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Convert PNG to WebP

Free, private, and instant — your files never leave your device.

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PNG stores every pixel exactly using lossless compression — no detail is ever discarded. That precision is valuable for screenshots, logos, and diagrams, but produces large files for photographic content. WebP applies lossy compression that achieves dramatically smaller files by discarding spatial detail the eye barely perceives at the frequencies involved. Transparency is preserved — WebP supports full alpha, so transparent areas in the PNG remain transparent in the output. At quality settings of 85%+, the visual difference between a lossless PNG and a WebP is imperceptible in photographs — yet the WebP file is typically 25–60% smaller.

When you’d want this conversion

  • Serving images on a website — WebP is 25–34% smaller than JPEG and keeps the transparent background
  • Uploading to a CMS or web pipeline that accepts WebP
  • Reducing PNG file size for web use without sacrificing the transparent background
  • Optimising Core Web Vitals by replacing heavy PNGs with smaller WebP equivalents

What to watch for

The lossy encoding is permanent — once converted, the discarded detail cannot be recovered. Keep the original PNG as your master file if you may need to edit it again.
From.png

PNG

Portable Network Graphics

  • Lossless compression
  • Supports transparency
  • Best for: screenshots, logos, graphics with transparency, diagrams
To.webp

WebP

Web Picture format

  • Lossy compression
  • Supports transparency
  • Best for: web images, CMS uploads, app assets

More PNG Conversions

Convert PNG to JPEG Convert PNG to AVIF

Convert Other Formats to WebP

Convert JPEG to WebP Convert GIF to WebP Convert BMP to WebP Convert AVIF to WebP Convert HEIC to WebP Convert SVG to WebP

Related Tools

Convert WebP to PNG Compress PNG Image Converter

Related Guide

PNG vs JPG vs WebP vs AVIF

How to Use

  1. 1

    Drop your PNG file or click to browse — the output format is already set to WebP.

  2. 2

    Adjust the quality slider. 85–90% is a good starting point; lower values produce smaller files with more visible compression.

  3. 3

    Click "Convert to WebP" — conversion runs entirely in your browser.

  4. 4

    Download the WebP.

Frequently Asked Questions

How much smaller will the WebP be compared to the PNG?

Typically 25–34% smaller at equivalent visual quality. Exact savings depend on image content; natural scenes compress more than high-frequency graphic detail.

Does converting PNG to WebP reduce image quality?

WebP uses lossy compression, so some fine detail is permanently discarded — but at quality settings of 85%+, the difference is imperceptible in photographs and most graphics. For images you plan to edit further, keep the original PNG as your master copy.

Does WebP work everywhere?

All major browsers — Chrome 23+, Firefox 65+, Edge 18+, and Safari 14+ — support WebP natively, as do most modern image editors and CMS platforms. Very old software or email clients may not support it; PNG or JPEG is the safer choice for those contexts.

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Browse every supported format pair — pre-configured and ready to go.

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