PNG to WebP — Online Image Converter
Convert PNG to WebP online. Private, client-side — no uploadrequired. Fast batch converter.
About PNG to WebP
PNG stores each pixel exactly with full alpha support, so screenshots and graphics stay sharp at the cost of large files. WebP re-encodes the same image with tighter compression, in lossy or lossless mode, at a fraction of the bytes. Transparency carries over because both formats keep an alpha channel. Stills have no frames, so animation settings do not apply. Set the quality slider near 85 for photos, or pick lossless for graphics with text, then compare the output size before sharing.
Why convert PNG to WebP?
- Flexible size with WebP lossless or lossy compression - lossy for smaller files, lossless for exact quality.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
PNG vs WebP
| Animation | No | Yes |
|---|---|---|
| Transparency | Yes | Yes |
| Compression | lossless | lossless or lossy |
| Typical use | PNG stores lossless images with transparency support. | WebP stores still and animated images with better compression. |
When not to convert PNG to WebP
- Skip WebP for archival masters: lossy compression discards detail, so keep the PNG original.
- No motion to preserve: PNG is a still, so pick WebP for size or compatibility rather than animation.
Limits
Starting point: PNG - Lossless graphics with transparency support. Lossless quality means larger files than JPEG. Use the quality slider to balance size and fidelity. Set the quality slider near 80-90 for WebP photos from PNG, and keep dimensions matched to the source.
How conversion works
Conversion runs entirely in your browser with the WASM image engine. Files never leave your device.