How to Convert HEIC to EXR

OpenEXR is the floating-point HDR format used throughout VFX and film production, storing image data in 16 or 32-bit precision rather than HEIC's 10-bit integer color. While HEIC can capture more color information than standard 8-bit JPG, including gain map data for HDR display rendering on supported screens, it still doesn't carry the kind of unbounded floating-point luminance data that EXR is designed to store for professional compositing and color grading.

Converting an iPhone photo to EXR is mainly useful for bringing reference images or plates into VFX software like Nuke, Blender, or After Effects, which are built around EXR as a native working format, even though the conversion itself doesn't add dynamic range beyond what HEIC originally captured.

1. Install Turbo Batch Image Converter Pro on your Windows PC.
2. Open the app and select Batch Mode for multiple files, or Individual Mode for a single HEIC file.
3. Drag your HEIC file or folder into the app window, enabling recursive folder scanning if needed.
4. Set the "From" format to HEIC and the "To" format to EXR.
5. Click Convert. EXR files are written to the output folder, fully offline.

• 100% offline — your photos are never sent to any server
• Bulk conversion of entire iPhone photo libraries in one pass
• Produces EXR files compatible with Nuke, Blender, Maya, and other VFX software
• Multi-core processing for fast handling of large batches
• Option to delete original HEIC files automatically once converted
• No recurring subscription or hidden upload limits