Convert PNG to WebP online

Convert PNG images to WebP for free with WebP preselected. Preserve transparency, choose lossy or lossless behavior and process a whole batch.

Convert images without uploading them

  • WebP not available
  • AVIF not available
  • JPEG not available
  • PNG not available
  • JPEG XL not available

Up to 8 images, 10 MB each.

Local processing: files never leave your device.

How to convert PNG to WebP

Add PNG images to the converter above. WebP is preselected as the destination; choose Lighter, Balanced or High quality and keep the original dimensions or set a maximum side. Convert the batch, compare the original PNG size with each WebP result and download files individually or in a ZIP. You can use the tool without creating an account.

Preserve PNG transparency in WebP

Both PNG and WebP support an alpha channel, and Riducly retains transparent pixels when converting between them. Logos, product cut-outs, icons and interface assets can therefore keep transparent edges. Always inspect the result around fine semi-transparent shadows and edges, especially when resizing, because the output is newly rasterized and encoded rather than copied directly.

Lossy or lossless WebP output

Lighter and Balanced create lossy WebP output to reduce size by removing controlled visual information. High quality uses lossless WebP, preserving decoded pixels but sometimes producing a larger file. A WebP is not automatically smaller than every PNG: simple, already optimized graphics may favor PNG, while photographic or complex images often give WebP more room to reduce weight.

Use WebP for modern web delivery

WebP is widely supported by current browsers and can serve both photographic and transparent web assets. Converting heavy PNG exports can reduce page transfer, but browser support is only one part of performance: choose appropriate pixel dimensions, responsive markup and effective caching as well. Keep the original PNG for editing tools or workflows that do not accept WebP.

Batch conversion, metadata and privacy

Convert multiple PNG files with shared settings and download a ZIP when finished. The new WebP files are built from decoded pixels, so embedded PNG metadata is not copied. Desktop defaults to local processing; mobile defaults to a transient server path whose files remain in memory for the request and are not stored. Current limits are shown before processing.

Frequently asked questions

Does PNG to WebP preserve transparency?
Yes. WebP supports alpha transparency and Riducly preserves it during conversion, including partially transparent pixels.
Will WebP always be smaller than PNG?
No. Results depend on image content, dimensions, current PNG optimization and whether WebP is lossy or lossless. Riducly shows the measured result after conversion.
Which WebP quality mode should I choose?
Balanced is a practical default, Lighter favors smaller files and High quality uses lossless WebP when pixel preservation matters more than size.
Does the WebP keep PNG metadata?
No. Output is rebuilt from decoded pixels and transparency, so embedded metadata is not copied. Keep the PNG source when metadata matters.
Can I convert several PNG files at once?
Yes. Guest batch conversion is free within the displayed limits, and a free account offers larger limits and can enable parallel processing.