Transparent WebP converter
Bulk PNG to WebP Converter
Convert PNG images to WebP in a batch. Transparency is preserved by default, with optional background flattening when you need it.
Local browser processing
Drop PNG files here
Convert PNG assets to WebP with transparency preserved unless you choose a background.
Supports PNG. Up to 40 files and 30.0 MB each.
PNG files stay on your device while converting.
How to use
Convert PNG assets to WebP with control.
PNG is often used for graphics, screenshots and transparent assets. WebP can reduce file size while keeping alpha transparency in supported browsers.
PNG-only upload validation.
Transparency preserved unless background flattening is enabled.
Quality and optional resize controls.
Individual and ZIP downloads with safe filenames.
Questions
Bulk PNG to WebP FAQ
Does WebP preserve PNG transparency?
Yes. WebP supports transparency and this tool preserves transparent pixels by default.
When should I flatten transparency?
Only choose a background when you intentionally want transparent pixels replaced with a solid color.
Can I upload JPG files here?
No. This route is for PNG input. Use Bulk JPG to WebP for JPG/JPEG photos.
Are PNG files uploaded to a server?
No. Conversion happens locally in the browser and the original files remain unchanged.