PNG to WebP converter
PNG is lossless but bulky for the web. WebP supports transparency and often delivers much smaller files for logos, icons, and illustrations. Convert PNG assets locally before deploying to production.
How to convert PNG to WebP
1. Upload your PNG (with or without alpha).
2. Choose lossy or lossless WebP settings if offered.
3. Compare output size to the original PNG.
4. Download the WebP file.
Examples
Logo on marketing site
A 120 KB PNG logo may become a 40 KB WebP with identical transparency — faster header loads.
Game sprite sheet
Flat-color sprites compress aggressively in WebP lossless mode compared to PNG.
App store graphics
Replace large PNG screenshots in bundled assets where the runtime supports WebP.
When PNG to WebP helps
• When you need alpha transparency on the web with smaller bytes.
• When migrating PNG-heavy frontends to modern formats.
• When Lighthouse flags oversized PNG assets.
When to keep PNG
• When target environments only accept PNG (some email and PDF pipelines).
• When designers need universal lossless editing interchange.
• When Safari-on-old-iOS support is a hard requirement without fallbacks.
PNG vs WebP for UI assets
Designers export PNG out of habit. For production web, WebP with transparency frequently halves transfer size. Automate conversion in CI or use this tool for ad-hoc assets.
Fallback strategies
Use picture/source sets: WebP first, PNG second. Or detect support server-side via Accept headers. Do not serve WebP to clients that cannot decode it.
Editing workflow
Keep PNG masters in design repos. Generate WebP for deploy artifacts only — reverting edits is easier from lossless PNG sources.
Frequently asked questions
Is transparency preserved?
Yes — WebP supports an alpha channel similar to PNG.
Lossless or lossy WebP?
Graphics with flat colors often suit lossless WebP. Photos embedded in PNG may use lossy WebP for smaller size.
Will colors shift?
Lossless mode should match PNG exactly. Lossy mode may show slight differences in gradients.
Can I use WebP in CSS background-image?
Yes in all modern browsers. Provide PNG fallback only if analytics show legacy traffic.
Local processing?
Yes — files never leave your browser.
Better than SVG?
For simple logos, SVG is often smallest and scales infinitely. WebP suits raster artwork and photos with alpha.