Convert PNG to WebP
Convert PNG images to WebP format instantly in your browser. WebP delivers 25-35% smaller files than PNG with comparable quality — ideal for web optimization. No upload needed.
Drag 'n' drop files here, or
click to select files
.png
Drop your files and click Convert to get WEBP
//when_to_use
When to Convert PNG to WebP
- Optimizing website images — WebP is 25-35% smaller than PNG, significantly speeding up page load times
- Improving Core Web Vitals scores for SEO by serving lighter images
- Reducing bandwidth costs for image-heavy websites and web apps
- Converting design exports to WebP before uploading to CMS (WordPress, Shopify, etc.)
- Batch optimizing image galleries and product catalogs for e-commerce sites
//comparison
PNG vs WEBP
| Property | PNG | WEBP |
|---|---|---|
| Compression | Lossless (DEFLATE) | Lossy (VP8) or Lossless (VP8L) |
| Typical file size (1080p image) | 2-10 MB | 500 KB - 3 MB |
| Transparency | Supported (alpha) | Supported (alpha) |
| Browser support | All browsers | All modern browsers (Safari 14+) |
| Animation | Not supported | Supported |
| Best for | Graphics, editing | Web delivery, performance |
//how_it_works
How It Works
Drop your PNG files
Drag and drop or select PNG images you want to optimize for the web. Batch processing supported — add as many as you need.
Canvas rendering
Each PNG is rendered onto an HTML Canvas at full resolution, preserving transparency and color accuracy.
WebP encoding via VP8
The browser's native WebP encoder compresses the image using Google's VP8 codec at 80% quality. Files shrink 25-35% compared to the PNG source with minimal visible difference.
Download optimized files
Your WebP files are ready. Use them on your website for faster page loads and better Core Web Vitals scores.
// under the hood
WebP was developed by Google and uses VP8 (lossy) or VP8L (lossless) codecs. Our converter renders the PNG on a Canvas and exports using the browser's native WebP encoder via toBlob with 'image/webp' MIME type at 80% quality. The browser handles the VP8 encoding internally, producing files typically 25-35% smaller than the PNG source.
//faq
Frequently Asked Questions
- What is WebP format?
- WebP is a modern image format developed by Google. It provides superior compression — both lossy and lossless — compared to PNG and JPG. WebP is supported by all major browsers including Chrome, Firefox, Safari, and Edge.
- How much smaller are WebP files?
- WebP images are typically 25-35% smaller than equivalent PNG files with no visible quality difference. For websites, this means faster page loads and lower bandwidth usage.
- Does WebP support transparency?
- Yes! Unlike JPG, WebP fully supports transparency (alpha channel), making it a great replacement for PNG in web projects where you need both small file sizes and transparent backgrounds.
- Is WebP supported everywhere?
- WebP is supported by all modern browsers (Chrome, Firefox, Safari 14+, Edge) and most image editing tools. For older browser support, you can serve WebP with a JPG/PNG fallback using the HTML picture element.
- Are my files private?
- Absolutely. All conversion happens in your browser. Your images are never uploaded to any server. We use client-side WebAssembly technology that runs entirely on your device.
//related_converters
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