Both WhatsApp and Telegram want the same thing: a 512×512 WebP with a transparent background. Cut your subject out with the on-device AI, then export exactly that — no sticker app, no watermark, no upload.
The size readout tells you honestly whether you're under WhatsApp's 100 KB sticker cap.
Chat-app-ready stickers
Both WhatsApp and Telegram want a 512×512 WebP with a transparent background. Cut your subject out with the on-device AI, then export exactly that — no sticker app, no watermark, no upload. The size readout tells you honestly whether you are under WhatsApp’s 100 KB sticker cap.
How it works
Drop a photo and run Cut out to remove the background.
Open Sticker — the preview shows the transparent 512 canvas.
Download the .webp and add it with your sticker app of choice.
Like every pixelpix tool, this runs 100% in your browser: your file is never uploaded to a server, never leaves your device, and works even offline once the page has loaded.
Frequently asked questions
What size and format do sticker apps need?
512×512 pixels, WebP format, with a transparent background — which is exactly what this tool produces.
How do I get a transparent background?
Run the Cut out tool first to remove the background, then open Sticker; the transparency carries through.
Why does WhatsApp reject my sticker?
Usually it is over the 100 KB limit. Simpler images with flat areas compress smaller; the readout shows your size so you can tell.