PNG to WebP

Convert PNG images to WebP for smaller files with transparency support.

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Select PNG File

or drop your PNG image here

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How it works

Upload PNG

Select your PNG image file.

Convert

We convert it to WebP preserving transparency.

Download

Download your WebP image.

About This Tool

PNG is the go-to lossless format for web graphics, but its file sizes can be large — particularly for complex illustrations and photos with transparency. Converting PNG to WebP keeps the transparency channel intact while producing files that are typically 26% smaller than their PNG equivalents, directly speeding up your web pages without any visible quality loss.

JustConvert's PNG to WebP converter preserves the full alpha channel so any transparent backgrounds, shadows, or cutouts in your original PNG appear exactly the same in the WebP output. The format is supported natively by Chrome, Edge, Firefox, and Safari, covering well over 95% of global web users.

check_circleFull alpha-transparency preserved
check_circle~26% smaller than equivalent PNG
check_circleNo visible quality difference
check_circleSupported by all modern browsers
check_circleSpeeds up page load and improves Core Web Vitals
check_circleFiles deleted automatically after download

Frequently Asked Questions

Does WebP support transparency like PNG? expand_more

Yes. WebP supports a full alpha channel, so transparent pixels in your PNG are preserved exactly in the WebP output. This makes WebP a direct replacement for PNG in nearly all web-graphics scenarios.

How much smaller will the WebP file be? expand_more

Google's benchmarks show WebP lossless compression is typically 26% more efficient than PNG. In practice the savings depend on image content, but you can expect a meaningfully smaller file in most cases.

Is WebP supported by all browsers? expand_more

WebP is supported by Chrome, Edge, Firefox, and Safari 14+. Older Safari versions (iOS 13 and below, macOS Catalina and below) do not support it, but those browsers account for less than 3% of global traffic today.

Can I convert PNG files with transparent backgrounds? expand_more

Yes, transparency is fully supported. The converted WebP will have the same transparent areas as the original PNG, making it suitable for logos, icons, and UI elements.

Is this tool free? expand_more

Yes, the PNG to WebP converter is completely free. You can convert files without creating an account, and there are no watermarks added to the output.