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PNG to WebP — Convert PNG Images to WebP Online

Convert PNG images to WebP format. Lossy or lossless, preserves transparency, runs entirely in your browser — no upload.

● LOCAL · EXIF NEVER UPLOADED0 network requests since page load

Drop your PNG image here

or click to browse (max 50MB)

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Open the converter

WebP is Google’s image format, released in 2010 and now the standard format for serving images on the web. It supports lossy compression (comparable to JPEG but 25-34% smaller at the same visual quality), lossless compression (comparable to PNG but 26% smaller), transparency (alpha channel in both modes), and animation. Every major browser supports it, every major CDN serves it, and converting from PNG to WebP is the first step in any web-performance optimisation that involves images. The conversion is lossless if you choose lossless mode — the output is pixel-for-pixel identical to the input — and aggressively smaller if you choose lossy mode. The transparency channel is preserved either way, which is the key advantage of WebP over JPEG for graphics work.

How to use

  1. Drop your PNG

    Drag one or more PNG images into the drop zone. The converter reads the PNG and encodes to WebP at the chosen quality level.

  2. Choose lossy or lossless

    Lossless WebP preserves every pixel exactly — the output is visually identical to the input and typically 26% smaller than the PNG. Lossy WebP can produce files up to 80% smaller with minimal visual difference.

  3. Download the WebP files

    Download individually or as a zip. Transparent areas are preserved in both lossy and lossless modes.

Frequently asked

Should I choose lossy or lossless?

Lossless WebP is the right choice for graphics, logos, and images with text or sharp edges — anything where pixel-perfect reproduction matters. Lossy WebP is the right choice for photographs and images where file size matters more than pixel perfection.

Does WebP preserve transparency?

Yes. WebP supports an 8-bit alpha channel in both lossy and lossless modes. Transparent areas in the source PNG are preserved exactly in the output WebP.

Is WebP supported everywhere?

As of 2026, WebP is supported in every major browser: Chrome, Firefox, Safari, Edge, and Samsung Internet. CMS platforms like WordPress, Shopify, and Webflow accept WebP uploads. The only holdouts are some legacy image editors and older desktop apps.

How much smaller is WebP than PNG?

Google's own measurements show that lossless WebP images are on average 26% smaller than the equivalent PNG. Lossy WebP images are 25-34% smaller than the equivalent JPEG at the same visual quality. The actual savings depend on the image content.

Limitations

  • No animation support in this converterThe converter handles static PNG images. Animated PNG (APNG) files are not supported. For animated images, use a dedicated GIF or video converter.

Platform notes

Web
Runs entirely client-side. No upload. The conversion is near-instant.

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