PNG to WebP Converter
PNG to WebP with full transparency support. Lossy or lossless — typically 60–80% smaller than the original PNG.
Best for web developers replacing PNG assets with WebP to cut page weight while keeping transparency.
Drop files here
or click to browse · paste from clipboard
Accepts .PNG · Up to 1,000 files
How it works
Drop your files
Drag and drop, click to browse, or paste from clipboard. Up to 1,000 files at once.
Choose settings
Adjust quality, format, and other options to match your needs.
Click Convert
Everything runs in your browser via WebAssembly. PNG to WebP Converter happens locally — no server involved.
Download
Download files individually or grab all at once as a ZIP.
Frequently asked questions
Yes. Both lossy and lossless WebP support full alpha transparency. A PNG with a transparent background converts to WebP with the same transparency intact. The only edge case is partially-transparent pixels — lossy WebP at low quality settings can introduce slight artifacts around soft alpha edges. Use lossless mode if pixel-perfect transparency is required.
Lossy WebP (default) is typically 60–80% smaller than an equivalent PNG. Lossless WebP is 25–35% smaller than PNG using the same image data. The savings are largest on photos and complex gradients; simpler images with flat colors or sharp edges see smaller gains. ConvertYard shows the exact byte savings per file so you can see the difference immediately.
Use lossless mode for logos, icons, UI screenshots, or any image you plan to edit again. Lossless WebP preserves every pixel exactly and is still 25–35% smaller than PNG. Use lossy mode (the default) for photos, illustrations, and images destined for the web where a small quality trade-off is acceptable in exchange for much smaller file sizes.
WebP is supported in all modern browsers: Chrome, Edge, Firefox, and Safari since version 14 (2020). It covers over 97% of web traffic. Some older design tools, image editors, and CMS platforms still expect PNG. If you're delivering web assets, WebP is the right default. If you need to share files with colleagues using older software, PNG may be safer.
Yes. Drop them all in and ConvertYard converts them entirely in your browser — no uploads, no server. Speed depends on file sizes and your device. Large PNGs (3000px+) take longer than small ones. Download everything as a ZIP when done.