PNG to WEBP Converter – Convert PNG to WEBP Online Free
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PNG to WEBP Converter

Convert PNG images to WEBP format online for free. WEBP delivers smaller file sizes than PNG while maintaining excellent visual quality and supporting full transparency — the ideal format for modern web images.

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PNG to WEBP Converter

Use this converter when you're optimising images for a website and want to reduce page load times. WEBP is supported by all major browsers and produces files significantly smaller than both PNG and JPG at comparable quality levels.

Drag & drop your file here

or click to browse from your computer

Accepted: .png
filename
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About the PNG to WEBP Converter

WEBP is a modern image format developed by Google that uses both lossy and lossless compression algorithms. In lossless mode, WEBP files are typically 25–35% smaller than equivalent PNG files. In lossy mode, WEBP can be 60–80% smaller than PNG while maintaining visually comparable quality. Crucially, WEBP supports alpha-channel transparency, which means you don't lose that capability when moving from PNG.

When to use this tool

Use this converter when you're optimising images for a website and want to reduce page load times. WEBP is supported by all major browsers and produces files significantly smaller than both PNG and JPG at comparable quality levels.

Common use cases

Web performance optimisation Replace heavy PNG images on a website with WEBP to reduce bandwidth usage and improve Core Web Vitals scores.
Next-gen image formats for SEO Google recommends WEBP as a next-gen image format in Lighthouse and PageSpeed Insights — convert PNGs to comply.
Transparent web graphics Convert PNG logos and icons to WEBP for smaller files while preserving the transparency that makes them work on any background.
E-commerce product images Reduce product image file sizes across a store without sacrificing the visual quality customers need to make purchasing decisions.

How to convert your file

  1. Drag your file into the upload box above, or click the area to browse your device.
  2. Confirm the filename and size appear correctly in the preview.
  3. Click Convert Now and wait a few seconds while we process.
  4. Use the green download button to save your converted file.

Tips for best results

  • WEBP transparency is fully supported — your transparent PNG background will be preserved in the WEBP output.
  • Not all older software (like older versions of Photoshop without plugins) can open WEBP files. If you need to edit the image later, keep a PNG copy.
  • For web use, WEBP is almost always the best format choice — it outperforms both JPG and PNG for size and quality.

FAQs

WEBP lossless compression typically produces files 25–35% smaller than PNG for the same image. At similar visual quality, lossy WEBP can be 60–80% smaller, though this introduces some compression.

Yes. WEBP has full alpha-channel transparency support. When you convert a PNG with a transparent background to WEBP, the transparency is preserved.

WEBP is supported by Chrome, Firefox, Safari (version 14+), Edge, and Opera — covering over 95% of web users globally. Very old browsers (IE, old Safari) do not support it, so for maximum compatibility on legacy systems, PNG or JPG is safer.

Yes — use the WEBP to PNG converter on this site to convert back. If you need to edit the image later, it's good practice to keep your original PNG file.

The default conversion uses high-quality settings. For lossless conversion, quality is identical to the source. Slight softening can occur with lossy WEBP compression, but it is minimal at the quality level used by this tool.

Related converters

WEBP to PNG Converter JPG to WEBP Converter PNG to JPG Converter
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