PNG to WebP Converter

1. Upload one or more PNG files (up to 50 MB total).
2. Click 'Convert to WebP' — finishes in under 2 seconds per image.
3. Download WebP files individually, or grab all as a ZIP.

WebP supports transparency like PNG but produces files 25-35% smaller for photographs and 5-15% smaller for graphics. It's the modern standard for web images, supported by every browser since 2020.

PNG is lossless and supports transparency, but its DEFLATE compression is dated. WebP delivers the same transparency support with more efficient compression — 25-35% smaller for photographs and 5-15% smaller for graphics. Since every browser has supported WebP since 2020, converting PNG to WebP improves page load times and reduces bandwidth costs without sacrificing quality or transparency.

The converter decodes the PNG image and re-encodes it as WebP using libwebp. For photographs, lossy WebP at 85% quality produces files 25-35% smaller. For graphics, WebP's lossless mode preserves every pixel. PNG's 8-bit alpha channel is preserved as WebP's 8-bit alpha.

• Optimizing website images for faster page loads (LCP).
• Reducing bandwidth costs for image-heavy sites.
• Preparing PNG assets for CDN delivery.
• Converting photos to a modern web format.
• Reducing PNG logo file size while keeping transparency.
• Preparing PNG images for e-commerce platforms.
• Improving Core Web Vitals scores with smaller images.

WebP output uses 85% quality for photographs — visually indistinguishable from the source PNG at normal viewing distances. For graphics, WebP's lossless mode preserves every pixel. Transparency is preserved. Best format for modern web delivery: smaller files, same visual quality.

• Very old software (pre-2015) may not support WebP.
• Some CMS platforms (pre-2018) reject WebP uploads.
• Very simple PNG icons may not shrink dramatically.
• Animated PNG (APNG) is converted using only the first frame.
• WebP is not supported by Photoshop versions before 23.

• WebP opens natively in every browser since 2020.
• Native support in Windows 10+, macOS Big Sur+, iOS 14+, Android 4+.
• Supported by WordPress 5.8+, Shopify, Squarespace, Wix, Ghost.
• Native import in Photoshop 23+, GIMP 2.10+, Affinity, Figma.
• Ideal for CDN delivery via Cloudflare, CloudFront, Akamai.

• WebP preserves PNG transparency — good for logos and UI.
• For modern web, WebP is the standard over PNG.
• Serve WebP with PNG fallback for very old browsers.
• For maximum compression with modern browser support, also consider AVIF.
• Batch-convert up to 50 MB of PNG files at once.

WebP won't open in Photoshop CS6

Photoshop CS6 predates WebP. Use Photoshop 23+ or convert WebP to PNG first.

WebP file is barely smaller than PNG

Simple PNG files (icons, flat graphics) may already be highly optimized. WebP's advantage is strongest for photographs.

Some CMS platforms reject WebP uploads

Update your CMS to WordPress 5.8+ or install a WebP plugin. For very old platforms, use PNG instead.

• Google Developers — WebP
• W3C — PNG Specification