MMegaConvert

Convert HEIC to EXR

Free online HEIC to EXR converter. No signup required.

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Max file size: 100 MB

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How to Convert HEIC to EXR

Follow these simple steps to convert your file in seconds.

  1. 1

    Upload your .heic file

    Drag and drop your .heic file into the upload area, or click "Browse" to select it from your device. Your file is uploaded securely and processed on our servers.

  2. 2

    Click "Convert to EXR"

    Once your file is uploaded, press the convert button to start the HEIC to EXR conversion process.

  3. 3

    Wait for the conversion to complete

    The conversion usually takes just a few seconds. You can see the progress in real time while your file is being processed.

  4. 4

    Download your converted .exr file

    When the conversion is finished, click the download button to save your new .exr file. The file is ready to use immediately.

Understanding HEIC and EXR Formats

Learn about the source and target file formats to understand what happens during conversion.

Source Format

HEIC Image

image/heic

HEIC (High Efficiency Image Container) is a container format based on the HEIF standard that stores images compressed with the HEVC (H.265) codec. It is the default photo format on Apple devices running iOS 11 and later, offering roughly 50% file size reduction compared to JPEG at similar quality. HEIC supports advanced features including image sequences, depth maps, and auxiliary data.

Advantages

  • Approximately 50% smaller file sizes compared to JPEG at equivalent quality
  • Supports 16-bit color depth, alpha transparency, and depth maps
  • Can store multiple images, live photos, and burst sequences in a single file

Limitations

  • Limited support on Windows and Android without additional codecs
  • HEVC codec is subject to patent licensing requirements
  • Not supported by most web browsers for direct display

Common Uses

  • Default photo format on iPhones and iPads
  • Space-efficient photo storage on Apple devices
  • Live Photos and burst sequences on iOS

Target Format

OpenEXR Image

image/x-exr

OpenEXR is a high dynamic range raster image format developed by Industrial Light & Magic for use in visual effects and motion picture production. It supports 16-bit and 32-bit floating-point pixels, multiple compression methods, arbitrary image channels, and multi-part files. OpenEXR is the industry standard for storing intermediate and final rendered frames in VFX pipelines.

Advantages

  • Industry-standard 16-bit and 32-bit floating-point precision for VFX work
  • Supports an arbitrary number of named channels and deep image data
  • Multiple lossless and lossy compression options including PIZ and DWAA

Limitations

  • Large file sizes even with compression, especially for 32-bit data
  • Not supported by web browsers or most consumer image viewers
  • Complex format specification requires specialized libraries to read and write

Common Uses

  • Visual effects compositing and intermediate renders in film production
  • 3D rendering output for lighting and shading passes
  • HDR image storage for professional color grading and post-production

Frequently Asked Questions

Common questions about converting HEIC to EXR.

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