PNG to WebP Converter
Convert PNG to WebP free — no upload, no signup
To convert PNG to WebP, drop your PNG images into the box below, click Convert, then Download. Fylo does the work inside your browser, so nothing is uploaded and there's no signup or watermark. WebP keeps PNG transparency while typically cutting file size by a quarter or more.
Drop images here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
Higher keeps more detail; lower makes smaller files.
Advanced
Pixel-perfect output for graphics, screenshots and text.
Leave empty to keep the original size.
How to convert PNG to WebP
Add your PNG files
Drag and drop PNG files into the box, tap to choose them, or paste with Ctrl+V. You can add many at once.
Check the quality
Leave WebP quality at the default 80 or adjust the slider — higher keeps more detail, lower makes smaller files.
Convert and download
Click Convert, then download each WebP or get them all in one ZIP.
Why convert PNG to WebP?
WebP is the modern replacement for PNG on the web: it supports full alpha transparency like PNG but compresses far better. Converting logos, product cut-outs, UI graphics and screenshots to WebP speeds up pages without losing their transparent backgrounds.
Does converting PNG to WebP affect quality or size?
Fylo encodes lossy WebP at quality 80 by default, which keeps transparency and makes photographic PNGs dramatically smaller. For pixel-perfect graphics, switch on Lossless in Advanced — Google measured lossless WebP files about 26% smaller than PNG on average.
What's the difference between PNG and WebP?
PNG is a lossless format with full transparency. It keeps every pixel exact, which makes it ideal for screenshots, logos and graphics — but photos saved as PNG are large.
WebP is Google's web image format. It supports lossy and lossless compression, transparency and animation, and is typically 25–35% smaller than JPG at similar quality.
Learn more: PNG format guide · WebP format guide
| Property | PNG | WebP |
|---|---|---|
| Compression | Lossless (DEFLATE) | Lossy (VP8) or lossless (VP8L) |
| Transparency | Yes — full 8-bit alpha | Yes — full 8-bit alpha |
| Animation | APNG only (rarely used) | Yes |
| Colour depth | Up to 48-bit + alpha | 24-bit + alpha |
| Typical size, 12 MP photo | ≈ 15–25 MB | ≈ 1.5–3 MB |
| Support | Universal — every browser and editor | All modern browsers (Safari 14+, 2020) |
| Best for | Screenshots, logos, graphics with text, editing | Website images, e-commerce, blogs |
| Introduced | 1996 | 2010 |
Frequently asked questions
Does WebP support transparency like PNG?
Yes. WebP has a full 8-bit alpha channel in both lossy and lossless modes, so soft shadows and anti-aliased edges are preserved.
Should I use lossy or lossless WebP for PNG images?
Use lossy (the default) for photos and complex artwork. Use lossless for icons, screenshots with text and pixel art where every pixel must stay exact.
Are my PNG files uploaded to a server?
No. Fylo converts PNG to WebP entirely inside your browser using a background Web Worker, so your files never leave your device. That's also why it's fast — there's no upload or download wait.
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