EXR to HDR Converter (.exr to .hdr)

Convert OpenEXR High Dynamic Range Image (.exr) files to Radiance RGBE High Dynamic Range Image (.hdr) directly on your device. EXR is commonly used for feature film compositing (nuke, after effects, blender) and linear color-space render passes, while HDR is ideal for 3d rendering environment maps in blender, cinema 4d, unreal engine, and maya. Every conversion runs locally in your browser with zero server uploads.

100% On-Device Processing • Files Never Leave Your Browser (0 KB Uploaded)

Why Convert EXR to HDR Locally?

Unreleased film and VFX frames never leave your local studio workstation. Unlike cloud converters that upload your .exr files to remote servers, Artoons processes your files directly on your device.

How to Convert EXR to HDR

  1. Download the free Artoons Desktop App to enable the native EXR conversion engine.
  2. Drop your .exr files or folders into the queue and select HDR (.hdr).
  3. Click Convert to save your .hdr files locally with no file size limits.

Frequently Asked Questions

Do my EXR files ever get uploaded anywhere?

Never — 100% of the conversion runs locally inside your own device memory with 0 KB sent over the network.

Will EXR to HDR look or sound worse?

Quick heads-up: EXR keeps see-through backgrounds, whereas HDR doesn't — transparent areas get filled with a clean solid backdrop. You can also tweak output quality in Preferences anytime.

How big of a .exr file can I convert here?

Supported via the native ImageMagick pro-image module in the Artoons Desktop App.

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