asantoolConvert PNG to WebP
This is usually the best thing you can do to a large PNG. WebP keeps the transparency, and typically lands at a fraction of the size — the saving is far bigger than compressing the PNG as a PNG.
Drop an image here to compress it
JPG · PNG · WebP · GIF · BMP · several at onceUp to 50 MB · Your files never leave your deviceHow it works
4 steps, no waiting.
- 01Add your PNGDrag a file onto the page or pick one from your device. On a phone this opens your camera roll directly.
- 02Confirm the output formatThe tool is already set to write WebP. Change it if you decide you want something else.
- 03Adjust the quality if you want toThe default is a sensible balance. Compare before and after to see whether you can push it further.
- 04DownloadSave the WebP file. Your original is untouched.
Questions
Common questions
Does WebP keep my transparent background?
Yes. WebP supports an alpha channel, so a logo or cutout converts cleanly with its transparency intact. That is the main reason to choose it over JPG for this kind of image.
How much smaller will it be?
For a photographic PNG, often five to ten times smaller. For flat graphics with few colours the gap is narrower, because PNG is already efficient at those.
Is my image uploaded anywhere?
No. The work happens in your browser using image APIs it already ships with, so the file never leaves your device. There is no upload to wait for and nothing stored on a server afterwards.
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