Convert PNG to WebP

Yes. JPEG has no alpha channel, so any transparent areas in your PNG are flattened onto a solid matte color that you choose before converting. If you need to keep transparency, convert to WebP instead, which supports an alpha channel.

WebP typically produces smaller files than JPEG at similar visual quality, and it supports transparency, which JPEG does not. JPEG remains the safer choice if you need maximum compatibility with very old software or contexts that do not support WebP.

For WebP and JPEG, the quality slider controls the compression level: lower values produce smaller files with more visible compression artifacts, higher values keep more detail at the cost of a larger file. PNG is lossless and always uses full quality, so the slider does not apply to it.

Each format compresses differently. Each result card shows the original file size next to the converted size so you can see exactly how much smaller (or larger) the new format made your image before you download it.

Yes. Drop in a batch of PNG, WebP, or JPEG images, pick one target format and quality setting, and download the converted files individually or as a ZIP.

No. The conversion is done entirely in your browser — each image is decoded and re-encoded locally, with nothing sent to a server.