Convert PNG images to WEBP instantly in your browser. The image is re-encoded on your device and never uploaded.
100% private — files are converted in your browser and never uploaded.
Drop a PNG image — it loads locally.
Re-encoded in your browser via the canvas API.
Save the WEBP image.
WebP supports an alpha channel, so it is the one lossy format that can replace a transparent PNG on a website. Files are typically 3–6× smaller than the PNG for photographic content and 20–40% smaller for graphics, encoded here at quality 92.
For UI assets, product cut-outs and logos on the web this is usually the right conversion; the result loads faster and looks the same.
This converter writes lossy WebP. If the PNG is a master file you will keep editing, keep the PNG and export WebP copies for display. If pixel-exactness matters (medical images, technical drawings), stay with PNG.
No. The conversion runs entirely in your browser using JavaScript — your file never leaves your device, so it's safe even for sensitive documents.
Yes — completely free, no signup, no watermark, and no daily limits.
Yes. WebP has a full alpha channel, so transparent areas stay transparent.
No, it is encoded at quality 92 (lossy). For most graphics the difference is invisible; keep the PNG as your master copy.