MorphFlux
Free · No signup · Runs in browser

Free PNG to WEBP Converter

Convert PNG images to WEBP to reduce file size — faster websites, no upload needed.

Drop files here — any supported format

or click to browse — unsupported types are dimmed in the file picker · local processing

Max file size: images / data / documents 50 MB · audio & video 200 MB · subtitles 10 MB. This tool: up to 50 MB per file.

Why use MorphFlux?

PNG to WEBP conversion runs entirely in your browser — smaller file sizes, faster websites, no server upload.

Significantly smaller file size

WEBP files are typically 25-35% smaller than equivalent PNG files, helping your website load faster.

Runs locally in your browser

Your PNG files are processed entirely on your device using the Canvas API. Nothing is uploaded to any server.

Preserves transparency

Transparent areas in your PNG are correctly preserved in the WEBP output, maintaining any alpha channel data.

Free with no signup required

Convert as many PNG files to WEBP as you need, completely free. No account, no email, no credit card required.

When would you need this?

Common scenarios where converting PNG to WEBP improves web performance and reduces storage.

1

Optimizing PNG website images to WEBP for faster page load times and better Core Web Vitals scores

2

Converting PNG graphics and logos to WEBP to reduce bandwidth usage and storage costs

3

Transforming PNG design assets to WEBP for use in modern web applications

About PNG and WEBP

Understanding the difference between PNG and WEBP, and the benefits of converting for web use.

PNG

What is PNG?

PNG (Portable Network Graphics) is a lossless image format widely used for graph logos, and images requiring transparency. PNG files are high quality but can be large in file size, making them less ideal for web performance.

WEBP

What is WEBP?

WEBP is a modern image format developed by Google that provides 25-35% smaller file sizes than PNG while maintaining comparable visual quality. WEBP is supported by all modern browsers and is the recommended format for web images.

Frequently Asked Questions

Everything you need to know about converting PNG to WEBP online.

How do I convert PNG to WEBP?

Drop your PNG file into the converter above or click to select it. The conversion happens instantly in your browser and you can download the WEBP file right away.

How much smaller will the WEBP file be?

WEBP files are typically 25-35% smaller than PNG files. The exact reduction depends on the image content.

Is transparency preserved?

Yes. Transparent areas in your PNG are correctly preserved in the WEBP output.

Is my file uploaded to a server?

No. All conversion happens locally in your browser. Your files never leave your device.

Is WEBP supported everywhere?

WEBP is supported by all modern browsers including Chrome, Firefox, Safari, and Edge. For maximum compatibility with older software, consider keeping a PNG backup.

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