PNG to WebP converter
Convert PNG to WebP with transparency preserved. Smaller files, faster websites — all locally in your browser.
100% Local Processing Files never leave your device
How to use
- 1 Drag and drop your PNG file(s) onto the upload area.
- 2 Output format is pre-set to WebP. Adjust quality with the slider if needed.
- 3 Transparency (alpha channel) is automatically preserved.
- 4 Download individually or as a ZIP for batch conversions.
Use cases
- Reduce PNG file size for web performance (Lighthouse / Core Web Vitals)
- Batch-convert logos and icons with transparent backgrounds
- Optimize product images for e-commerce platforms
- Shrink PNG screenshots for email or messaging
Supported input formats
Output formats
Supported platforms
- Desktop: Chrome, Firefox, Edge, Safari
- Mobile: iOS Safari 16.4+, Android Chrome 100+
- Works offline once the page is loaded
Limitations
- WebP lossy mode may slightly reduce quality at low settings — use quality 80+ for near-lossless
- Animated PNG (APNG) is not currently supported as input
- Very large PNGs (50MP+) may require significant memory
Frequently asked questions
Does PNG to WebP keep transparency?
Yes. The converter preserves the alpha channel, so transparent PNGs stay transparent in WebP.
Is WebP smaller than PNG?
Usually yes — WebP typically produces much smaller files than PNG for photos, while keeping transparency for graphics.
Can I convert multiple PNGs at once?
Yes. Drag in as many PNGs as you like, convert them all, and download them together as a ZIP.
What quality should I use?
For most images, quality 75-80 provides an excellent balance of file size and visual quality. For screenshots with text, use 85+.