Convert PNG images to WebP with transparency support and smaller size
PNG is the format designers reach for when they need crisp edges and transparency — logos, icons, screenshots, and UI assets all live comfortably as PNGs. The downside is weight: PNG uses lossless compression, which keeps every pixel perfect but produces files that can be several times larger than they need to be for the web. WebP offers the best of both worlds. It supports the same full alpha-channel transparency that makes PNG so useful, but compresses far more efficiently, routinely cutting file size by 25 to 50 percent with no visible difference. This free PNG to WebP converter lets you make that switch in seconds. Upload any PNG, and the tool re-encodes it as WebP directly in your browser, preserving transparent regions exactly so your logos and icons still sit cleanly on any background. The size savings translate straight into faster page loads and better Core Web Vitals scores, which is why Google itself recommends serving images as WebP. Everything happens locally using the Canvas API, so your files are never uploaded, the conversion is instant, and there is no watermark, account, or limit involved. Use the quality slider to push toward a smaller file for background graphics, or keep it high for detailed illustrations where every pixel counts. Every modern browser supports WebP, so the output is safe to use anywhere on today's web.
Upload a PNG file to convert to WebP
PNG files · transparency preserved in WebP
Keeps transparency — WebP's alpha channel preserves transparent areas from your PNG.
Dramatically smaller — WebP is often 25–50% lighter than the equivalent PNG.
Quality control — Fine-tune compression from 10–100% for the perfect size.
Private by design — Images are converted locally and never leave your device.