ConvertPicturesConvertConvert a photo

PNG to WebP, lossless where it should be

Lighter PNGs, same sharp look

Turn PNG into WebP — crisp for logos and screenshots, smaller for photos.

or drop them here · paste works too

FreeNo sign-upPhotos stay on your device

A screenshot of a dashboard with a bar chart and a tablePNG
A screenshot of a dashboard with a bar chart and a tableWEBP
Write as

This browser

Tested in this tab a moment ago: what it can open, and what its own encoders can write. Converting never goes past this list.

Formats this browser opened and wrote when tested just now
FormatOpensWrites
JPEGcheckingchecking
PNGcheckingchecking
WebPcheckingchecking
GIFchecking—
AVIFcheckingchecking
BMPchecking—
ICOchecking—
TIFFchecking—
SVGchecking—
HEICchecking—

Drop PNG files here — or any picture

One file or a whole folder. Each one is converted on its own terms.

Paste works too, or drop a whole folder.

No picture openzoom 100% on this device

Drop PNGs. A screenshot, logo or diagram is written as lossless WebP — every pixel kept — and a photograph saved as PNG is written as lossy WebP searched to matched quality. Transparency stays in both.

Two encoders, chosen per file

WebP has a lossless mode and a lossy mode, and the right one depends on the picture. Flat colour with hard edges — a screenshot, a chart, a logo — is what lossless WebP is built for: usually smaller than the PNG, with no pixel changed. A photograph that happens to be stored as PNG is better served by lossy WebP, searched until it measures visually identical to the PNG (0.990 at 512 px).

A browser's canvas can only write lossy WebP, so the lossless files are written by this page's own encoder, in this tab. Each one is decoded again and compared with the source before it is offered. The Quality panel's WebP encoder setting forces one mode for every file if you prefer.

Transparency

Both WebP modes hold an alpha channel, so a logo on a transparent background stays transparent. Every WebP that should carry transparency is checked for it before download.

Questions about PNG to WebP

Is WebP smaller than PNG?
For drawn pictures, lossless WebP is usually smaller than the PNG with every pixel identical; the page shows the real byte counts for your file. For a photograph stored as PNG, lossy WebP is far smaller.
Does PNG to WebP keep transparency?
Yes. Lossless and lossy WebP both hold alpha, and each output is checked for it when the PNG had transparent areas.
How does the page decide lossless or lossy?
It measures the picture: few distinct colours and many hard edges mean a drawn picture, which is written lossless. Anything else is written lossy at matched quality. You can force either mode in the Quality panel.
Will the lossless WebP be pixel-identical to my PNG?
Yes for every pixel the browser decodes from the PNG. Fully transparent pixels can lose their hidden colour values, which nothing displays.
Are my files uploaded?
Nothing is uploaded: the picture is read, converted and checked in this browser tab.

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