WebP is an excellent modern format — small files, good quality — but the real world has not fully caught up. Older apps, some CMSs, email clients and print services still refuse it, and downloading an image from the web increasingly means receiving a .webp file your tools cannot open.
This converter decodes each WebP image in your browser and re-encodes it as a JPG, the format that everything everywhere accepts. Transparent areas are filled with white first, because JPG has no alpha channel. Pixel dimensions are preserved exactly.
Conversion happens locally on your device — useful when you are converting images you just downloaded and want to use immediately, with no upload round-trip.