PNG to WebP Converter — Free & Online
Compress PNG assets to WebP for production websites
- Files never leave your device
- No signup · Free in-browser conversion
Why Convert PNG to WebP?
Large PNG UI assets slow down pages. WebP lossless or lossy modes cut bytes dramatically.
Ideal for logos, illustrations, and UI graphics when you control delivery format.
Run conversions privately before deploy—no CI secrets needed for a quick check.
How to convert (PNG → WEBP) in 3 steps
- Drop PNG files into the tool.
- Generate WebP locally.
- Download and replace assets in your project.
Privacy: Files never leave your browser
PNG stays on your machine during encode.
PNG to WebP for frontend performance
Replace bloated PNGs in your /public folder with WebP exports from this tool, then use <picture> elements for resilient delivery.
Shrink PNG UI assets for production
Large PNG icons and illustrations inflate page weight. WebP with alpha support can cut bytes dramatically for marketing sites and SaaS dashboards.
Run PNG to WebP in the browser before commit—no ImageMagick install required for a quick check.
Transparency in WebP
WebP supports alpha like PNG. Verify in target browsers; Safari and modern Chrome handle WebP transparency well. Keep PNG masters in your repo.
Lossy WebP from PNG
Our encoder uses lossy WebP for smaller files. For pixel-perfect UI, compare output zoomed in; raise quality on the slider if edges look soft.
Related guides
- WebP for Developers: Encode, Decode, and Convert
WebP for frontend developers: encode, decode, and convert PNG/JPG both ways—browser-local workflows, Lighthouse tips, and JPG/PNG fallbacks for legacy clients.
- WebP vs JPG: Which Format Should You Use in 2026?
WebP vs JPG for websites, email, and storage, with free conversion tools.
Frequently Asked Questions
Does WebP support transparency from PNG?
Yes. WebP supports alpha; most modern browsers display it correctly.
PNG vs WebP for UI?
Use WebP on the web with fallbacks; keep PNG for source files.
Lossless WebP?
Our tool uses lossy WebP by default for smaller files.
Safari support?
Safari supports WebP; always provide fallbacks for ancient clients.
Limits?
No fixed cap; device memory is the practical limit.
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