DevTilt

PNG to WebP Converter

Turn UI assets and screenshots from PNG into WebP using client-side encoding. Alpha is preserved when the browser supports it.

Drag and drop file here, or click to browse

Result

WebP output

Select an image to begin.

How to convert PNG to WebP

  1. Select a PNG file.
  2. Set quality, then convert.
  3. Download the WebP. Alpha is preserved when the browser supports it.
  4. Animated PNG becomes a single static frame.

What is PNG to WebP Converter?

PNG transparency combined with WebP compression produces smaller files than PNG alone — often 50% or more for UI assets and icons. Convert PNG to WebP when you need both alpha channel support and modern compression without running cwebp from the terminal.

Why use DevTilt's PNG to WebP Converter?

  • WebP output preserves PNG alpha transparency
  • Configurable quality for size vs fidelity tradeoff
  • Shows original and converted file sizes
  • Download WebP file instantly

Common use cases

  • Converting PNG icons to WebP for a web app sprite sheet
  • Shrinking PNG UI assets for a mobile app web view
  • Generating WebP versions of PNG logos with transparency
  • Preparing transparent PNG overlays as WebP for faster loading

FAQ

WebP output can retain alpha when encoded via canvas in supporting browsers.
Some browsers cannot encode WebP from canvas. The page states this honestly before you convert.
25 MB file size and 8192 px width or height.
UI screenshots and photos with many colors often compress smaller in WebP. Simple flat icons may already be tiny as PNG — compare both downloads.
Only the first frame decoded to canvas is encoded. Animated PNG and GIF sources become a single static WebP image.