PixConvertBlogPNG to WebP›Lossless
PNG to WebP — Lossless, No Quality Loss
Convert PNG to WebP at maximum quality — every pixel preserved. Lossless WebP is typically 26% smaller than PNG with zero visual difference.
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Lossless vs lossy WebP — when to use each
Use lossless WebP for:
- Logos and brand assets (sharp edges must stay sharp)
- UI icons and illustrations
- Screenshots and text-heavy images
- Images requiring pixel-perfect accuracy
Use lossy WebP for:
- Photographs (much smaller files, barely visible loss)
- Hero images and product photos
- Any image where 25-35% size reduction matters
- Background images viewed at small sizes
Quick size comparison (typical results):
Frequently Asked Questions
What is lossless WebP?
Lossless WebP compresses images without discarding any pixel data — the decoded image is bit-for-bit identical to the original. It uses a more efficient algorithm than PNG's DEFLATE compression, resulting in files typically 26% smaller than equivalent PNGs.
How is lossless WebP different from lossy WebP?
Lossless WebP preserves every pixel exactly — ideal for graphics, logos, and UI elements with sharp edges. Lossy WebP (the default) discards some detail for much smaller files — ideal for photos. Both support transparency.
Does lossless PNG to WebP preserve transparency?
Yes. Both lossless and lossy WebP support full alpha transparency. Your PNG's transparent areas will be perfectly preserved in the WebP output.
Will lossless WebP always be smaller than PNG?
Lossless WebP is typically 26% smaller than PNG on average, but results vary by image content. For already-optimized PNGs or images with very simple content, the savings may be smaller. For complex images and photos-saved-as-PNG, savings are usually significant.