Convert PNG to WebP

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What happens when you convert PNG to WebP?

Animation-capable destination

Still image output. Animated files use only the first frame; animation is not preserved.

HDR to SDR

HDR is rendered to SDR using exposure and Reinhard tone mapping.

Encoding mode

Lossy VP8 and lossless VP8L are different coding modes. Lossless WebP preserves supported 8-bit samples, not higher-precision source values. Encoding options can also change RGB values under fully transparent pixels. Quality defaults to 80; adjust it in Advanced options. File size depends on the image and encoder.

8-bit destination samples

Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

PNG

Source

PNG

Portable Network Graphics

Compression: LosslessTransparency: YesMetadata: Exif, ICC, Text

Lossless raster images with precise edges and optional transparency. The PNG standard also defines APNG animation.

Explore PNG format →

WebP

Target

WebP

Compression: Lossy & losslessTransparency: YesMetadata: Exif, XMP, ICC

A web image format combining lossy and lossless compression, transparency and animation in a RIFF container.

Explore WebP format →

Is PNG → WebP right for you?

Good choice when

WebP fits your delivery use: Web images & short animations.
Your destination supports the required animation variant.
You need an SDR delivery copy and can review its tone mapping.
You need a transparency-capable destination and will check its supported variant.

Probably not when

You require guaranteed animation transfer from the unavailable converter.
You need the original HDR range for relighting or grading.
You assume format-level alpha support guarantees matching transparent edges.
You need a guaranteed output file size or archival pixel equality. Encoder settings do not guarantee either.

Conversion considerations

PNG and WebP can represent image animation, but their frame structures are not interchangeable. Retaining motion requires sequence decoding, compositing, timing and loop mapping plus an animation-aware encoder. No such transfer is implemented; a still-only pipeline would lose the sequence.
If HDR source content is exported through an SDR representation, it needs a display rendering. Values outside the output range require tone mapping, scaling or clipping; brightness relationships can change. Tone mapping, exposure and colour handling depend on the future engine. Renaming or lossless compression cannot preserve out-of-range values.
The reviewed WebP representation uses 8-bit colour samples. If the source contains higher-precision samples, they must be reduced before encoding, even in a lossless output mode. Rounding, dithering and colour conversion are future engine decisions; lost precision cannot be recovered from this output.

PNG to WebP conversion details

Animation-capable destination: Still image output. Animated files use only the first frame; animation is not preserved.
HDR to SDR: HDR is rendered to SDR using exposure and Reinhard tone mapping.
Transparency representation: The implemented target supports alpha. Display-pixel processing can round translucent samples; archival sample equality is not promised.
Encoding mode: Lossy VP8 and lossless VP8L are different coding modes. Lossless WebP preserves supported 8-bit samples, not higher-precision source values. Encoding options can also change RGB values under fully transparent pixels. Quality defaults to 80; adjust it in Advanced options. File size depends on the image and encoder.
8-bit destination samples: Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Sample precision & colour: Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Metadata & colour: Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Compression: PNG: Lossless → WebP: Lossy & lossless PNG: PNG compression is lossless. Palette conversion, resizing or reducing bit depth before encoding can still discard information. Animation is the APNG extension included in the third edition. WebP: Lossy VP8 and lossless VP8L are different coding modes. Lossless WebP preserves supported 8-bit samples, not higher-precision source values. Encoding options can also change RGB values under fully transparent pixels.
Transparency: Transparency is replaced with white by default. Change the background in Advanced options.
Animation: Still image output. Animated files use only the first frame; animation is not preserved.
Colour depth: PNG: 1–16 bits/sample → WebP: 8 bits/sample
HDR: PNG: Third-edition signalling
Dimensions: Rendered image dimensions are retained within the converter limits; this tool does not offer resizing. Orientation handling depends on the source decoder.
Metadata: Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

Common questions

Can the animation be transferred between formats?

Still image output. Animated files use only the first frame; animation is not preserved.

How will HDR brightness be mapped?

HDR is rendered to SDR using exposure and Reinhard tone mapping.

Which compression mode will WebP use?

Are bit depth and colour values guaranteed to match?

Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

Will metadata and colour profiles be retained?

Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.

Convert PNG to WebP

Drop a PNG file here

What happens when you convert PNG to WebP?

Animation-capable destination

HDR to SDR

Encoding mode

8-bit destination samples

PNG

WebP

Is PNG → WebP right for you?

Good choice when

Probably not when

PNG to WebP conversion details

Common questions

Related conversions

Other targets for PNG

Other sources for WebP