PNG to WebP Converter
Shrink your PNG files by up to 50% by converting to WebP — with full transparency support. All processing stays in your browser.
Drop your images here
JPG · PNG · WebP · SVG · up to 50 MB each
Why convert PNG to WebP?
PNG uses lossless compression — every pixel is preserved exactly. That makes it ideal for logos, icons, and screenshots, but it produces large files. A typical logo PNG might be 200–500 KB. The same image as a WebP at quality 85 is often 50–120 KB — a reduction of 50–75% with virtually no visible difference at screen resolution.
Critically, WebP supports full alpha-channel transparency, so transparent PNGs convert without any loss of the transparent background. For web use, WebP is strictly better than PNG in almost every case — smaller file, same transparency support, and comparable quality.
Common use cases for PNG to WebP
- Website logos and icons. PNG logos with transparent backgrounds are a perfect WebP conversion target. The transparency is preserved and the file size drops dramatically — improving Lighthouse scores.
- UI screenshots and product images. Screenshots taken as PNG (often large because of the lossless format) compress well to WebP without the blocky JPEG artefacts you would get from converting to JPEG.
- Game and app assets. Mobile and web apps with sprite sheets or UI assets as PNG can reduce asset bundle size significantly by converting to WebP — directly improving load times on slower mobile connections.
- Shopify and e-commerce product images. Product images with removed backgrounds (PNG with transparency) are widely used in e-commerce. Converting to WebP reduces page weight and speeds up product pages.
- WordPress media library. WordPress 5.8+ supports WebP uploads. Replacing large PNG assets in your media library with WebP equivalents can shave megabytes off page weight across your entire site.
PNG vs WebP — format comparison
| Feature | PNG | WebP |
|---|---|---|
| Compression | Lossless only | Lossy + lossless |
| Transparency | ✓ Supported | ✓ Supported |
| File size | Large (lossless) | 50–75% smaller than PNG |
| Quality loss | None (lossless) | Minimal at quality 80+ |
| Browser support | Universal | 97%+ coverage |
How the conversion works
Your PNG is decoded by the browser and drawn to an HTML Canvas element. The canvas is then exported using the browser's built-in WebP encoder. The alpha channel (transparency) is preserved throughout this process. All processing happens locally — your file never leaves your browser.
Frequently asked questions
Does WebP support transparency like PNG?
Yes. WebP supports full alpha-channel transparency, just like PNG. Converting a PNG with a transparent background to WebP preserves the transparency completely — with a significantly smaller file size.
How much smaller is WebP compared to PNG?
WebP (lossy) is typically 50–75% smaller than PNG for the same image. Even WebP lossless is around 26% smaller than PNG. This makes PNG-to-WebP one of the most impactful file size reductions available for web images.
Should I use lossy or lossless WebP for my PNG?
For photos or images where minor quality loss is acceptable, lossy WebP at quality 80 gives the best size reduction. For logos, icons, or images with sharp edges where quality must be pixel-perfect, use a higher quality setting (90+) to minimise compression artefacts on edges.
Is my image uploaded to a server?
No. Everything runs locally in your browser using the Canvas API. Your file never leaves your device.
Can I convert multiple PNGs to WebP at once?
Yes. Drop up to 5 PNG files at once on the Free tier, or unlimited with Pro.