PNG to WebP Converter – Smaller, Keeps Transparency
Convert PNG images to WebP to cut file size while keeping transparency. WebP supports an alpha channel, so logos and graphics stay crisp and transparent but weigh much less. Converted on your device, never uploaded.
- 100% free
- Private & safe
- Runs in your browser
Your files are processed securely in your browser and are not uploaded to our servers.
Popular image conversions
Why use PNG to WebP?
PNG to WebP lets you edit and optimise images in seconds, right in your browser — no bulky software to install and nothing uploaded to a server.
- 100% private: files are processed in your browser and never uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- PNG → WebP
- Add your PNG files.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
What it can do — and its limits
- Converts PNG to WebP with transparency preserved.
- Adjustable quality to balance sharpness against file size.
- Batch conversion, fully in the browser.
How to use PNG to WebP
- Add your PNG files.
- Pick a quality level (lossy WebP is much smaller; higher keeps more detail).
- Convert and download each WebP or all as a ZIP.
Examples
- Shrinking a transparent logo for a faster-loading header.
- Reducing the weight of PNG UI graphics on a site.
Supported formats & limits
- PNG → WebP
Limitations
- Lossy WebP can soften sharp edges at low quality.
- Very old browsers may not support WebP.
Common problems & fixes
Edges look soft after converting.
Raise the quality slider — flat graphics need higher quality than photos.
Old browser can't display WebP.
Keep the PNG as a fallback for legacy browsers.
Sources & references
Last verified August 2026.
Frequently asked questions
Does WebP keep PNG transparency?
Yes — WebP has an alpha channel, so transparent areas of your PNG are preserved.
Will my graphic stay sharp?
At high quality, yes. For flat graphics and text, keep the quality high to avoid soft edges.
Is my file uploaded?
No — everything happens locally in your browser.