How to use the png to webp converter
- Drop PNG files onto the upload area or click Choose files.
- Choose lossy with a quality level, or switch on lossless for logos and UI graphics.
- Images convert immediately. Change a setting and click Apply to re-run.
- Preview the result on the checkerboard to confirm transparency survived, then download.
Features
- Transparency is preserved in both lossy and lossless modes
- Quality slider for lossy output
- Batch conversion with zip download
- Checkerboard preview shows transparent regions clearly
Lossy or lossless?
Lossless WebP is a drop-in replacement for PNG: same pixels, same transparency, typically 20–30% smaller. Use it for logos, icons, diagrams and screenshots with text.
Lossy WebP is the big win for PNG photographs and complex screenshots: files often shrink by 80–90% while still supporting transparency. At quality 80–90 the difference is hard to spot even side by side.
Transparency details
WebP stores an alpha channel in both modes. In lossy mode the alpha channel itself is compressed losslessly by default in browsers, so edges stay crisp. Semi-transparent gradients, such as soft shadows, are preserved too.