To convert PNG to WebP, open the PNG to WebP Converter, drop in your image, and download the result. WebP files are typically 25 to 35 percent smaller than PNG at similar quality, so the swap makes pages load faster without a visible drop in sharpness. Everything runs in your browser, so your images never leave your device.
Why convert PNG to WebP
PNG is a great format, but it was not built for the modern web. WebP was, and it gives you a few clear wins:
- Smaller files: WebP usually shrinks images by 25 to 35 percent versus PNG at comparable quality, which means faster pages and lighter bandwidth bills.
- Transparency kept: WebP supports full alpha transparency, so logos, icons, and cutouts stay clean with no white box behind them.
- Lossy and lossless: WebP does both. Use lossless when you need pixel-perfect output, or lossy when smaller size matters more than absolute fidelity.
Faster images are also good for SEO. Page speed feeds into Core Web Vitals, and large PNGs are one of the most common reasons a page feels sluggish.
Browser support
WebP works in every current browser, including Chrome, Firefox, Safari, and Edge. Support has been universal for years, so you can serve WebP to virtually all visitors without a fallback. If you still need to support a very old browser, you can keep a PNG copy alongside the WebP, but for most sites that is no longer worth the trouble.
Convert PNG to WebP in three steps
- Open the PNG to WebP Converter and drag your PNG file onto the page, or click to select it.
- Pick your quality setting. Higher quality keeps more detail at a larger size, lower quality trades some detail for an even smaller file.
- Download the WebP image and use it on your site or app.
The conversion happens entirely in your browser using the native canvas API, so nothing is uploaded to a server. This keeps private screenshots and client assets on your machine and makes the conversion instant even for large files.
Quality tradeoffs and when to keep PNG
For photos and detailed graphics, lossy WebP at around 80 percent quality usually looks identical to the original while cutting the file size sharply. For flat graphics, logos, or anything with crisp edges and text, lossless WebP keeps everything sharp and still beats PNG on size.
When should you keep PNG? Rarely. The main cases are a legacy system or build pipeline that does not accept WebP, or a workflow that needs PNG as an editable source file. For images you actually ship to the web, WebP is the better default. When in doubt, convert a test image with the PNG to WebP Converter, compare both side by side, and trust your eyes.
Related tools
- Need other formats too? Use the Image Converter for JPG, WebP, PNG, and more.
- Already on WebP and want it smaller? Try the Image Compressor.
- Working with vector art? Rasterize it with the SVG to PNG Converter.
Convert once, ship lighter pages, and let your images load fast.