Super Boring Tools

Search tools

Find a tool by name or what it does.

PNG to WebP Converter

Convert a PNG to WebP at a quality you choose, transparency intact.

PNG image
Drop an image here or click to browse
or paste from clipboard (Ctrl+V) · JPEG, PNG, WebP
Files stay in your browser. Nothing is uploaded.

How to convert a PNG to WebP

  1. Add your PNG

    Drop a PNG onto the tool, click to browse, or paste one from your clipboard. It converts straight away.

  2. Pick a quality mode

    Adjustable gives you a slider from 10 to 100 percent. Maximum quality encodes at the top setting for the closest match to the original.

  3. Check the saving

    The result line shows the PNG size next to the WebP size and the percentage saved, on a checkerboard so transparency is visible.

  4. Download the WebP

    Click Download WebP to save the file with its extension already switched to .webp.

Why use this tool

Big savings on flat graphics

Logos, icons, and UI screenshots commonly drop by half or more compared with the PNG they came from, which is why WebP is a standard step before putting images on a site.

Transparency survives

WebP has a full alpha channel, so a cutout, a rounded corner, or a logo on a transparent canvas comes out exactly as it went in.

Two ways to encode

Adjustable mode trades size against detail on a slider. Maximum quality encodes at the top setting when the image has to stay as close to the source as possible.

Unsupported browsers are told

If the browser cannot write WebP files, the tool says so up front instead of handing you a broken download.

Nothing is uploaded

Encoding runs on your device with no account, no queue, and no watermark.

About this tool

WebP was designed to replace both PNG and JPG on the web: it keeps the alpha channel PNG is usually chosen for, while compressing far more aggressively. For interface screenshots, illustrations, and logos, a WebP is routinely half the size of the equivalent PNG at a quality nobody notices, which shows up directly in page load times and bandwidth bills.

This converter decodes the PNG, redraws it, and encodes WebP at the setting you choose. Quality defaults to 85 percent, a good balance for graphics with both flat areas and photographic detail. Moving the slider re-encodes immediately and updates the exact byte count, so you can find the point where the file stops shrinking meaningfully. Maximum quality mode pushes the encoder to its top setting for cases where the output has to stay as faithful as possible to the source.

Every current browser can display WebP, and the ones that can write it will produce a file here. Where a target platform still refuses the format, convert the other way with the WebP to PNG converter, or use the image format converter to move between all three common formats. If the goal is purely a smaller file in the same format, the image compressor is the more direct tool.

Frequently asked questions

How do I convert a PNG to WebP?
Drop a PNG into the box. It converts immediately, and you can move the quality slider or switch to maximum quality before downloading the WebP.
Does WebP keep transparency?
Yes. WebP supports a full alpha channel, so transparent areas in the PNG stay transparent. The preview sits on a checkerboard so you can confirm it.
How much smaller is WebP than PNG?
Typically 30 to 80 percent smaller depending on the image, with the biggest wins on photographic content. The result line shows the exact before and after sizes.
Will WebP work everywhere?
Every current browser displays WebP. Some older desktop software and printers still do not accept it, in which case convert back to PNG or JPG.
Are my images uploaded anywhere?
No. The conversion happens entirely in your browser and the file is never sent to a server.

Related tools