PNG to WebP Converter Online - Transparent WebP Output | Piczilo
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Image converter

PNG to WebP

Convert a PNG image to WebP without uploading it. Piczilo works as a browser-side PNG to WebP converter with sensible quality control, keeps the original pixel dimensions unchanged and preserves transparent areas when the source PNG has them.

Target: PNG to WebPPNG inputBrowser-only

Choose an image

Convert a PNG image to WebP with quality control and transparency preserved.

Step 1 of 2
Choose one image to convert locally.

Local processing

Runs inside your browser

No upload

Your file stays on your device

Configured output

Download uses .webp

Before you start

Inputs, output and limits

Practical details from this tool's current settings.

Supported input

PNG files up to 25 MB.

Download output

PNG input converted to WebP download format.

Processing

Selected file is processed in your browser and no public result URL is created.

Tradeoff

This tool accepts PNG images only.

Simple process

How it works

  1. 1

    Choose one PNG image from your device.

  2. 2

    Piczilo validates that the file is PNG before conversion.

  3. 3

    Adjust WebP quality to balance file size and visible detail.

  4. 4

    Download the converted WebP without uploading the image.

Useful for

  • Reducing PNG file size with WebP for website images.
  • Creating a transparent WebP from a transparent PNG without changing dimensions.
  • Preparing PNG artwork for modern web workflows that accept WebP.

Limitations

  • This tool accepts PNG images only.
  • WebP output depends on browser canvas export support.
  • Lower quality settings can reduce file size but may soften fine details.

Learn more

Helpful guides

Practical guides that explain the format and file-size decisions behind this tool.

JPG vs PNG vs WebP: Which Image Format Should You Use?A practical format comparison for photos, transparent graphics, website images and everyday file-size decisions.Read guideHow to Convert WebP to PNG Without Losing TransparencyLearn what happens to transparency during WebP-to-PNG conversion and how to keep the output dimensions and alpha channel intact.Read guide

Questions

Frequently asked questions

Yes. Piczilo converts the PNG image to WebP locally in your browser and prepares the download on your device.

Yes. Transparent pixels in the source PNG are preserved in the WebP output when your browser supports WebP export.

Often, yes. WebP can make PNG images smaller, especially photo-like or complex graphics, but the result depends on the image and quality setting.

Yes. This PNG to WebP converter draws the full source image at its original displayed width and height.

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