Saved an image and got a .webp nobody can open?
Websites serve WebP because it's small. PNG is what editors, slide decks and older apps expect. Open your file, or one of four WebPs built in your browser just now. The page reads its RIFF chunks, decodes every frame, and writes the PNG with its own encoder. It can carry over the colour profile, EXIF and XMP, and turn an animation into an animated PNG.
A lossy WebP threw detail away to get small. PNG is lossless, so it has to store every pixel the WebP decoder produced, including the faint noise lossy coding adds. Lossless WebP and PNG use the same idea, predicting each pixel from its neighbours; how close they end up depends mostly on how hard the encoder tried. Here the opposite happened: your browser’s lossless WebP of the screenshot is 189 KB and the PNG made from it only 45 KB. A canvas asks for a quick, low-effort lossless encode; a tuned encoder (cwebp -lossless -z 9) would normally come out well under the PNG. Every bar here is a measured file: the WebP, the PNG this page writes from it, and for opaque images a quality-90 JPG for comparison.
Measured here: the lossy photo grew ×8.4, while the browser-made lossless screenshot shrank to 24% as PNG. For a photo, JPG at 90 lands at 287 KB, so if you only need something that opens everywhere, convert to JPG instead.
Each ANMF chunk holds one frame, its position, how long it shows, whether it blends onto what's below, and whether it's cleared afterwards. Plain PNG holds one picture, so a converter must flatten the frames onto a canvas in order and then pick one, save them all, or write an animated PNG (APNG). Every browser in use today plays APNG. Here, using the animated test sticker: 12 frames, 320×320.
Left: the RIFF chunks of hero-image.webp with their offsets. Right: the PNG chunk each one became. Most online converters draw the image to a canvas and save that, which drops the profile, EXIF and XMP without a word.
Yes, WEBP to PNG conversion is completely free with no signup, no watermark, and no usage limit. Convert as many files as you need.
No. The WEBP to PNG converter runs in your browser when your file is supported there, so the file stays on your device for that workflow, reducing server exposure for that workflow. If the file is sensitive, check the processing mode first.
Most WEBP to PNG conversions finish in under a minute. Bigger files take longer, in proportion to their size. There is no queue to join and no account to make first.
Depends on what you are converting between. Go lossless to lossless and the picture or the audio comes out untouched. Go to a lossy format and you give up a little to get a smaller file.
Yes. The WEBP to PNG converter works on phones, tablets, and desktops in any modern browser including Chrome, Safari, Firefox, and Edge.