Convertir PNG en WebP en ligne gratuitement
Convertissez vos PNG en WebP environ 30% plus légers, sans perte visible. 100% dans le navigateur, aucun envoi.
Formats supportés : JPG/JPEG/PNG/WEBP/GIF/SVG/AVIF/HEIC/HEIF
Déposez vos images — tout reste sur votre appareil
Fonctionnalités
About 30% smaller
WebP uses a more modern compression algorithm, typically 25–35% smaller than PNG at the same quality.
Alpha channel preserved
Transparent areas are fully retained instead of being flattened to black like JPG.
Batch conversion
Drop in many PNGs or a whole folder, then download the results as a ZIP.
Cas d'usage
Web icons and sprites
Converting PNG sprites to WebP speeds up first paint while keeping transparency.
App icons and UI assets
Ship smaller assets to reduce bundle size and bandwidth usage.
FAQ
Does converting PNG to WebP lose quality?
Not noticeably. WebP supports both lossy and lossless modes; at 85% quality the result is visually identical to the original. Use 100% quality for guaranteed lossless output.
Are my images uploaded to a server?
No. Conversion runs locally in your browser via WebAssembly. Your images never leave your device.
Is WebP supported everywhere?
WebP works in Chrome, Edge, Firefox and Safari 14+, covering over 97% of browsers.