How to convert AVIF to HDR
To convert AVIF to HDR, upload your AVIF file, choose HDR as the output format and press Convert. The finished HDR file is ready to save to your phone or computer in seconds, free, with no watermark and no sign-up. Your file is deleted from our server about 30 minutes after the conversion.
This free online converter changes AVIF images into HDR files in seconds, with no software to install and no watermark. You can convert several files at once, resize them and choose the quality for formats that support it. Metadata such as location tags is removed from the output for privacy.
Why convert AVIF to HDR?
- High dynamic range in a compact encoding
- Standard for environment maps
- Simple format
- Works with: Blender, Photoshop, Unity, Unreal and Radiance tools
What to expect from this conversion
- HDR has no transparency, so transparent areas are filled with a background colour. White by default, and you can choose another colour in the options.
- HDR cannot store animation here, so only the first frame of an animated AVIF is saved.
- HDR stores light in linear floating-point values, so your pixels are converted from sRGB to linear. The result looks the same in an HDR-aware viewer but does not gain real dynamic range.
- Browsers do not display HDR files, so use it in editors, print workflows or development tools rather than on a web page.
AVIF vs HDR
| Property | AVIF | HDR |
|---|---|---|
| Full name | AV1 Image File Format | Radiance RGBE |
| Released | 2019, Alliance for Open Media | 1989, Greg Ward (Radiance) |
| Compression | Lossy or lossless | None (uncompressed) |
| Transparency | Yes | No |
| Animation | Yes | No |
| Bit depth | 8, 10 or 12-bit | 32-bit shared exponent |
| Shown in browsers | Yes | No |
| Best for | performance-focused websites; high-quality photos at tiny sizes | 3D lighting and HDRI skies; image-based lighting |
Steps to convert AVIF to HDR
- Drop your AVIF image file onto the converter, or click to choose it.
- Check that HDR is selected as the target and adjust the options if you want.
- Press Convert, then download your new HDR file when it finishes.
Tips for the best result
- Use quality 80 to 90 for photos: it is visually close to the original at a much smaller size.
- Set a width if the image will be shown on a small screen, which also reduces the file size.
- Choose a background colour before converting transparent images to a format without transparency.
Frequently asked questions
How do I convert AVIF to HDR?
Drop your AVIF files on the converter, confirm that HDR is the target and press Convert. Download each file or the whole batch as a ZIP.
Is the AVIF to HDR converter free?
Yes. It is free with no watermark, no sign-up and no limit on how many images you convert. The site is supported by ads.
Does converting AVIF to HDR reduce quality?
HDR has no transparency, so transparent areas are filled with a background colour. White by default, and you can choose another colour in the options. The quality slider only affects formats that use lossy compression.
Will transparency be kept when I convert AVIF to HDR?
HDR does not support transparency, so transparent areas are filled with your chosen background colour (white by default).
Which programs open HDR files?
HDR files open in Blender, Photoshop, Unity, Unreal and Radiance tools.
How many images can I convert at once?
Up to 20 images per batch, each up to 60 MB. Files are deleted from the server about 30 minutes after conversion.