Convert PNG to WebP
Convert PNG images to WebP for significantly smaller file sizes. Free and instant.
Drop images here or click to upload
PNG, JPG, WebP — up to 50MB each
Convert PNG to WebP for 25-35% smaller files
No file size limits
Adjustable output quality
Batch convert multiple files
Resize while converting
100% private — no server uploads
Frequently Asked Questions
Why convert PNG to WebP?
WebP files are typically 25-35% smaller than PNG at equivalent quality, and WebP supports both lossless compression and transparency — the best of both worlds.
Does WebP support transparency like PNG?
Yes! WebP supports alpha channel transparency just like PNG, but with significantly smaller file sizes.
Is WebP supported by all browsers?
Yes, all modern browsers (Chrome, Firefox, Safari, Edge) support WebP. Only very outdated browsers lack support.
Is the conversion free?
Yes, completely free with no limits. Compresso runs entirely in your browser.
Are my images uploaded anywhere?
No. All processing happens locally on your device. Your images never leave your browser.
Can I convert multiple PNGs to WebP at once?
Yes! Upload multiple PNG files and convert them all to WebP simultaneously. Download individually or as a ZIP.