ConvertWarp

PNG to WebP

Make a WebP from a PNG. Transparency is kept.

About this tool

PNG screenshots and UI assets are often huge because PNG is lossless. WebP can keep a transparent background while cutting a lot of weight, which is why this pair exists separately from PNG to JPG.

JPEG would flatten alpha. If the PNG is a photograph with no transparency, JPG to WebP or Compress image may still be smaller. Use this page when the checkerboard background matters.

The PNG is decoded on a canvas that preserves alpha, then encoded as WebP in the browser. 50 MB and 32 megapixels apply. Animated PNG is not turned into animated WebP.

How to convert PNG to WebP

  1. Pick a PNG with or without transparency. Nothing is posted.
  2. Convert. Transparency is kept when the encoder supports it.
  3. Download the WebP.

50 MB / 32 MP. Browser WebP encoders vary slightly on lossless vs lossy. One still PNG at a time.

FAQ

Does PNG to WebP send the screenshot somewhere?
No. The WebP is built in this tab.
Does transparency survive?
Yes, that is the point of this pair. PNG to JPG would have destroyed it.
Why is my WebP still large?
Busy lossless graphics do not shrink as much as photos. Lower quality if you can accept some smear on edges.
Can I convert a JPEG here?
No. Use JPG to WebP. This page sniffs PNG magic bytes.
Will email clients show it?
Many still will not. Keep a PNG or JPEG fallback for mail; use WebP on the web.

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