CalcBrew

Image Converters

JPG to WebP

Shave a third off your photo weight for the web. The same sharpness, faster pages, better Core Web Vitals.

Runs in your browser — files never leave your device.

Drop JPG files here

or click to browse · paste from clipboard · up to 100 MB each

Select files
Options

Higher quality means a larger file. 80–90 is invisible in most photos.

Share:

Why convert JPG to WebP

At equal visual quality, WebP encodes photos 25–35 % smaller than JPG thanks to better prediction and entropy coding. On an image-heavy page that is seconds off the load time on mobile connections.

Converting from a JPG re-encodes an already-compressed image; keep WebP quality at 80–85 to avoid stacking artefacts. If you have the original RAW or PNG, convert from that instead.

How it works

  1. Drop JPG file onto the box above, click it to browse, or paste from the clipboard.
  2. Adjust the options if you need to — the defaults suit most cases.
  3. Press Convert. The work happens on your device, so speed depends on your computer or phone.
  4. Download the WebP — individually or all at once.

About the formats

JPG · JPEG image · .jpg

The universal photo format: small files, supported by every device, camera and website, but no transparency and slight quality loss on each save.

  • JPEG compression discards fine detail the eye rarely notices; quality 80–90 is usually indistinguishable from the original at a fraction of the size.
  • Re-saving a JPG repeatedly adds generation loss, so keep an original and export copies.
  • JPG has no alpha channel — transparent areas become white or black when converted from PNG.

WebP · WebP image · .webp

Google’s web image format: 25–35 % smaller than JPG at the same quality, supports transparency and animation, but not every desktop app can open it.

  • WebP has both lossy and lossless modes, and both support transparency.
  • All modern browsers support WebP; older image editors, Windows Photos before 2020 and many print workflows do not.
  • Right-clicking and saving an image from a website often gives you a WebP file even if the page shows a JPG.

Related conversions

More in Image Converters · All converters

Frequently asked questions