PNG to WebP Converter
WebP usually produces files 25–35% smaller than PNG at visually identical quality, and it keeps the alpha channel. For anything destined for a website, it is the single easiest performance win available.
Runs in your browser — the file is never uploaded
Drop any file to begin
Images · Documents · Data · Audio · Video — processed locally in your browser
How to convert PNG to WEBP
- 1Drop your PNG onto the converter.
- 2Select WebP as the output and set a quality value.
- 3Use 80–90 for photography and 90+ for graphics with sharp edges or text.
- 4Convert and download.
Things worth knowing
- Every current browser supports WebP, but email clients are inconsistent — stick with PNG or JPG for email.
- Serve WebP with a PNG or JPG fallback if you must support very old software.
PNG to WEBP — frequently asked questions
How much smaller will the WebP be?
Typically 25–35% smaller than an equivalent PNG, and often far more for photographic content, where lossy WebP can beat PNG by 70% or more.
Are my files uploaded to a server?
No. AllConverter runs the whole conversion inside your browser tab using WebAssembly and the Canvas API. Your file never travels over the network, which you can confirm by watching your browser's Network tab while you convert.