Image Pixelator - Free Online Pixel Art Maker

Q: How does pixelation actually work?

The tool shrinks your image down to a small grid, so for a pixel size of 8 every 8x8 block becomes a single pixel whose color is the average of that block. It then scales that small version back up to full size without smoothing, so each tiny pixel becomes a crisp square. A larger pixel size means a smaller grid and chunkier blocks.

Q: What is dithering, and when should I use it?

Dithering scatters the available colors in a fine pattern so your eye blends them into a shade that is not really in the palette, like the speckled gradients in old games. We use Floyd-Steinberg error diffusion. Turn it on when you have reduced the colors and flat areas look banded; leave it off for clean, solid blocks of color.

Q: What's the difference between the Full size and Actual pixels export?

Full size saves the image at its original dimensions with big visible blocks, great for sharing or printing. Actual pixels saves the tiny underlying grid instead, so a result that looks like 64x48 chunky blocks downloads as a real 64x48-pixel image. That is what you want for game sprites or icons.

Q: Which file format should I pick?

Use PNG for pixel art because it is lossless, keeps colors and sharp edges exact, and supports transparency. WEBP gives similar quality at a smaller file size in modern browsers. JPEG makes the smallest files but its compression can add fuzz around the blocks and cannot store transparency, so it is least suited to crisp pixel art.

Browse for an image or drag & drop it here

Pixel size

Color palette

Color reduction

Dithering (Floyd–Steinberg)

Show pixel grid

Export

File format

Resolution

Pixelated result

Upload an image (or load the sample) to see the pixelated result here.

Download image Sample image Clear

About the Image Pixelator

What does this tool do?

It turns an ordinary photo or graphic into pixel art — that chunky, blocky look where you can see each colored square. Drop in an image, drag the pixel-size slider, and watch it transform live. Bigger blocks give you a more abstract, retro result; smaller ones keep the picture recognizable while still adding that handmade, low-resolution charm.

Where it goes beyond a basic pixelator is the color side. Real pixel art usually uses a limited palette, so you can shrink the colors down to a fixed set like a Game Boy green, black and white, or CGA, or reduce the color depth per channel for a vintage feel. Switch on dithering and it scatters the colors in a careful pattern to fake extra shades — the classic trick old games and printers used. Everything runs on your own device using the HTML canvas, so your images are never uploaded and the tool works offline once loaded.

How to Use This Tool

Add an image. Click the upload box, drag a file onto it, or hit Sample image to try it on a built-in scene.
Set the pixel size. Slide it up for chunkier blocks, down for finer detail. The preview updates as you drag.
Reduce the colors (optional). Pick a palette like Game Boy or black & white, or lower the color reduction per channel, and toggle dithering to blend the limited colors more smoothly.
Export it. Choose PNG, JPEG, or WEBP. Pick Full size for a large blocky image, or Actual pixels to save the true low-resolution sprite (one block becomes one pixel) — ideal for game art.

Common Use Cases

People reach for a pixelator for all sorts of reasons:

Making game assets: Turn concept art or a photo into a sprite, then export at actual pixel size to drop straight into a game engine.
Retro avatars and profile pics: Give a headshot that 8-bit, old-school look for a forum or social profile.
Censoring or blurring detail: A large pixel size obscures faces, license plates, or sensitive text in a screenshot.
Design and mood boards: Create a stylized, low-fi version of an image for a poster, thumbnail, or background.
Learning color palettes: See how the same picture looks reduced to four Game Boy greens versus a full-color posterize.

Working with vector or other image types? Try our SVG Viewer or browse the rest of our free online tools.

Frequently Asked Questions

How does pixelation actually work?

The tool shrinks your image down to a small grid — for a pixel size of 8, every 8×8 block becomes a single pixel whose color is the average of that block. It then blows that small version back up to full size without smoothing, so each tiny pixel becomes a crisp square. A larger pixel size means a smaller grid and chunkier blocks.

What does the color palette option do?

It maps every color in your image to the closest color in a fixed set. Game Boy uses four shades of green, CGA uses the classic four-color set, and Black & white reduces everything to two tones. Grayscale and Sepia are tone transforms. It's what gives the result an authentic retro-hardware look rather than just a blocky modern photo.

What is dithering, and when should I use it?

Dithering scatters two available colors in a fine pattern so your eye blends them into a shade that isn't really in the palette — think of the speckled gradients in old games. We use Floyd–Steinberg error diffusion. Turn it on when you've reduced the colors (a palette or low color reduction) and the flat areas look too banded; leave it off if you want clean, solid blocks of color.

What's the difference between the "Full size" and "Actual pixels" export?

Full size saves the image at its original dimensions with big, visible blocks — great for sharing or printing. Actual pixels saves the tiny underlying grid instead, so a result that looks like 64×48 chunky blocks downloads as a real 64×48-pixel image. That's what you want for game sprites or icons where every pixel counts.

Which file format should I pick?

Use PNG for pixel art — it's lossless, so the colors and sharp edges stay exact, and it supports transparency. WEBP gives a similar quality at a smaller file size in modern browsers. JPEG makes the smallest files but its compression can add fuzz around the blocks and it can't store transparency, so it's the least suited to crisp pixel art.

Are my images uploaded anywhere?

No. Everything happens locally in your browser on an HTML canvas. Your image is never sent to or stored on a server, and once the page has loaded the tool keeps working without an internet connection. When you close the tab, the image is gone.