PNG to WebP

Free PNG to WebP converter - convert in your browser, no upload, no sign-up.

100% free. Runs entirely in your browser - your files and data never leave your device and nothing is uploaded to any server.

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Drop PNG files here or click to upload

Supports multiple files

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About this tool

PNG to WebP is a website-speed conversion. Product photos, hero images and screenshots saved as PNG are often far heavier than they need to be, and WebP keeps transparency while compressing much better - Google's own figures put lossless WebP at roughly a quarter smaller than PNG, and lossy WebP smaller still. Smaller images mean faster pages and better Largest Contentful Paint scores. Expect noticeably smaller files. The WebP is lossy at a quality where photos look identical, though very fine text in screenshots can soften slightly, and transparent areas stay transparent.

How to use this tool

  1. Add your PNGsDrop in product photos, hero images, logos or screenshots - one file or a whole folder.
  2. Compare the sizesEach file shows its PNG and WebP size side by side, so you can see how much you saved.
  3. Upload the WebPsDownload them one by one or as a ZIP and replace the PNGs on your site.

When PNG to WebP makes sense

Keep the original PNG as your master file. Use WebP for publishing, and stay with PNG where software, print shops or email clients may not open WebP.

  • Images on your own website or online shop, where page speed matters.
  • Product cut-outs with transparent backgrounds that need to stay transparent.
  • Screenshots in blog posts and documentation.
  • WordPress and most modern CMSs accept WebP uploads.

Key features

  • Lighter pages and better Core Web Vitals without changing your design.
  • Transparent logos and cut-outs stay transparent.

Common uses

  • Speeding up an online shop.
  • Reducing blog image weight.
  • Keeping transparent logos small on the web.

Tips for better results

  • Keep the original PNGs.
  • Check your CMS accepts WebP before bulk converting.

Mistakes to avoid

  • Deleting the PNG masters.
  • Sending WebP files to print shops.

Supported formats

  • PNG
  • WebP

Frequently asked questions

Yes - WebP supports an alpha channel, so transparent areas stay transparent.

It depends on the image; Google reports lossless WebP around 26% smaller than PNG, and lossy WebP much smaller.

Yes - all current major browsers display WebP.

WebP is a lossy format, so a small amount of detail is discarded. At the quality this tool uses that is invisible on a photograph, but fine text and sharp edges - screenshots especially - can soften slightly.

Files usually come out noticeably smaller, because WebP compresses much harder than PNG.

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