WebP to JPEG

No. Decoding and encoding both run inside your browser using a Web Worker. Your files never touch a server, which is why there is no size cap beyond your own available memory and no daily conversion limit.

Yes, and it tells you what it removed. Re-encoding always discards metadata, but most converters do this silently. This tool reads the metadata first so you can see the exact GPS coordinates, camera model and timestamp that were in the file before they were dropped.

Formats such as JPEG have no alpha channel, so transparent pixels must be filled with something. Many tools default to black because that is what an unpainted canvas holds in memory. Here you pick the colour, and the tool only asks when the image genuinely contains transparent pixels.

Yes. Drop in as many files as you want and they are processed in parallel, capped to one less than your CPU core count so the page stays responsive. Browser-based converters usually handle one file at a time; this one does not.