PNG to WebP Converter
Convert PNG images to the efficient WebP format to dramatically reduce file size and speed up your web pages. Transparency is fully preserved, and conversion happens entirely in your browser — no upload, no account, no waiting.
How to Convert PNG to WebP
Drop your PNG into the upload area or click to browse. Adjust the quality slider — 80–90% gives an excellent balance of file size savings and visual quality. Click Convert to WebP, compare the two images in the preview panel and check how much smaller the WebP is. Click Download WebP to save the output.
Why Use WebP for Web Images?
Google created the WebP format specifically to speed up the web. WebP files are 25–80% smaller than PNG at comparable visual quality, which directly improves page load times and Core Web Vitals scores. Unlike JPG, WebP preserves transparency, making it a drop-in replacement for PNG in almost all web contexts. All modern browsers have supported WebP since 2020.
PNG vs WebP — Size Comparison
| Image type | PNG size | WebP size (est.) | Saving |
|---|---|---|---|
| Logo / graphic | 200 KB | 50–80 KB | 60–75% |
| Screenshot | 500 KB | 150–200 KB | 60–70% |
| Photograph | 2 MB | 400–600 KB | 70–80% |
📖 See real file size savings and browser support data: How to Convert PNG to WebP for Faster Web Pages
Frequently Asked Questions
How much smaller is WebP compared to PNG?
WebP typically produces files 25–80% smaller than equivalent PNG files. The saving varies with image content and quality setting — photographs see the biggest reductions. Check the size readout in the preview after converting.
Does WebP support transparency like PNG?
Yes. WebP supports full alpha-channel transparency. Any transparent areas in your PNG will appear transparent in the WebP output too — no fill colour needed.
Will all browsers display WebP images?
All modern browsers (Chrome, Firefox, Safari, Edge) have supported WebP since 2020. Internet Explorer does not, but it accounts for less than 1% of users. For maximum safety, serve WebP via a <picture> element with a PNG fallback.
Is my PNG file uploaded to a server?
No. The entire conversion runs in your browser using the HTML5 Canvas API. Your image never leaves your device and no account is required.