MinifyPic

PNG to WebP

Convert PNGs to WebP for dramatically smaller files that keep their transparency — the single easiest win for making a website load faster.

FreeNo uploadBatch
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How it works

A compact workflow from input to download.

1

Add your PNG files

Drag and drop one or many PNG images onto the drop zone, or click to browse your device. Batch conversion is supported.

2

Pick your quality

Adjust the quality slider if you want a smaller file or a sharper WebP. The default is tuned to look identical to the original at a fraction of the size.

3

Download the WebP

Save each converted image individually, or download everything at once as a ZIP archive. Nothing is uploaded at any point.

Frequently asked questions

Is transparency kept?
Yes. WebP fully supports an alpha channel, so transparent logos, icons and cut-outs convert cleanly and keep their transparency — while being far smaller than the PNG they came from.
How much smaller are WebP files?
Typically 25 to 35 percent smaller than PNG for graphics, and often far more than that for photographic content. The exact saving depends on the image and the quality setting you choose.
Do all browsers support WebP?
Yes. Chrome, Edge, Firefox, Safari and every major mobile browser have supported WebP for years. It is safe to use on a production website today without a fallback for mainstream audiences.
Is WebP lossy or lossless?
It can be either. This tool encodes lossy WebP with a quality slider, which is what gives you the big savings. Lossy WebP at a sensible quality is visually indistinguishable from the PNG for almost all content.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using JavaScript and the Canvas API. Your files never leave your device, are never uploaded, and are never stored — which also means the tool keeps working on files you would not be comfortable sending to a stranger's server.

The easiest performance win on most websites

On the median website, images account for the majority of the bytes downloaded — more than the HTML, CSS, JavaScript and fonts combined. That makes image weight the dominant factor in how fast a page feels, particularly on mobile connections, and page speed feeds directly into both bounce rate and search ranking through Core Web Vitals. Converting PNGs to WebP cuts that dominant cost by roughly a third with no visible change to the page. It requires no redesign, no code rewrite and no compromise on how the site looks. Few optimisations offer that ratio of benefit to effort.

WebP replaces both PNG and JPG

What makes WebP genuinely useful rather than merely smaller is that it collapses a long-standing choice. Historically you picked PNG when you needed transparency or crisp graphics, and JPG when you needed a photograph to be small — and if you needed a small transparent photograph, you were simply out of luck. WebP supports lossy compression, lossless compression, transparency and animation in a single format. You no longer have to decide which limitation to accept: a transparent cut-out photograph can be both alpha-blended and compact. That is why it has become the default output of nearly every modern image pipeline.

Related tools

Continue the workflow with adjacent tools.

HEIC→JPG
Convert iPhone HEIC photos to universal JPG
HEIC→PNG
Convert HEIC photos to lossless PNG images
WebP→JPG
Convert WebP images to widely-supported JPG