Preview

Compare

Node GraphRight-click empty space: add node · drag pins: connect · Delete: remove · wheel: zoom

Input

Output

Offset X

Offset Y

Downscale

Input

Long side

Output

Long side

Method

Detail

Alpha

Palette Extract

Input

Color count

Palette

Color count

Criterion

Color space

Merge similar (0=off)

Merge order

Metric

Ignore backgroundAll frames

Locked colors0

Click an extracted color to lock it. Locked colors are always kept when re-extracting.

Dither

Input

Palette

Output

Method

Strength100%

Color space

Output

Input

100%

Open an image first ('Open Image' or drag & drop)View —Cache 0/Computed 0 · 3 ms

How to Use the Image Pixelizer (PixelForge)

Spritfy PixelForge is a free online tool that turns photos, illustrations and AI-generated images into pixel art. Connect downscale, palette extraction, dithering, outline and post-effect nodes into the pipeline you want, and process animated GIFs frame by frame. Everything runs inside your browser, so images never leave your device.

How to Use

Drop an image or click to open one. You can also paste from the clipboard with Ctrl+V.
Pick a preset (Default, Pixel Snap, Line Cleanup, PIA Portrait) or right-click the empty canvas to add nodes.
Drag pins to connect nodes and adjust long side, color count, dithering and more — the preview updates instantly.
Save as PNG, GIF or a PNG sequence (ZIP), or copy the result to the clipboard.

Key Features

10 downscaling methods: Box, DPID, Bilateral, SSIM, SLIC, Lanczos and more
25 Lospec palettes, automatic palette extraction (PCA / k-means / median cut), 8 dithering modes incl. Floyd, Atkinson and blue noise
Pixel-art cleanup nodes: Pixel Snap, Grid Restore, AA Removal, 1px Cleanup, Bresenham outlines
GIF frame processing, animated noise generator, de-flicker, and shareable presets

FAQ

Are my images uploaded anywhere?: No. All processing happens in a web worker inside your browser; nothing is sent to a server.
Can I convert AI-generated images into pixel art?: Yes. Use AI Denoise, Color Cleanup and Merge Colors to tame noise, then downscale and map to a palette for clean results.
Does it support animated GIFs?: Yes. Every frame runs through the same graph, palette extraction can lock to a fixed frame to avoid color flicker, and you can export a GIF or a PNG sequence.

PixelForge · Image Pixelizer