A .HDR file is a HDR File Format associated with Images. Radiance .HDR format storing floating point luminance values for 3D environment lighting maps.

How do I open a .HDR file on Windows or Mac?

You can open .HDR files using Blender, Photoshop, Unreal Engine, Unity, GIMP. If you do not have native software installed, you can use OpenAnyFile's free File Identifier or convert .HDR to a standard format in your browser.

Is a .HDR file safe to open?

This format carries a safety rating of Low Risk. Starts with ASCII text header #?RADIANCE

Can I convert a .HDR file to other formats?

Yes! .HDR can be converted to formats such as .PNG directly in your web browser.

What should I do if a .HDR file is corrupted or won't open?

If your .HDR file displays an invalid header or signature error, check its magic bytes hex header (Varies) using OpenAnyFile's Magic Byte Detector or follow our step-by-step file repair guide.

How do I open .HDR files?

You can open .HDR files using Blender, Photoshop, Unreal Engine, Unity, GIMP.

Images • MIME: image/vnd.radiance

.HDR – HDR File Format

Radiance .HDR format storing floating point luminance values for 3D environment lighting maps.

Primary Category Images

MIME Type image/vnd.radiance

Magic Bytes Signature Varies

Security Risk Rating Low Risk

Recommended Software to Open .HDR

Blender

windows, mac, linux • Free

Photoshop

windows, mac, linux • Free

Unreal Engine

windows, mac, linux • Free

Unity

windows, mac, linux • Free

GIMP

windows, mac, linux • Free