Yes. It is free, needs no account and adds no watermark. You can convert several PNG files at once, up to 50 MB each.

Are my PNG files uploaded?

No. The conversion runs in your browser with the Canvas API, so your images stay on your device.

What does the quality setting do?

The slider runs from 1 to 100 and starts at 85. Lower numbers make a smaller file with more visible compression; higher numbers keep more detail. The result updates as you move it, and if a WebP would come out larger than the original PNG, the tool re-encodes it at a lower quality so the output is never bigger than the input.

Is PNG transparency kept?

Yes. Transparent areas of a PNG stay transparent in the WebP, because WebP supports an alpha channel.

Files & Assets

PNG to WebP Converter

Convert PNG images to WebP for smaller web-ready files.

Ready to use

Drop files here

Drop a file, get the result. Nothing is uploaded.

PNGMax 50 MB

Files stay in your browser — nothing is uploaded

WebP Quality85%

Smaller fileBetter quality

Last reviewed: October 24, 2026
Runs in your browser: nothing is uploaded
Found an error?

Did this help?

Helpful answers

Frequently asked questions

Is PNG to WebP free?: Yes. It is free, needs no account and adds no watermark. You can convert several PNG files at once, up to 50 MB each.
Are my PNG files uploaded?: No. The conversion runs in your browser with the Canvas API, so your images stay on your device.
What does the quality setting do?: The slider runs from 1 to 100 and starts at 85. Lower numbers make a smaller file with more visible compression; higher numbers keep more detail. The result updates as you move it, and if a WebP would come out larger than the original PNG, the tool re-encodes it at a lower quality so the output is never bigger than the input.
Is PNG transparency kept?: Yes. Transparent areas of a PNG stay transparent in the WebP, because WebP supports an alpha channel.

Navigation

Files GIF Compressor WebP to PNG Converter Image Compressor PNG to JPG Converter

When to use this

Use this converter when a website or app accepts WebP and a PNG image is larger than you need. Try it on photographs or complex graphics, then compare the output size and appearance with the original. The result depends on the source image and the browser's encoder; a WebP is not guaranteed to be smaller.

Keep the PNG when you need a lossless working file, pixel-exact text or edges, or compatibility with software that does not accept WebP. Changing format alone does not guarantee a faster page: displayed dimensions, image loading, caching, and other page assets also matter.

Good to know

Transparency can be preserved. WebP supports alpha transparency, unlike JPG. Check the converted image against the background where you plan to use it, especially around soft edges.

Quality is a tradeoff. This tool uses the browser's WebP encoder with an adjustable lossy quality setting. Start at the default, inspect text, edges, and gradients at the intended display size, then lower quality only if the result remains acceptable.

Compare the actual bytes. A small or already optimized PNG may produce a WebP that is no smaller. If that happens, try a lower quality setting, resize a copy if appropriate, or keep the PNG.

Check your delivery pipeline. Some image services already create WebP variants. Verify what your site actually serves before converting an entire library by hand.

Quick Reference

Feature	PNG	WebP
Compression	Lossless only	Lossy + lossless
Transparency	Yes (alpha)	Yes (alpha)
Output size	Depends on source	Depends on source and quality
Browser support	Broad	Modern browsers
App support	Check destination	Check destination
Best for	Editing, archiving	Web delivery

Related Tools

GIF Compressor

new

Compress animated GIFs in your browser while preserving motion.

WebP to PNG Converter

Convert WebP images to still PNG files in your browser.

Image Compressor

featured

Compress JPG, PNG & WebP images and compare the result.

PNG to JPG Converter

Convert PNG images to JPG with a white background fill.