SEO

Convert PNG to WEBP

Modernize your PNG images with WEBP.
Superior compression for transparency.

How to PNG to WEBP Converter - Web Optimization Tool

Convert PNG to WEBP format. Drastically reduce file size for transparent images. Improve website speed.

Upload PNG file

Select or drag and drop your file to start png to webp online. No account or software install required.

Select WEBP as target

Select WEBP as the output for png to webp. Shrink PNG assets for web while keeping strong visual quality.

Download WEBP

Download your result instantly. Your convert png to webp output is ready to share, email, or publish.

Why Use FormatWiz for PNG to WEBP?

Free, secure PNG to WEBP with client-side processing—no signup required.

Instant

Fast client-side processing.

Private

Your photos stay yours.

Optimized

Balance quality and size.

100% Secure

Your PNG to WEBP runs locally in the browser—files never upload to our servers.

Lightning Fast

No upload queues—get instant results from our free PNG to WEBP online.

PNG's web-era replacement

WebP does what PNG does — transparency included — at a fraction of the size: 25–50% smaller typically, more on photographic content. For website delivery it is simply the better container. For everything else (editing, print, old software), the PNG original still earns its keep.

Property	PNG	WebP
Transparency	Yes	Yes — preserved
Lossless mode	Always	Available
Typical size saving	—	25–50%
Flat graphics	Already efficient	Smaller gain
Print & legacy apps	Universal	Patchy

Typical jobs people use this for

Converting UI screenshots for a documentation site
Shrinking transparent product cut-outs for a shop
Serving lighter hero images without visible change

When this is the wrong tool

Keep PNG masters for anything that will be edited again or sent to print. And if the graphic is a tiny flat-color icon, PNG is already efficient — the conversion saves little.

Frequently Asked Questions

Is transparency preserved?

Yes. WebP supports an alpha channel, so transparent PNGs convert cleanly — which is what makes it a genuine replacement for PNG on the web rather than a compromise.

How much space will I save?

Often 25–50% compared with PNG, and sometimes considerably more on images with photographic content. Flat graphics with few colours are where PNG already does well, so the saving there is smaller.

Is WebP lossy or lossless?

It supports both. Lossless WebP is a direct PNG replacement with no quality change; lossy WebP gives much smaller files with a small, usually invisible, quality cost. Which one suits depends on whether the image is a diagram or a photograph.

Should I replace all my PNGs with WebP?

For website delivery it is generally a sound move. Keep PNG originals for anything that will be edited, sent to a printer, or opened in software that may not accept WebP.

Does my image leave my device?

No. Conversion is performed in your browser.

Guides & Tutorials

Step-by-step guides for every FormatWiz tool — free, private, and browser-based.

View all guides

Converter3 min read

How to Convert PNG to WEBP Online to Shrink Web Images

Learn how to convert PNG to WEBP online free in your browser, balance compression against quality, and create smaller web-ready images with no signup.

Read guide

Converter3 min read

How to Convert HEIC to JPG When iPhone Photos Won't Open on Windows

Why iPhone HEIC photos won't open on Windows, how to convert them to JPG free in your browser, and how to make your iPhone shoot JPG from the start.

Read guide

Converter3 min read

How to Convert HEIC to PNG for Lossless, Edit-Ready Images

Learn how to convert HEIC to PNG online free for lossless, edit-ready images — no signup, with crisp detail kept intact entirely in your browser.

Read guide

Explore More Tools

HEIC to JPG HEIC to PNG PNG to JPG