HDRI Viewer
Open .hdr and .exr environment maps in 360°, adjust exposure, rotation and tone mapping, check reflections on probe spheres and export a PNG preview.
100% local: your files never leave your browser
Drop an HDRI
Look around it in 360°, adjust exposure and rotation, check reflections.
sample-sky · 1024×512 px · Drag to look around.
HDRI
Display
Export
Exports a tone-mapped 8-bit equirectangular PNG (with your exposure and rotation), handy for thumbnails, backplates or lightweight previews.
About the HDRI Viewer
This free HDRI viewer opens Radiance .hdr and OpenEXR .exr environment maps directly in your browser. Look around in 360° or view the full equirectangular image, adjust exposure in EV stops, rotate the environment, compare ACES, AgX and Neutral tone mapping, and see how the light reflects on chrome, grey and white probe spheres. Peak and average luminance help you judge the sun strength before using the HDRI in RenderMan, Arnold, Blender or Unreal.
FAQ
Can it open EXR files?
Yes, both .hdr (Radiance RGBE) and .exr (OpenEXR) equirectangular maps are supported, as well as JPG/PNG panoramas.
What does the PNG export contain?
A tone-mapped 8-bit equirectangular image with your exposure and rotation, useful for thumbnails, backplates or previews. It is not an HDR file.
Are my HDRIs uploaded?
No. Everything runs locally in your browser with WebGL; your files are never uploaded to a server.