Convert PNG to WebP in your browser — free, no signup. WebP keeps transparency and cuts file size up to 80% for faster websites.
Drop your image here
or click to browse
Supports: JPG, PNG, WebP, AVIF, GIF, BMP, SVG, up to 10MB each
Your files are 100% private. Processed in your browser — never uploaded.
Need help? Check our guide
Lower quality = smaller size
Target file size, watermark & server-side metadata control are available on Pro.
Pro Tip
WebP gives you the best quality at smaller file sizes. Perfect for websites and faster loading.
Quick answer
BatchSet's PNG to WebP converter compresses PNG images into WebP for free in your browser — usually much smaller, especially for photographic PNGs, while keeping transparency. Smaller images load faster, which improves page speed and Core Web Vitals.
Three quick steps — free, private, right in your browser.
Drag in a .png file or click to browse — it stays on your device.
WebP supports lossy and near-lossless; higher = better, larger.
See the exact size saved per file, with transparency intact.
| Aspect | PNG (source) | WebP (result) |
|---|---|---|
| File size | Large | Usually much smaller |
| Transparency | Supported | Supported |
| Compression | Lossless | Lossy or lossless |
| Page speed | Slower | Faster |
| Browser support | Universal | All modern browsers |
It depends on the image. Photographic or detailed PNGs usually shrink the most with lossy WebP; flat logos and simple graphics save less. Google's own figures put lossless WebP about 26% smaller than PNG. The tool shows the before/after size for every file, so you see your real savings — with transparency kept.
Yes. WebP supports an alpha channel, so transparent PNG areas remain transparent in the WebP.
You decide with the quality slider. At high settings WebP is visually near-lossless, so most images look identical at a fraction of the size.
Yes — every modern browser (Chrome, Edge, Firefox, Safari) displays WebP, which is why it's the recommended format for the web.
No. Conversion happens entirely in your browser, so your file never leaves your device.
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