Convert HEIC to EXR

Convert HEIC files to EXR locally, completely free and with maximum privacy.

Drag and drop your files here

or click to browse local files (large files supported, limited only by browser RAM)

Upload Files

Platform Statistics

---
Files Converted
---
Data Processed
---
Unique Sessions
---
Avg. Conversion Time
Sponsored:Want to reach thousands of developers, designers, and creators daily? Sponsor this spot! Contact ads@gregorium.com for details. Learn more

How to convert HEIC to EXR

  1. Drop your .heic files above, or click Upload Files. You can add many files at once.
  2. EXR is already selected as the output. Open the settings (gear icon) to fine-tune the result.
  3. Click Convert All. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
  4. Download your .exr files as soon as each one finishes.

What to know about HEIC to EXR conversion

  • HEIC photos from iPhone and Android are decoded locally; your photos are never uploaded to a server.
  • EXR supports both lossy and lossless compression and typically produces smaller files than older formats at the same visual quality.
  • Transparency is preserved: EXR supports an alpha channel just like HEIC.
  • EXR is best for high-dynamic-range renders and VFX compositing, and opens in Blender, Nuke, After Effects and Photoshop.

HEIC vs EXR

FeatureHEIC (High Efficiency Image Container)EXR (OpenEXR)
Compressionlossylossy or lossless
TransparencyYesYes
AnimationNoNo
Best forphotos taken with iPhones and recent Android phoneshigh-dynamic-range renders and VFX compositing
Opens inApple devices, and Windows with the HEIF extensionsBlender, Nuke, After Effects and Photoshop

HEIC (High Efficiency Image Container): The default photo format on iPhones and many Android devices, based on the HEVC codec.

EXR (OpenEXR): A high-dynamic-range image format developed by Industrial Light & Magic for use in computer imaging and visual effects.

Conversion options

  • Resize by width, height or both (aspect ratio is preserved)
  • Filters: grayscale, sepia, blur and sharpen
  • Custom output file name

Frequently asked questions

Is it safe to convert HEIC to EXR here?

Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.

Is there a file size limit?

There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.

Can I convert several HEIC files at once?

Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.

Related conversions