Make custom transparent brat stickers for WhatsApp, Telegram, iMessage, and graphic design overlays.
Alpha channel checkerboard background preview — compatible with chat apps
A brat sticker generator creates a transparent background image in the style of Charli XCX's Brat album cover, sized and formatted to use as a sticker on WhatsApp, Telegram, iMessage, or inside your own design projects. Type your text or upload a photo, adjust the style, then download a transparent PNG with no background box around it.
For a full cover style image with a solid background included, use Brat Generator.
Each messaging app has its own exact size, format, and file size rules for stickers. Getting these wrong is the most common reason a sticker gets rejected or looks wrong once uploaded.
WhatsApp. Stickers must be exactly 512 by 512 pixels, in WebP format, with a transparent background, and under 100KB per sticker. A sticker pack needs between 3 and 30 stickers, plus a 96 by 96 pixel tray icon. WhatsApp does not accept PNG files directly for sticker packs.
Telegram. One side of the image must be exactly 512 pixels, in PNG or WebP format with transparency, and under 512KB for a static sticker. Telegram allows more flexibility than WhatsApp since only one side needs to hit the exact pixel count, which allows non-square sticker shapes.
iMessage. Apple does not enforce one single strict pixel size the way WhatsApp does. A square PNG with a transparent background, at a resolution of at least 300 by 300 pixels, works well across the different sizes iMessage displays stickers at in conversations.
This tool exports a transparent PNG by default, which works directly for iMessage and for general design use. For WhatsApp and Telegram sticker packs specifically, you will need to convert the PNG to WebP format first, since neither platform accepts a plain PNG upload for a sticker pack. Use PNG Converter to handle that conversion step.
No account is required, and there is no limit on how many stickers you can generate for a full pack.
WhatsApp displays stickers at roughly the size of a small icon in a chat thread, not full screen, so detail that looks fine at full size can disappear once sent. Keep text short, use a bold weight, and avoid a heavy blur setting if legibility matters more than matching the exact original cover look. A sticker built around one word or a short phrase reads far more reliably in a chat thread than a full sentence.