Wemute

Convert JPG to WebP

To convert JPG to WebP, drop your images below. WebP is usually 25–35% smaller than JPG at similar visual quality, which speeds up page loads and improves Core Web Vitals.

  • No upload
  • No sign-up
  • Many files download as one ZIP

Convert to

How it works

Three steps

  1. Drop your JPG files, or click to choose them.

  2. WebP is already selected — adjust quality or size only if you want to.

  3. Convert, then download each file or everything as a ZIP.

Good for

  • Speed up blog and store pages
  • Improve Lighthouse and PageSpeed scores
  • Save storage on image-heavy sites

Questions

About JPG to WebP

Do all browsers support WebP?

Yes. Chrome, Edge, Firefox and Safari (since Safari 14 on macOS Big Sur and iOS 14) all display WebP.

Which quality setting should I use?

Balanced is a good default for websites. Choose High for hero images and photography portfolios, Small for thumbnails.

Can I convert many images at once?

Yes. Drop a whole folder's worth of images, set one output for the whole batch, and convert them in one go. Several results download together as a single ZIP.

Are my files uploaded?

No. Wemute converts files inside your browser tab with your device's own processor. The file contents and names never reach our servers, and nothing is kept after you close the page.

Format comparison

How JPG and WebP differ

JPGWebP
CompressionLossyLossy or lossless
TransparencyNoYes
Best forPhotos you need to share or upload anywhereImages on websites
CompatibilityUniversalAll modern browsers; some older apps lack it

JPG: The safest choice for compatibility. Transparent areas become white. WebP: Typically 25–35% smaller than JPG at similar quality, with transparency.

Wemute for Mac

Word, Excel, PDF, e-books and 100 more conversions, OCR, background removal and subtitles — all on your Mac. Free and open source.

Get it on GitHub