Convert PNG to WebP

How do I convert PNG to WebP?

1. Choose or drop your PNG.
2. Select WebP as the output, then adjust the quality slider to balance size and sharpness.
3. Press Convert, compare the previews, and download the WebP.

When should you convert PNG to WebP?

WebP is the format most websites now use for their own images. Like PNG it supports transparency, but its compression is far more efficient, so logos, icons and illustrations load faster. That makes it a good fit for anything you publish online, where every kilobyte affects how quickly a page appears.

• Transparent logos and icons for a website header or footer.
• Interface screenshots in documentation or blog posts, where page speed matters.
• Cut-out product images for an online shop.

What do you keep and what do you lose?

You keep

• The alpha channel, so transparent and semi-transparent areas stay that way.
• Width, height and the overall look at the default quality of 85.

You lose

• A little fine detail at low quality settings, which is most visible on small text.
• Embedded metadata.
• Compatibility with some older image editors that cannot open WebP.

In our test (Chromium 156.0.8078.4, 2026-10-23), converting a transparent logo from PNG to WebP at quality 85 changed its size: 224 KB → 25 KB (89% smaller).

Is WebP always smaller than JPG?

Usually, but not always, and the content of the image decides how wide the gap is. On our website screenshot at quality 85, the WebP weighed 49 KB against 85 KB for a JPG made from the same PNG. WebP handles flat colours and sharp text far better than JPG, which is why it suits interface captures, diagrams and anything with lettering.

Photos are closer, and the order can flip. At quality 75 our landscape photo was clearly smaller as WebP, but at quality 95 the WebP came out larger than the JPG, as the table shows. At very high settings WebP keeps more fine detail than the eye needs, so if you export near-lossless photos, compare both formats before choosing. Screenshots never flipped: even at quality 95 the WebP stayed well below the JPG, so there is no reason to pick JPG for graphics on the web. For logos and anything transparent the question does not arise, because JPG cannot keep the background at all.