WebP converter.

WebP is the format that finally made image optimisation boring, in the best sense. Every browser that matters has supported it since 2020, it handles both photographs and flat graphics, it keeps transparency where PNG would, and it does all of that at roughly a third less weight than the equivalent JPG. If your site is slow and you have not converted your images yet, this is the single change with the best effort-to-result ratio available to you.

This converter runs entirely in your browser using the Canvas API. Your files never travel to a server, which means there is no upload wait, no queue, no file size cap imposed by someone else's bandwidth bill, and no question about what happens to your client's unreleased product photos. Close the tab and nothing remains.

The quality slider matters more than people expect. At 100% WebP is nearly lossless and barely smaller than your original. At 82%, the default here, most photographs are visually identical to the source at around a third of the weight. Below 60% you start seeing artefacts in gradients and skies. Convert one representative image first, look at it at full size, then batch the rest at the setting that held up.

Worth knowing

• Resize before you convert. A 4000px photo displayed in a 800px column wastes bandwidth no format can recover — use the target size dropdown to cut it down first.
• Downloads are renamed to the cipdesign-your-file-webp.webp pattern. Rename them again to describe the actual subject before uploading: image search reads filenames.
• Keep the originals. WebP conversion is lossy and one-way; if you re-edit later you want the untouched file, not a re-compressed copy of a copy.