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PixMino

Convert JPG to WebP

Turn JPG photos into WebP files that are usually noticeably smaller at the same visual quality, which helps web pages load faster.

  • No signup
  • Your images stay on your device
  • Free, no watermark
Mode

Drop an image here

or

Choosing several images switches to batch mode.

  • JPG
  • PNG
  • WebP
  • AVIF
  • HEIC
Up to 50 MB

How to convert JPG to WebP

  1. 1

    Add the JPG

    Drop the photo onto the page or choose it from your device.

  2. 2

    Pick size and quality

    WebP is already selected. Balanced suits most websites; add dimensions or a limit if you need them.

  3. 3

    Convert and compare

    Select Optimize image, compare with the slider, and download the WebP.

Why WebP for websites

WebP was designed for the web. For photos it typically produces files a quarter to a third smaller than JPG at similar quality, so pages load faster and use less data. Every current major browser displays WebP.

PixMino shows the real before and after sizes, so you can see the saving for your own image rather than a general promise.

Where WebP may not work

Some older desktop software, office documents and upload forms still expect JPG or PNG. Keep the original JPG for those, or convert back with WebP to JPG if needed.

Resize for the space it fills

A 4000 px wide photo shown in a 1200 px column wastes most of its pixels. Set the width to the largest size the image is displayed at, about twice that for sharp screens, and the WebP becomes much smaller still.

Supported formats

PixMino opens five formats and saves four. HEIC photos from iPhones are saved as JPG or PNG.

JPG

Best for
Photos and images with soft gradients.
Transparency
Not supported.
Compression
Lossy, with adjustable quality.

PNG

Best for
Screenshots, logos and graphics with sharp edges or text.
Transparency
Supported.
Compression
Lossless. Can use fewer colours where the change is invisible.

WebP

Best for
Websites that need small files.
Transparency
Supported.
Compression
Lossy, usually smaller than JPG at similar quality.

AVIF

Best for
The smallest photo files for modern websites.
Transparency
Supported.
Compression
Lossy, often smaller than WebP. Slower to create.

HEIC

Best for
Photos taken on iPhone and iPad. Opened by PixMino, saved as JPG or PNG.
Transparency
Not used by camera photos.
Compression
Lossy and very efficient, but poorly supported outside Apple devices.

AVIF and HEIC use codecs downloaded the first time you need them; after that they work offline. Animated images are converted as a single frame.

Questions

Does converting JPG to WebP lose quality?

WebP is compressed again, so a little detail can change. At Balanced or Best quality the difference is very hard to see; use the slider to check.

Is WebP supported everywhere?

All current major browsers show WebP. Some older apps and forms don't accept it; keep a JPG for those.

Can I convert many JPGs to WebP at once?

Yes. Switch to Batch, choose WebP as the format and download all results as a ZIP.