MMegaConvert

Convert RAW to HDR

Free online RAW to HDR converter. No signup required.

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Max file size: 100 MB

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How to Convert RAW to HDR

Follow these simple steps to convert your file in seconds.

  1. 1

    Upload your .raw file

    Drag and drop your .raw 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 HDR"

    Once your file is uploaded, press the convert button to start the RAW to HDR 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 .hdr file

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

Understanding RAW and HDR Formats

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

Source Format

Raw Image Data

application/octet-stream

RAW is a general term for unprocessed image data files captured directly from a camera's image sensor, though the .raw extension itself is sometimes used as a generic raw container. Different camera manufacturers use various proprietary raw formats, but files labeled .raw contain minimally processed sensor data preserving maximum detail and dynamic range. These files require specialized software to develop into viewable images.

Advantages

  • Contains the maximum possible image data from the camera sensor
  • Provides full control over white balance, exposure, and color in post-processing
  • Much higher dynamic range than processed JPEG output

Limitations

  • Generic .raw extension can cause compatibility issues with software detection
  • Very large file sizes compared to processed image formats
  • Cannot be displayed directly without raw processing software

Common Uses

  • Generic raw image capture from various camera systems
  • Raw image data from scientific and industrial imaging sensors
  • Intermediate data storage in image processing workflows

Target Format

Radiance HDR Image

image/vnd.radiance

HDR (High Dynamic Range) Radiance format, also known as RGBE, stores images with a high dynamic range of luminance values using a run-length encoded format. Developed by Greg Ward for the Radiance lighting simulation system, it encodes each pixel as three 8-bit mantissas and a shared 8-bit exponent. HDR images capture a much wider range of brightness than standard 8-bit formats.

Advantages

  • Captures a wide dynamic range of lighting from very dark to very bright
  • Relatively compact encoding for high dynamic range data
  • Widely supported in 3D rendering, game engines, and compositing software

Limitations

  • Lower precision than 32-bit EXR for demanding visual effects work
  • Not suitable for direct display without tone mapping
  • Limited to RGB data with no alpha channel support

Common Uses

  • Environment maps and image-based lighting in 3D rendering
  • HDR photography merging and tone mapping workflows
  • Lighting simulation and architectural visualization

Frequently Asked Questions

Common questions about converting RAW to HDR.

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