Is transparency preserved?

Yes. Padding stays fully transparent, and the PNG output format supports an alpha channel.

Is my photo uploaded to a server?

No. All processing happens in your browser; the file is never sent anywhere.

Enable "Allow upscaling". Quality will suffer, so a larger original is always better.

Runs in your browser

Telegram requires stickers to be PNG files of exactly 512×512 pixels. This tool resizes any image to fit, preserving aspect ratio and transparency.

Getting ready…

drop it here or paste with Ctrl+V · the file never leaves your device

How to fit

Whole image; leftover space becomes transparent padding

Aspect ratio

Framing

Anchor

Where to pull the content when it does not fill the frame, or overflows it

Upscaling

Width Height Format

Transparent padding Allow upscaling

Remove background

Brush Paint on the image

Layers Add image

Put an image on top — a logo, a sticker, a watermark.

Is transparency preserved?: Yes. Padding stays fully transparent, and the PNG output format supports an alpha channel.
Is my photo uploaded to a server?: No. All processing happens in your browser; the file is never sent anywhere.
What if my image is smaller than 512 pixels?: Enable "Allow upscaling". Quality will suffer, so a larger original is always better.