PNG to WEBP Converter

Free PNG to WEBP converter. Batch up to 10 images, track progress step by step, and download as WEBP or ZIP. 100% local in your browser. No account.

How do I convert PNG to WEBP?

Add your PNG files, click convert, and download WEBP images. Decoding and encoding run entirely in your browser - files are never uploaded to a server.

Can I convert multiple PNG files at once?

Yes. Add up to 10 images per batch. When you convert more than one file, download everything as a single ZIP.

Are my images uploaded?

No. Every step runs locally in your browser. Close the tab and the data is gone. ONNOFF does not receive, store, or log your files.

Will converting PNG to WEBP reduce quality?

WEBP is a lossy format - use the quality slider to balance file size and detail. Higher quality keeps more detail but produces larger files.

Is this converter free?

Yes. Free, no account, no watermark. Use it for personal or commercial workflows that comply with your local laws and the rights you hold on the images.

PNG → WEBP

Free browser tool

Convert PNG to WEBP without losing quality

Drop up to 10 PNG images. Convert to WEBP in your browser with live progress and final file size. Nothing uploads - download one file or a ZIP.

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How it works

  1. 1

    Add images

    Drop PNG files or browse - up to 10 at a time.

  2. 2

    Convert locally

    Each image is decoded and re-encoded as WEBP in your browser. Watch progress at every step.

  3. 3

    Download

    Save a single WEBP file or download a ZIP when you converted multiple images.

Other conversions

PNG → HEICPNG → JPGHEIC → WEBPJPG → WEBP

Private by default

Images never leave your browser. No cloud upload, no account. Built by ONNOFF.

FAQ

How do I convert PNG to WEBP?
Add your PNG files, click convert, and download WEBP images. Decoding and encoding run entirely in your browser - files are never uploaded to a server.
Can I convert multiple PNG files at once?
Yes. Add up to 10 images per batch. When you convert more than one file, download everything as a single ZIP.
Are my images uploaded?
No. Every step runs locally in your browser. Close the tab and the data is gone. ONNOFF does not receive, store, or log your files.
Will converting PNG to WEBP reduce quality?
WEBP is a lossy format - use the quality slider to balance file size and detail. Higher quality keeps more detail but produces larger files.
Is this converter free?
Yes. Free, no account, no watermark. Use it for personal or commercial workflows that comply with your local laws and the rights you hold on the images.

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