PixHeic
Convert HEIC to PNG for Telegram Stickers
Telegram's sticker bot wants a transparent 512 × 512 PNG or WebP. Convert the format here, then size it for the bot.
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Convert HEIC to PNG now
Drop your .heic files into the converter and download lossless PNGs with any transparency intact. Decoding runs on your device via WebAssembly, so nothing is uploaded to a server.
Open the PNG converter Free, no sign-up, no watermark. Alpha channels are preserved.Zero uploads
The decoder runs in your browser via WebAssembly. Your files never touch a server, so there is nothing to retain, leak or subpoena.
Transparency preserved
If your source carries an alpha channel, it survives the conversion intact. PNG is the only common photo format that keeps it.
Lossless output
PNG stores every pixel exactly. Re-saving a sticker ten times leaves it identical to the first save, unlike JPEG.
What the sticker bot expects
Telegram accepts PNG and WebP for static stickers, with a transparent background and a 512-pixel edge. HEIC is not among the accepted formats, so an iPhone image is rejected before the bot even looks at the dimensions.
Because Telegram also accepts WebP, our HEIC to WebP converter is an alternative that produces noticeably smaller files — useful for a large pack.
Sizing for the pack
One side must be exactly 512 pixels with the other no larger, so square artwork at 512 × 512 is the simplest approach. There is a file size ceiling too, which PNG can exceed on detailed artwork — WebP is the fallback if it does.
Use the 512 px sticker preset in the Output size control and the file comes out ready for the bot. Requirements shift occasionally, so confirm with @Stickers' own instructions before building a full pack.
Converting preserves transparency — it does not create it
PNG supports an alpha channel, and this converter carries one across if your source already has one. A normal photo taken on a camera has no transparency, and converting it to PNG will not cut the subject out — you will get the same picture with the same background, in a larger file.
To get a transparent subject, remove the background first. On an iPhone, press and hold the subject in Photos to lift it out, then share it as an image; on a desktop, use the background removal in your editor of choice. Convert afterwards and the transparency comes through.
Frequently asked questions
Will my transparent background survive the conversion?
Yes, if the source has one. HEIC supports an alpha channel and PNG preserves it, so a lifted subject or an edited cut-out comes through with its transparency intact. What conversion cannot do is add transparency to a photo that never had it.
Does this tool resize images to the required dimensions?
Yes. The converter has an Output size control with presets for the common targets — Discord and Slack emoji at 128 px, Twitch emotes at 112 px, stickers and avatars at 512 px — each of which centre-crops to a square and scales the longest edge down as it converts.
Large reductions are done in halving steps rather than one draw, which is what keeps a 128 px emoji from looking crunchy. Images are never enlarged: ask for 512 px from a 300 px source and you get 300 px.
PNG or WebP for Telegram stickers?
Telegram accepts both. PNG is lossless and the safer default; WebP produces much smaller files, which matters if a detailed sticker exceeds the size ceiling. Both support transparency, and our WebP converter runs the same way in your browser.
Is anything uploaded to a server?
No. PixHeic decodes your file with a WebAssembly build of libheif that runs inside your own browser tab, so the image is read from your device into memory and converted there. You can confirm it in your browser's Network tab, or disconnect from the internet after the page loads and convert anyway.