WebP Converter

Every current browser supports WebP, and has done for years. The gaps are in older desktop software and some legacy CMS uploaders — that is exactly when you would convert back to JPG or PNG.

Typically 25–35% smaller at equivalent visual quality. Against PNG the difference is larger — flat graphics and screenshots often drop by more than half.

Yes, which is one of its main advantages. Converting a transparent PNG to WebP keeps the alpha channel; converting to JPG does not.

Older versions of Windows Photo Viewer, Photoshop and various image viewers never added WebP support. Convert the file to PNG or JPG here and it will open anywhere.

Yes, completely. There is no account to create, no trial that expires, no watermark on the output and no feature held back behind a paywall. The site is supported by unobtrusive advertising, not by charging you.

No. WebP Converter runs entirely inside your browser, so your files never leaves your device. You can confirm this by opening your browser's network tab — there is no upload request.

Yes. Because processing happens locally, there is no copy of your data on any server to leak, subpoena or lose. Nothing is logged and nothing is stored.

Yes. The interface is built mobile-first, with touch-friendly controls and layouts that adapt to small screens. Everything that works on a desktop works on a phone.

Once the page has loaded, yes. All processing is local, so you can carry on working if your connection drops.

Any current version of Chrome, Edge, Firefox, Safari or Opera, on desktop and mobile. If something behaves oddly, updating your browser resolves it in almost every case.

There is no server-side limit because nothing is uploaded. Files up to about 50 MB are comfortable on a typical device; beyond that, processing speed depends on your machine's memory.

Yes. Whatever you produce here is yours — use it in client work, products, packaging or publications. There is no watermark, no licence to accept and no attribution required.

No. There is nothing to keep: your data is never transmitted, and it is cleared from memory as soon as you close or reload the page.