Convert AV1 Image File Format (.avif) to WebP Image (.webp) online for free. Fast, secure image conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .avif file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .webp file when it's ready.
AVIF and WebP are both modern image formats developed for efficient web delivery, but they use different compression technologies. AVIF uses AV1 intra-frame coding (developed by the Alliance for Open Media), while WebP uses VP8 lossy compression or VP8L lossless compression (developed by Google). AVIF generally achieves 20-30% better compression than WebP at equivalent quality, but WebP has significantly broader browser and software support.
Converting AVIF to WebP trades a small compression efficiency loss for much wider compatibility. WebP is supported in all modern browsers (Chrome, Firefox, Safari 14+, Edge), Android natively, and most image editing tools — making it an excellent intermediate format when AVIF support is insufficient but you still want better-than-JPEG compression.
WebP browser support is essentially universal among modern browsers, while AVIF support still has gaps. Safari did not support AVIF until version 16.1, and many content management systems, CDN image pipelines, and social media platforms accept WebP but not AVIF. Converting AVIF to WebP gives you modern compression efficiency with broader platform reach.
WebP is also the default image format for many Android applications and Google services. If your workflow produces AVIF but your distribution channels (Google Ads, Android apps, WordPress sites with WebP plugins) prefer WebP, this conversion bridges the gap with minimal quality loss.
Sharp decodes the AVIF source using its AV1 decoder and re-encodes using libwebp. For lossy WebP, VP8 compression is applied with configurable quality (1-100). For lossless WebP, VP8L compression preserves every decoded pixel exactly. The alpha channel is supported in both lossy and lossless WebP modes. Sharp handles the color space conversion and ICC profile application during transcoding. Progressive decoding is not available in WebP, but the format supports incremental decode natively.
Lossy AVIF-to-WebP transcoding introduces a small amount of additional compression artifacts. At WebP quality 80-90, the visual difference from the AVIF source is negligible for photographic content. Lossless WebP preserves every decoded pixel without additional quality loss but produces larger files. Since AVIF is typically more efficient than WebP, the output WebP file is usually 20-40% larger than the AVIF source at equivalent visual quality.
| Device | AVIF | WebP |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Partial |
| Web Browser | No |
AVIF to WebP conversion sacrifices a small amount of compression efficiency for significantly broader compatibility. WebP is an excellent intermediate format between the cutting-edge AVIF and the legacy JPEG.
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Funguje všude
| Native |
Jakýkoli prohlížeč, jakékoli zařízení
| Vlastnost | AVIF | WebP |
|---|---|---|
| Celý název | AV1 Image File Format | WebP Image |
| Přípona | .avif | .webp |
| Nejlepší pro | Best compression | Superior compression |