Convert PNG to WebP
Drop your PNG below. WebP gives you smaller files with the same quality.
Drop your files here
or click to browse — up to 50 MB per file
Images, PDFs, Word docs, PowerPoints, audio, and more
Privacy first — most conversions happen in your browser
Why WebP is better for the web
WebP was developed by Google as a modern replacement for both PNG and JPG on the web. It supports lossy compression (like JPG), lossless compression (like PNG), and transparency (like PNG) — all in one format. WebP files are typically 25-35% smaller than equivalent PNGs with no visible quality difference. Every major browser supports WebP as of 2023, making it safe for production websites. Google PageSpeed Insights specifically recommends serving images in WebP format.
How the conversion works in your browser
OnlyFiles converts PNG to WebP entirely in your browser using the HTML5 Canvas API. Your image is drawn onto a canvas and exported as WebP — no server, no upload, no waiting. The conversion is instant and completely private. This browser-based approach means your images never leave your device, which is especially important for website assets, product photos, or any images you wouldn't want on a third-party server.
When to use this
- Optimize website images for faster page load times
- Reduce image file size without visible quality loss
- Meet Google PageSpeed recommendations for image formats
Frequently asked questions
What is WebP and why should I use it?
WebP is a modern image format developed by Google. It produces files 25-35% smaller than PNG at the same quality, and supports both lossy and lossless compression plus transparency. It's the recommended format for website images.
Do all browsers support WebP?
Yes, as of 2023 all major browsers support WebP — Chrome, Firefox, Safari, Edge, and Opera. It's safe to use WebP for any web project.
Does WebP support transparency like PNG?
Yes. WebP supports full alpha channel transparency just like PNG, but at a much smaller file size. This makes it ideal for logos, icons, and graphics on websites.