Will transparency be preserved?

Yes. WebP supports full alpha transparency, and the converter passes it through pixel-perfect.

By default this converter uses lossy WebP at your chosen quality (90%+ is visually indistinguishable). WebP also supports lossless mode which is smaller than PNG but larger than lossy WebP.

Do all browsers support WebP?

Yes — Chrome, Firefox, Safari (14+), Edge, and all modern mobile browsers. iOS 14+ and every current desktop OS.

Should I convert PNG or use it as-is?

For the web, WebP almost always wins. For editing, print, or long-term archival, keep PNG. For transparent logos in a design system, WebP is smaller but PNG is more compatible with older tooling.

No. The canvas API decodes PNG and encodes WebP entirely in your browser.

Convert PNG to WebP

PNGs are large. WebP compresses the same image with transparency intact and file sizes typically 60–80% smaller — perfect for the web. Convert in your browser, adjust quality to taste, keep the alpha channel.

Drop PNG files, or click to browse

PNG → WebP · runs locally · up to 10.00 MB on free · Pro unlocks batch mode

About PNG

PNG is the classic lossless format from 1996. Every tool reads it, transparency works everywhere, and no pixel is ever re-compressed. The tradeoff is file size — a photographic PNG is often 10× bigger than the equivalent JPG or WebP.

About WebP

WebP was designed by Google specifically to replace PNG and JPG on the web. It offers both lossy and lossless modes, full alpha transparency, and dramatically smaller files. Every mainstream browser has supported it since 2020.

Why convert PNG to WebP?

Convert PNG → WebP to speed up your website, cut CDN bandwidth, hit better Core Web Vitals scores, or shrink an oversized icon/screenshot library without losing transparency.

What people use it for

Optimize PNG website assets for faster page loads and better Lighthouse scores
Shrink a transparent logo library before shipping to production
Reduce app bundle size by converting PNG UI assets
Cut cloud storage bills for a large PNG archive
Batch-convert a folder of PNG exports at once (Pro)

How it works

1
Drop a .png file
Click the drop zone or drag any PNG file in. Files stay on your device.
2
Adjust quality (optional)
Drag the quality slider. 90%+ is visually indistinguishable from the source; lower values shrink the file further.
3
Click Convert to WebP
The conversion runs in your browser. When it's done, click Download.

Frequently asked questions

For typical PNGs, expect 60–80% file size reduction at 90% quality — often more for photographic content. Lossless mode still shrinks files 20–30% smaller than PNG.