Image Tools

PNG to WebP

Converts one PNG image to WebP in your browser using the canvas encoder at a fixed quality of 0.92. WebP can store transparency, so a PNG with a transparent background keeps it, and the file is often smaller.

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Add Files
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Process
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Download
Processed in your browser — your file is not uploaded.

Drop your files here

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Up to 1 files

PNG → WebP conversion:

  • WebP output (lossy at a fixed quality)
  • Transparency preserved
  • Modern web format

How to Use

  1. 1Drop a .png file onto the upload area, or click it to choose one.
  2. 2Only one PNG can be converted per run.
  3. 3Click 'Convert to WebP' and wait for 'Converting PNG to WebP...' to finish.
  4. 4Download the WebP file. If your browser cannot encode WebP, an error is shown.

Features

  • Accepts .png files only, one file per conversion
  • Exports WebP at a fixed quality of 0.92; there is no quality slider or lossless switch
  • WebP supports an alpha channel, so transparent PNG areas are kept
  • Keeps the original pixel dimensions
  • Shows a clear error if the browser returns a format other than WebP
  • Runs in your browser using the canvas API; the file is not uploaded for the conversion

FAQ

Does the WebP keep my PNG's transparent background?

Yes, WebP supports transparency and this tool does not fill the background, so transparent areas stay transparent when your browser encodes WebP correctly.

Is the WebP lossless like the PNG?

Not necessarily. The tool asks the browser for WebP at quality 0.92, which is a lossy setting, so tiny differences from the PNG are possible. If you need exact pixels, keep the PNG.

Why is the WebP sometimes not much smaller than the PNG?

Savings vary. Photographic PNGs usually shrink a lot, while small flat-colour graphics may already be tiny as PNG and gain little. Compare sizes before swapping files.

The tool says my browser cannot encode WebP. What now?

Canvas WebP encoding works in Chromium browsers and Firefox but may not in Safari. The tool detects a mismatched output type and stops with an error instead of giving you a wrongly named file. Use a different browser.

Related Tools

WebP to PNG

Convert a single WebP image to a lossless PNG in your browser, keeping transparency.

Image Compressor

Reduce an image's file size with a quality slider, output format choice and optional max dimensions.

PNG to JPG

Convert a single PNG to a smaller JPG in your browser; transparent areas become white.