Convert PNG to WebP
Free online PNG to WebP converter. Drop an image below and convert it instantly — right in your browser, with no upload and no sign-up.
100% private — your image is processed in your browser and never uploaded.
Why convert PNG to WebP?
PNG is a lossless format that keeps every pixel intact and supports a full alpha (transparency) channel. Files are larger than JPG but quality never degrades. WebP is a modern Google format that compresses 25-35% smaller than JPG and PNG at similar quality, while supporting both transparency and animation.
- Shrink file size — WebP typically produces noticeably smaller files than PNG, which speeds up websites and saves bandwidth.
- WebP compression makes the image far smaller than PNG; use the quality slider to balance size against sharpness.
How to convert PNG to WebP
- Upload your PNG file. Drag and drop your PNG image into the box above, or click to browse. Files up to 5 MB are supported.
- Adjust settings (optional). Use the quality slider to choose how much WebP compression to apply.
- Click "Convert to WebP". The conversion runs instantly in your browser. Nothing is sent to a server.
- Download your image. Click the download button to save your new WebP file to your device.
PNG vs WebP
| Property | PNG | WebP |
|---|---|---|
| Compression | Lossless | Lossy |
| Transparency | Yes | Yes |
| Best for | logos, icons, screenshots, graphics with text, and any image that needs a transparent background | fast-loading websites where you want small files without giving up transparency or quality |
Frequently asked questions
Is the PNG to WebP converter free?
Yes. ConvertPix is completely free with no limits on the number of conversions, no watermarks, and no account required.
Are my PNG images uploaded to a server?
No. Conversion happens entirely inside your web browser using your own device. Your images are never uploaded, stored, or seen by anyone.
Will I lose quality converting PNG to WebP?
WebP uses lossy compression. At the default quality the difference is hard to notice; lower the slider for smaller files or raise it for maximum fidelity.
Does WebP support transparency?
Yes, WebP supports a transparency (alpha) channel, so transparent areas are preserved.
What is the largest file I can convert?
You can convert PNG images up to 5 MB. Because processing is done on your device, very large images depend on your device's available memory.