WebP to JPG Converter

Images saved from websites often arrive as .webp files, and older photo editors, Office versions, printers and some upload forms will not open them. This tool converts WebP to JPG (or PNG) in your browser, with control over quality, the colour used behind transparent areas and the output width. Your images are not uploaded anywhere.

How to use this tool

1. Drop one or more .webp files into the box.
2. Choose JPG or PNG and, for JPG, a quality — 90% is a good default for photos.
3. Pick the background colour that should replace transparency (white, black or any hex colour).
4. Optionally set a maximum width, then download the files one by one or as a ZIP.

Formula

JPG has no alpha channel, so every pixel is blended onto the background colour B: out = α × pixel + (1 − α) × B, then saved as JPEG at quality q.

α is the pixel’s opacity from 0 (transparent) to 1 (opaque). With a max width M, the scale is M ÷ width when the image is wider than M.

Example

An 800 × 600 px WebP logo with a transparent background, converted with white behind it and a max width of 400, becomes a 400 × 300 px JPG with a solid white background.

Animated WebP

An animated WebP is converted from its first frame, and the result notes how many frames the file had. JPG cannot store animation; to keep every frame, use the WebP to PNG converter with “every frame” ticked in Chrome or Edge.