Which formats can I convert between?

PNG, JPG, WebP and (in supporting browsers) AVIF, in any direction. The quality dial applies to lossy formats like JPG, WebP and AVIF.

Is my image uploaded anywhere?

No. The conversion runs entirely in your browser using the canvas engine — you can watch the network panel and see nothing leaves your device.

Why is my converted file bigger than the original?

Re-encoding a heavily compressed image into a different format can grow it. Try WebP or AVIF at quality 0.8–0.9 for the best size/quality balance.

Yes — free, no account, no daily limits, and it works offline once the app is cached.

WebP to PNG Converter Free — In Your Browser, No Upload

PNG is the safe format for software that has never heard of WebP. Transparency survives and nothing further is thrown away, but the file will usually get bigger.