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PixMino

Convert PNG to WebP

Make PNG graphics and photos lighter for the web. WebP keeps transparent backgrounds, so logos and cut-outs stay clean.

  • 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 PNG to WebP

  1. 1

    Add the PNG

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

  2. 2

    Choose quality

    WebP is already selected. Use Best quality for graphics with text, Balanced for photos.

  3. 3

    Convert and download

    Select Optimize image, check the edges with the slider and download.

Transparency carries over

Unlike JPG, WebP supports transparency, so a logo or product cut-out converted from PNG keeps its transparent background. No background colour is needed.

How much smaller it gets

The saving depends on the content. PNG photos often shrink to a fraction of their size as WebP. Flat graphics and screenshots also shrink, but by less, because PNG already stores them efficiently.

PixMino shows the exact size of the result next to the original, so you can decide whether the switch is worth it.

Keeping sharp edges sharp

Lossy WebP can soften thin lines and small text. For screenshots and interface graphics, choose Best quality and zoom in with the comparison slider before downloading. If edges still matter more than size, keep the PNG.

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

Will my transparent background be kept?

Yes. WebP supports transparency, so transparent areas stay transparent.

Is the WebP lossless?

PixMino creates lossy WebP, which gives much smaller files. If you need an exact pixel copy, keep the PNG.

Can I use WebP for my website logo?

Yes. All current major browsers display WebP, including transparent ones.