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Creativo Labs

Runs in your browser

PNG to WebP Converter

Shrink heavy PNG graphics into WebP with the alpha channel fully intact. Screenshots, UI exports and flat graphics usually lose most of their weight.

Add your images

Transparency is preserved — WebP carries an alpha channel just as PNG does.

Up to 50 files at a time · nothing is uploaded, every image is processed on your own device

Settings

For flat graphics and screenshots the saving is usually large; for photographs saved as PNG it is enormous.

82

80–85 looks identical to the original for most photographs.

Maximum dimensions

Optional. Images already smaller than this are left at their own size.

px
px

About converting PNG to WebP

PNG is lossless, which is exactly what you want for a logo or a screenshot and exactly what makes the files heavy. WebP can carry the same transparency at a fraction of the weight, and this tool does the conversion in your browser with the alpha channel intact.

The savings are lopsided by content. Flat graphics, interface exports and screenshots usually shrink dramatically; a photograph that was mistakenly saved as PNG shrinks enormously, because it should never have been a PNG in the first place.

When this is the right tool

  • Your PNG screenshots or UI exports are the heaviest assets in a page or a document.
  • You need transparency preserved but cannot afford PNG file sizes.
  • You exported a photograph as PNG and want it back to a sensible size.
  • You are choosing between formats and want the comparison first.

How to use it

  1. Drop in your PNGs

    Any number, in one go. Transparent and opaque PNGs are both fine.

  2. Choose the quality

    The slider governs lossy WebP encoding. For flat graphics you can usually go lower than you would dare with a photograph before anything shows.

  3. Convert

    Each PNG is decoded onto a canvas with its alpha channel and re-encoded as WebP. Transparent areas stay transparent.

  4. Check the savings and download

    Every row reports what the file was and what it became. Several results download together as a ZIP.

Formats and limits

Input
PNG, with or without transparency.
Output
WebP with the alpha channel preserved.
Lossless WebP
Not offered — the browser encoder this runs on produces lossy WebP. At a high quality setting the difference is invisible on flat artwork.
Metadata
Not preserved. Re-encoding through a browser canvas drops EXIF, IPTC and XMP — keep your originals if that information matters. What that involves.
Batch, limits and privacy
Up to 50 files per run at 50MB each, all processed with the same settings and returned as one ZIP. No watermark, no daily cap and no sign-up — and no upload either: every file is decoded and re-encoded by your own browser.

Common questions

Is transparency preserved?

Yes. WebP carries a full 8-bit alpha channel exactly as PNG does, so cut-outs, soft shadows and rounded corners come through unchanged.

Why is the saving so large?

PNG is lossless, so it stores every pixel exactly — which is wasteful for anything photographic and merely inefficient for everything else. WebP can spend a controlled amount of loss to get a fraction of the size.

When should I keep the PNG instead?

When the file is a source asset you will edit again, or when it is going somewhere that will not accept WebP. For anything being shipped to a browser, WebP is the better answer.

Guides on this

Longer answers to the questions this tool raises.

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