PNG zu WebP — Freies Online-Werkzeug
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By the AllFileBox Team · Last updated: 2026-06-27
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PNG to WebP is a free online tool that converts PNG images into the modern WebP format in your browser, keeping transparency while producing files that are roughly 26 percent smaller than PNG.
Why WebP beats PNG on size
WebP supports lossless compression like PNG but encodes it more efficiently, so lossless WebP files are around 26 percent smaller than the same image as PNG, according to Google. WebP also keeps the alpha channel, so transparency is preserved. For web graphics, icons, and screenshots, that size saving speeds up pages without sacrificing the crisp edges PNG is known for.
Transparency is kept
Unlike converting to JPG, moving from PNG to WebP preserves transparency, so a logo or icon with a clear background stays clear. This makes WebP a true replacement for PNG on the web, combining smaller files with the transparency that overlays and layered designs depend on. You get PNG-quality graphics at a lower bandwidth cost.
Lossless or lossy
WebP can save your PNG losslessly for pixel-perfect graphics, or in lossy mode for even smaller files when a little softening is acceptable. Lossless is the right choice for text, logos, and line art, while lossy can shrink complex images further. Having both modes in one format is part of why WebP is so versatile.
Private and local
PNG to WebP runs in your browser. The image is drawn to a canvas and encoded as WebP locally, then returned as a download. Nothing is uploaded or stored, so your graphics stay on your device. The conversion is near-instant for typical images.
Wie man es verwendet PNG zu WebP
- Open the PNG to WebP tool and add your image.
- Choose lossless or a quality level if offered.
- Let the tool encode it as WebP in your browser.
- Compare the smaller file size in the result.
- Download the WebP image.
Shrink web graphics
Shrink web graphics
Convert PNG icons and illustrations to WebP so pages load faster while keeping transparency intact.
Optimize a logo
Turn a transparent PNG logo into a smaller WebP that still sits cleanly over any background.
Reduce a screenshot
Save a PNG screenshot as lossless WebP to keep text sharp at a smaller file size.
| Aspect | PNG | WebP |
|---|---|---|
| Lossless size | Baseline | About 26% smaller |
| Transparency | Yes | Yes |
| Modes | Lossless only | Lossless or lossy |
Zugehörige Werkzeuge
Haupteigenschaften PNG zu WebP
Ihre Dateien bleiben privat
Die Bearbeitung erfolgt direkt im Browser mit WebAssembly. Ihre Datei wird nicht an unsere Server gesendet. Wir haben keinen Zugriff auf Ihre Dateien – garantiert.