AVIF
AV1 Image FileUsed for high-efficiency modern images.
- Family
- Images
- MIME
- image/avif
Convert AVIF to JPG online. See the real transparency flattening and image encoding behavior, preservation limits, and a format-specific acceptance test.
Decoding AVIF exposes a pixel canvas whose alpha then gets composited against an opaque background before JPG encoding. Because that transparency cannot be recovered afterward, edge color has to be judged against the real destination background. AVIF reading selects the primary AV1 image item and follows its color, alpha, depth, gain-map, transform, and sequence relationships inside the container. JPG output is always opaque and lossy, so judge it at high-contrast edges, gradients, fine texture, orientation, and any damage accumulated from repeated encoding.
Canvas decoded from a high-efficiency AV1-derived still image with HDR and alpha capabilities. Image written as lossy JPEG-compressed pixels optimized for photographs and broad compatibility.
Used for high-efficiency modern images.
Designed for photos and compact web images.
JPG wins this route whenever its specific mix of compatibility, alpha, animation, and file size fits the destination better than AVIF does.
Older apps may not decode AVIF, and aggressive encoding can smear fine texture despite a small file.
Repeated encoding introduces ringing or blocks, and transparent areas must become opaque.
lossy JPEG-compressed pixels optimized for photographs and broad compatibility is what gets written, labeled as image/jpeg. Whether that actually opens depends on the receiving application, not on the file extension.
Inspect gradients and texture at 100% and open the file on the oldest required device.
View text edges, faces, gradients, and high-contrast detail at the intended display size.