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PNG to WebP Converter.

Convert PNG images to WebP locally with adjustable quality and optional resizing. Keep transparency where your browser supports WebP output.

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Convert your file

INPUTPNG
OUTPUTWebP
Files stay on your device

Up to 12 files · 20 MiB each · 30 megapixels per image · uncommon formats have documented limits

Output settings (optional)
88%

The actual file-size change is calculated after conversion; it cannot be predicted in advance.

Output dimensions

Maximum longest edge · preserves aspect ratio · never enlarges your image.

Choose your source image to begin.
✓ Free✓ No signup✓ No file uploads needed
Private processingYour source file stays in your browser
Original stays intactDownload a new output file
Real formatsUnsupported conversions show an error

STEP BY STEP

How to convert PNG to WebP

  1. Choose a source file. Select a real PNG file from your device.
  2. Run the local converter. If relevant, set the quality and maximum dimensions before converting.
  3. Download the result. Save the generated WebP file. Your original file is unchanged.

FORMAT GUIDE

Why convert PNG to WebP?

WebP can retain transparency while often delivering smaller files than PNG, especially for suitable graphics and images.

  • Publishing transparent website assets.
  • Reducing the weight of screenshot-heavy content.
  • Preparing images for WordPress posts and landing pages.

UNDERSTAND YOUR FILES

PNG vs. WebP: what changes?

Input · PNG

A losslessly encoded still-image format, useful for graphics, screenshots, text, and transparent backgrounds.

Output · WebP

A modern web image format supporting transparency; browser WebP export can be lossy.

WebP can retain transparency while often delivering smaller files than PNG, especially for suitable graphics and images. Choosing an output format changes how another app reads the file; it does not restore detail missing from your source.

Which settings should you choose?

Try Balanced (88%) first, inspect the preview, then switch to Compact for a smaller result or Detailed for greater fidelity. These are export quality settings, not promises of a particular compression ratio.

Your files and privacy

Your selected file is converted on your device. You can download the new file while keeping the original unchanged.

Some formats work differently across browsers and devices. Check the converted result before using it for important work. Advertising and other optional website services may have separate privacy practices.

Format compatibility and limitations

This browser converter uses the browser WebP encoder, which may use lossy compression. It is not a guaranteed lossless PNG-to-WebP optimizer.

Actual output behavior depends on the input file, your browser, device resources and the converter engine. Check important files before sharing or replacing them.

HELP & ANSWERS

PNG to WebP questions

Is transparency preserved?

WebP supports alpha transparency and the canvas export normally preserves it.

Will WebP preserve every PNG pixel exactly?

Not necessarily. Browser WebP export may be lossy; verify important line art and text.

Does WebP need a special plugin in WordPress?

Modern WordPress installations support uploading WebP, subject to hosting and site configuration.

KEEP EXPLORING

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