webp to png converter

the quality slider does nothing on this page

you'll see it, you can drag it, and it will not change your output by a single byte. png is a lossless format, so there is no quality setting to pass to the encoder. cozyconvert leaves the value out entirely when the destination is png.

that means every png you get from this page is a pixel-exact copy of what the browser decoded from your webp. two people converting the same file at slider position 20 and position 95 get identical results. the only things that determine the output size are the image's dimensions and how complex its pixels are.

transparency comes through intact

this is the main reason to pick png over jpg as a destination. png stores a full alpha channel, so a webp logo with a transparent background arrives as a png with a transparent background, edges and soft shadows included.

if you send the same file to jpg instead, every transparent pixel gets filled with solid white, because jpg has nowhere to put transparency. that's a one way trip. when in doubt, convert to png, check whether you actually needed the transparency, and convert to jpg afterwards if you didn't.

the png will be bigger, sometimes a lot bigger

this surprises people, so it's worth setting expectations. webp is compressing aggressively and png is not compressing at all in the lossy sense. going from one to the other reverses the saving that made you use webp in the first place.

roughly what to expect, though it varies with the image:

if the size increase is a problem and you don't need transparency, convert to jpg instead.

animated webp gives you one frame

webp can hold an animation, png (in its ordinary form) cannot. if you feed an animated webp into this converter, the browser decodes it and hands over the first frame, and that single frame is what gets written to png.

no error appears, because nothing technically failed. you just get a still image where you may have expected motion. if you need the animation preserved, this isn't the tool for it, you'd want a dedicated gif or apng converter.

common snags

the fine print