Is the PNG to WebP converter free?

Yes — completely free, unlimited, and no sign-up.

Do my files get uploaded?

No. Conversion happens locally in your browser; your files never leave your device.

Will I lose quality converting PNG to WebP?

WebP is a lossy format like JPG, so there is some trade-off, but it's more efficient — see the worked examples above, where WebP came out smaller than JPG at the same 80% quality on both test images.

Does WebP support transparency?

Yes, WebP preserves transparent backgrounds.

PNG to WebP Converter

Convert PNG images to WebP entirely in your browser — no upload, no sign-up. WebP gives smaller files than JPG or PNG at similar quality and supports transparency, though some older software doesn't read it.

Your files never leave your device.

Output formatQuality: 70%Max width (px)Max height (px)

Drop images here, or click to choose

JPG, PNG, WebP · batch supported · nothing is uploaded

No upload — and you can prove it

Everything runs on your device. Open your browser's Network tab while you work — you'll see no file leave your computer. You can even disconnect from the internet after this page loads and the tool keeps working.

How to convert PNG to WebP

Drag & drop your PNG file(s) below (or click to choose). You can convert several at once.
The output format is already set to WebP — no need to change it.
Quality only affects JPG output, so this step is skipped for WebP.
Download the converted WebP file, or all of them as a ZIP.

When to convert PNG to WebP

PNG-to-WebP conversion is the best choice when you want PNG's transparency and sharp edges but a fraction of the file size — WebP supports an alpha channel just like PNG, so logos, icons, and UI graphics keep transparent backgrounds while shrinking dramatically. It's the conversion we'd recommend first for a modern website: smaller pages, same visual fidelity, and every current browser supports WebP.

Real file-size examples

We ran two real images through this exact conversion and measured the result — a photograph and a flat, UI-style graphic (icons/screenshots behave differently from photos, so we show both):

1920×1080 photo (1920×1080)

5.03 MB → 333.4 KB (-94%)

1600×900 flat/UI graphic (1600×900)

81.9 KB → 27.1 KB (-67%)

Frequently asked questions

Is the PNG to WebP converter free?: Yes — completely free, unlimited, and no sign-up.
Do my files get uploaded?: No. Conversion happens locally in your browser; your files never leave your device.
Will I lose quality converting PNG to WebP?: WebP is a lossy format like JPG, so there is some trade-off, but it's more efficient — see the worked examples above, where WebP came out smaller than JPG at the same 80% quality on both test images.
Does WebP support transparency?: Yes, WebP preserves transparent backgrounds.

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