PNG to WebP Converter — Core Format
FREE IMAGE CONVERTER
PNG to WebP Converter
Convert PNG images to modern WebP format while preserving transparent backgrounds. Adjust compression quality, compare results, and download converted files individually or as a ZIP.
Select still PNG images
Drag and drop files here, or choose them from your device.
Up to 20 still PNG images per batch.
Up to 30 MB each, processed locally.
Conversion runs locally in this browser tab. Your image files remain private and are never uploaded to any server.
Ready. Select still PNG images to begin.
How to convert PNG to WebP
- Select your PNG images: Drag up to 20 still PNG files (up to 30 MB each) into the drop zone, or browse from your device.
- Adjust WebP quality: Use the quality slider to balance visual fidelity and file size reduction. Transparent backgrounds are preserved automatically.
- Inspect before saving: Use the “Compare” button on any row to preview the converted WebP alongside the original PNG.
- Download results: Save images individually or select “Create ZIP” to download the complete batch in one archive.
Understanding PNG to WebP conversion
PNG is an uncompressed or losslessly compressed raster format standard for graphics requiring pixel-sharp detail and alpha transparency. WebP provides modern lossy compression while maintaining alpha transparency support, typically reducing file sizes substantially for web delivery.
| Feature | PNG | WebP (Canvas Output) |
|---|---|---|
| Compression type | Lossless (Deflate) | Browser-native lossy WebP compression |
| Alpha transparency | Supported (8-bit alpha) | Supported natively with transparent pixels intact |
| Browser decoding | Universal across all browsers | Modern browsers (Chrome, Edge, Firefox, Safari 14+) |
| Metadata retention | Original EXIF, ICC profiles | Newly encoded file; source metadata is not transferred |
Frequently Asked Questions
Will converting PNG to WebP remove transparent backgrounds?
No. WebP natively supports alpha transparency channels. Transparent areas in your source PNG remain transparent in the exported WebP image.
Does this tool support Animated PNG (APNG) files?
No. This converter processes still PNG images. Animated PNG files contain multi-frame sequences (acTL chunks) that are rejected with an informative notice to avoid frame flattening.
Are original color profiles and metadata preserved?
The conversion renders pixels via HTML5 Canvas to encode the new WebP file. Color spaces and original metadata (such as EXIF or custom chunks) are not retained in the output file.