ResizeImages.online

PNG to WebP

Convert PNG images to WebP format for smaller files without losing transparency.

Technical Specifications

Supported Formats:
PNGWebP
File Size Limit: Up to 50 MB per file (processed directly in browser memory)
Security: 100% In-Browser (No Cloud Uploads)

How to Convert PNG to WebP

  1. Select or drag your PNG image into the tool.
  2. Let it load.
  3. Adjust quality/compression settings if available.
  4. Click convert.
  5. Download the WebP file.

What Is PNG to WebP Conversion?

PNG is a widely used, lossless image format, common for logos, icons, screenshots, and any graphic that needs a transparent background. WebP is a newer format that generally compresses more efficiently than PNG while still supporting transparency, making it a better fit for publishing images on the web.

Converting PNG to WebP is typically done to shrink image file sizes for a website or app without giving up transparency — something converting to JPG can't do.

Why Convert PNG to WebP?

  • Smaller files for the web — WebP typically produces noticeably smaller files than PNG for the same image, speeding up page loads.
  • Transparency kept — unlike JPG, WebP supports transparent backgrounds, so logos and icons convert cleanly.
  • Page speed scoring — tools like Lighthouse and PageSpeed Insights commonly flag large PNGs and suggest converting to a modern format like WebP.
  • Good for graphics and photos alike — WebP handles both flat-color graphics and photographic images reasonably well.

PNG vs WebP

Feature PNG WebP
Compression Larger, lossless Generally smaller, lossy or lossless
Transparency Supported Supported
Browser Support Universal All modern browsers
Typical Use Logos, icons, screenshots Web pages, app assets
Best For Maximum compatibility with older software Publishing on the modern web

The size reduction from PNG to WebP depends heavily on the image — flat-color graphics and photos compress differently, so treat any specific percentage as a general expectation rather than a guarantee.

Are My Images Uploaded?

This tool processes your PNG locally in your browser rather than sending it to a server, so no account or upload wait is needed.

Frequently Asked Questions

What is WebP?

WebP is a modern image format from Google designed to keep file sizes small for web use while supporting both photos and transparent graphics.

Why convert PNG to WebP?

Mainly to reduce file size for faster-loading websites, without losing the transparency that PNG offers.

How do I convert PNG to WebP?

Upload your PNG file above, adjust quality if the option is available, and download the WebP result.

Is WebP smaller than PNG?

In most cases, yes — often significantly, especially for photographic images.

Does WebP support transparency like PNG?

Yes, WebP supports alpha transparency the same way PNG does.

Can I use WebP on my website safely?

Yes, for modern audiences. If you need to support very old browsers, keep a PNG or JPG fallback available.

Are my images uploaded to a server?

No — conversion happens locally in your browser.

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