the image it covers is split into 2 or 3 groups of similar colours with k-means, and the pixel takes the average of the biggest group. An outline crossing the block is one group and the fill another, so the pixel becomes whichever covers more of it, cleanly.
Which mode should I use?
K-Centroid for paintings, AI renders and anything with soft shading. Dominant colour for clean pixel art that was scaled up: it uses only colours the image has, and gives an 8× upscaled sprite back exactly. Nearest takes each block's centre pixel, the classic hard shrink. Add a colour limit to finish with a small palette.
How is it different from the Pixel Art Fixer?
The Pixel Art Fixer is for AI "pixel art" drawn on a hidden grid: it measures that grid and rebuilds the sprite at its own size. Smart Downscale lets you choose the size, by width or by factor, for any image, grid or not. If the fixer finds no grid, or you want a different size, use this one.
Is anything uploaded?
No. Everything runs in your browser, with no account and no limit. The free downscale_pixel_art tool on the Voidless MCP server does the same from Claude Code or Cursor.
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