Free Online PNG to WebP Converter

Convert PNG to WebP

Optimize your PNG files by converting to WebP. Keep full transparency (alpha channel) while drastically reducing file sizes for the web.

Drop your image here

or click to browse files

PNG

What Is a PNG to WebP Converter?

A PNG to WebP converter modernizes lossless PNG images into the web-native WebP format. WebP offers a lossless mode that beats PNG compression by around 25%, plus a lossy mode that shrinks graphics far more — and it keeps the alpha transparency that makes PNG useful.

Everything happens locally in your browser: instant conversion, quality control, and total privacy.


Every Format You Might Need

Convert between all major formats freely — no restrictions, no limits.

JPG / JPEG
Ideal for photos & web images with smaller file sizes.
PNG
Best for transparency, graphics, and lossless quality.
WebP
Modern web-optimized format with superior compression.
GIF
Animations and simple graphics with limited colors.
BMP
Uncompressed bitmap format for maximum raw fidelity.
TIFF
High-quality print images used in professional workflows.

Convert PNG to WebP in 3 Simple Steps

No software downloads. No sign-up required. Just upload, select, and download.

01

Upload your PNG

Click 'Upload' or drag and drop your PNG file. Transparency is preserved automatically.

02

Select WebP as the output format

Choose WebP from the format dropdown and pick your quality level — transparency survives either mode.

03

Download your WebP file

Hit 'Convert' and download instantly. Your original PNG is never stored — privacy is guaranteed.


Why Convert PNG to WebP?

WebP does everything PNG does, but smaller. Lossless WebP beats PNG by roughly 25% on the same image; lossy WebP can cut graphics down dramatically more while staying visually clean. Transparency carries over in both modes.

For websites, that means faster loads, better LCP scores, and happier visitors — with no visible trade-off.

~25% smaller than PNG, still lossless
Keeps alpha transparency intact
Improves Core Web Vitals and SEO
One format for photos and graphics

Image Size Converter — Resize While You Convert

Our tool doubles as a powerful image size converter. Along with changing the format, you can resize your image to exact pixel dimensions or a percentage of the original.


Frequently Asked Questions

Yes. WebP supports a full alpha channel in both lossy and lossless modes, so transparent areas stay transparent.
Usually, by about 25%. Results vary with image content — flat-color graphics compress especially well.
If a specific tool or workflow requires PNG files, or if you need maximum compatibility with older software, keep PNG.
All browsers released since 2020 support WebP. If your audience includes very old browsers, provide a PNG fallback.
Never. All processing happens on your device. Your files never touch our servers.