Convert JPG to WebP

Make existing JPG photos web-light by re-encoding them as WebP — locally, with the output size visible before you save.

Drag an image here or tap to browse

JPG (and any other image) · free · your image stays on your device

How it works

  1. Drop your JPG. A product photo, a blog image, a gallery shot — the tool reads it locally and applies its EXIF rotation.
  2. Balance quality vs. size. Slide the quality control and convert; the result view shows the exact KB the WebP will have compared to the original.
  3. Save the WebP. Download and deploy. Keep your original JPG as the master — the WebP is your delivery copy.

Your camera and phone produce JPGs, but the web has moved on: serving the same photo as WebP delivers the same visual quality in roughly two-thirds of the bytes. For shops, portfolios and blogs that difference shows up directly in loading speed and search rankings.

This page re-encodes your JPG on your device with the libwebp encoder (WebAssembly). You choose the quality, and the tool shows the real output size next to the original — no guessing, no “your file is being processed” upload queue, no server copy of your photos.

A good workflow: keep the JPG as your archive master, deploy the WebP, and if a particular image must hit a hard size limit, let the compressor find the exact quality for a KB target.

Frequently asked questions

How much smaller does a JPG get as WebP?

At comparable visual quality, WebP is typically 25–35% smaller than JPG. On a photo-heavy page that difference alone can shave seconds off the load time on slow connections.

Is re-encoding an already-compressed JPG a problem?

It is a second lossy generation, so a small amount of quality is lost — that is unavoidable in any JPG-to-WebP conversion anywhere. Using quality 85–90 keeps the loss invisible in practice. Avoid repeating the round-trip many times.

When should I NOT convert to WebP?

When the image is headed for e-mail attachments, print services or older software — JPG remains the safest bet there. WebP shines specifically for images delivered over the web in a browser.

Does this tool change the resolution of my photo?

No, the pixel dimensions stay exactly the same; only the encoding changes. If you also want to downscale for the web, open the result in the editor and resize it there before exporting.

More tools

Convert PNG to WebPConvert WebP to JPGCompress image to a target size

Every tool runs right in your browser — free, no sign-up, no watermarks. Your images never leave your device.