Is this AI upscaling?

No. It is exact resampling that runs instantly and never invents detail. Pixel art comes out perfect; photos get bigger but not sharper.

Is there a size limit?

Browsers cap a canvas at 16384 pixels per side; the factor is reduced to stay under it.

Is anything uploaded?

No. The whole tool runs in your browser tab. Files never leave your device.

Is it really private?

Yes. The tool is code that runs in your browser tab. Your PNGs are never sent to a server.

i goon to PNG

Upscale a PNG

Pixel-perfect mode turns every pixel into a clean square: sprites, favicons, retro art and tiny screenshots stay sharp. Smooth mode interpolates in steps for photos and gradients.

drop it. goon.

drop your images here, or paste them. you know you want to.

stays in your browser. nothing leaves. nothing is watching.

how to upscale a PNG

1Drop your images.
2Pick the factor and the method.
3press goon and download.

questions

Is this AI upscaling?: No. It is exact resampling that runs instantly and never invents detail. Pixel art comes out perfect; photos get bigger but not sharper.
Is there a size limit?: Browsers cap a canvas at 16384 pixels per side; the factor is reduced to stay under it.
Is anything uploaded?: No. The whole tool runs in your browser tab. Files never leave your device.
Is it really private?: Yes. The tool is code that runs in your browser tab. Your PNGs are never sent to a server. Open the network tab and check. Nobody is watching. Goon in peace.

Pixel-perfect versus smooth

Pixel-perfect mode turns each pixel into an exact square of pixels: sprites, emoji, favicons, retro art and tiny UI screenshots stay razor sharp instead of turning into a blur. Smooth mode interpolates in steps of two for photographs and gradients, which avoids the ringing you get from a single big jump.

What it will not do

It does not invent detail. A 200-pixel photo enlarged four times is a bigger 200-pixel photo. For that you want a machine-learning upscaler; this tool is for the cases where exact resampling is the right answer, and it runs in a blink on any device.

more PNG tools. you know you want to.

EditCrop, text, stickers, arrows, blur, erase, remove the background. Fast, in the tab.goon CompressMake images much smaller. Pick the quality, keep the format.goon ConvertJPG, PNG, WebP, GIF, BMP, AVIF in. JPG, PNG or WebP out.goon ResizeBy percent, by width or height, or to fit inside a box.goon CropTo a ratio (square, 16:9, story) or exact pixels. Whole batches at once.goon Remove backgroundFlat backgrounds gone, transparent PNG out. Logos, screenshots, product shots.goon

all PNG tools →