HDR to AVIF — Online Image Converter
Convert HDR to AVIF online. Private, client-side — no uploadrequired. Fast batch converter.
About HDR to AVIF
Convert HDR to AVIF. HDR (Radiance RGBE) stores high-dynamic-range lighting with 32 bits per pixel. AVIF encodes stills and sequences with the AV1 codec for compact files. Older viewers may not open it; keep a JPEG or PNG copy for sharing..
Why convert HDR to AVIF?
- Flexible size with AVIF lossy or lossless compression - lossy for smaller files, lossless for exact quality.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
HDR vs AVIF
| Animation | No | Yes |
|---|---|---|
| Transparency | No | Yes |
| Compression | lossless high dynamic range | lossy or lossless |
| Typical use | HDR (Radiance RGBE) stores high-dynamic-range lighting with 32 bits per pixel. | AVIF encodes stills and sequences with the AV1 codec for compact files. |
When not to convert HDR to AVIF
- Skip AVIF for archival masters: lossy compression discards detail, so keep the HDR original.
- No motion to preserve: HDR is a still, so pick AVIF for size or compatibility rather than animation.
Limits
Starting point: HDR - HDR (Radiance RGBE) stores high-dynamic-range lighting with 32 bits per pixel. Tone mapping compresses highlights into display range on export. Older viewers may not open it; keep a JPEG or PNG copy for sharing. Set the quality slider near 80-90 for AVIF photos from HDR, and keep dimensions matched to the source.
How conversion works
Conversion runs entirely in your browser with the WASM image engine. Files never leave your device.