Read this first: this WebP is lossless
WebP comes in two kinds. Lossy WebP is the small one websites use for photos. Lossless WebP keeps every pixel exactly, like PNG. The engine behind this page can only write the lossless kind today — no permissively licensed lossy WebP encoder has been approved for it yet — so we'd rather say it plainly than let you discover it from the file size:
- A JPG photo converted here usually comes out larger — often several times larger — because lossless WebP has to store all the fine grain and JPEG artefacts exactly.
- A PNG, screenshot, logo or illustration usually comes out smaller than the PNG, with identical pixels. That's where this converter earns its keep.
The page shows both sizes side by side, so you'll see which case you're in before you download.
When to use it
- A website builder, app or upload form asks specifically for .webp.
- You have graphics, screenshots or images with transparency and want a smaller file than PNG with no loss at all.
- You need a lossless copy for further editing in software that prefers WebP.
If what you want is a smaller photo for a web page, a well-compressed JPG is the better result from this site today: try compress to 200 KB or set your own limit with compress to KB.
Details
- Transparency is kept.
- WebP holds at most 16,384 pixels on a side; larger images need to be resized first, and the page will say so.
- The new file carries no EXIF data, and the photo is turned upright first. A colour profile is kept.
Going the other way: WebP to JPG.