What file formats do you support?

We support over 100 file formats including images (JPG, PNG, GIF, WebP, TIFF), documents (PDF, DOC, DOCX, TXT), videos (MP4, AVI, MOV), audio (MP3, WAV, FLAC), and many more specialized formats.

Yes, absolutely. We use enterprise-grade encryption for all file transfers. Your files are automatically deleted from our servers after conversion, and we never store or access your personal data.

What is the maximum file size?

The maximum file size for free users is 100MB per file. Premium users can convert files up to 1GB. For larger files, we recommend our batch processing feature.

How long does conversion take?

Most files convert in under 30 seconds. The exact time depends on file size and format complexity. Our advanced algorithms ensure the fastest possible conversion while maintaining quality.

Can I convert multiple files at once?

Yes! Our batch processing feature allows you to upload and convert up to 50 files simultaneously. This is perfect for bulk conversions and saves significant time.

Do I need to create an account?

No account is required for basic conversions. However, creating a free account gives you access to batch processing, file history, and priority support.

HEIC to EXR

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

HEIC (Max. 10MB) • Up to 5 files in guest mode

Choose Files

Or upload from:

Temporary file processingFiles are uploaded for processing and are not retained as permanent storage. Read our File Processing & Retention Policy.

2. Conversion Settings

Convert From

Convert To

Image options

Width (px)

Height (px)

Strip image metadata (EXIF, etc.)

Advanced Options

Quality

Instant download after conversion

Why Choose Our Converter?

Fast, reliable HEIC to EXR conversion tailored for photographers and visual effects professionals.

Optimized for Photographers

Quickly move HEIC smartphone captures into EXR for professional HDR and compositing workflows.

High Dynamic Range Ready

Export to EXR to preserve extended tonal headroom and reduce clipping during grading.

Wide Toolchain Support

Create EXR files compatible with Nuke, Houdini, Blender, and most color-graded pipelines.

Preserve Alpha Where Possible

If HEIC contains an alpha plane, we retain transparency into single-layer EXR when available.

Local, Client-Side Processing

Conversions happen in-browser memory buffers to minimize external file transfer risks.

Batch-Friendly Output

Handle large sets of HEIC photos and produce packed or multi-file EXR outputs efficiently.

Frequently Asked Questions

Find answers to common questions about our file conversion service

Still have questions?

Can't find the answer you're looking for? Our support team is here to help.

Performance Estimates

Estimated conversion times based on typical hardware.

Conversion Speed Benchmarks

1-3 seconds

12 MP image processing

12 MP, 4000x3000

Fast

3-6 seconds

24 MP image processing

24 MP, 6000x4000

Moderate

8-15 seconds

48 MP image processing

48 MP, 8000x6000

Slow

Batch Conversion Estimates

Batch Size	Total Time	Avg per Image	Efficiency
10 images (12 MP each)	20-40 seconds	2-4 seconds	High
50 images (12 MP each)	1.5-3 minutes	1.8-3.6 seconds	High
100 images (12 MP each)	3-6 minutes	1.8-3.6 seconds	Moderate
200 images (12 MP each)	6-12 minutes	1.8-3.6 seconds	Moderate

Browser Compatibility

Format support across all major browsers

Support Across Browsers

Chrome

Supported

Full Support

Firefox

Supported

Full Support

Safari

Supported

Full Support

Edge

Supported

Full Support

Advanced Format Features Support

Features	Chrome	Firefox	Safari	Edge
Alpha Channel
ICC Profiles
EXIF Metadata
16-bit Depth

Device Compatibility

Seamless conversion across desktop, mobile and tablet

Desktop

Fast multi-core processing
Batch upload support

Mobile

Responsive mobile browser workflow
Instant photo conversion

Tablet

Full tablet browser support
Touch-friendly interface

Source vs Target Format

Key technical differences between formats

Feature	Source Format	Target Format
Compression	High efficiency	Uncompressed
File Size	Small	Large
Quality	High (compressed)	Lossless
Transparency	Supported	Supported
Metadata	EXIF, ICC	EXIF, ICC
Primary Use	Web delivery	Editing & print

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your source files.

Adjust Settings

Choose resolution or color options if needed.

Convert

Click convert to process files locally in browser.

Download Result

Save your converted files or ZIP archive.

Ready to Convert Your Files?

Use our high-speed converter to process your images now.

Start Converting Now

Tips and Best Practices

Optimize your conversion workflow with technical recommendations.

Prepare HEIC Source

Verify HEIC bit depth and whether the file was encoded with 10-bit HEVC to anticipate tonal expansion in EXR
Extract Live Photo frames or burst images first, since the converter flattens multi-frame HEIC into single EXR files
Check for proprietary depth maps or aux data in HEIC; extract separately because they are not embedded into standard EXR outputs
Confirm if HEIC alpha is premultiplied; note premultiplied alpha requires de-premultiplication before compositing in EXR
Use original camera HEICs rather than recompressed exports to avoid compounded compression artifacts in the EXR conversion

Configure EXR Output

Select float channel types (half or full) in downstream EXR settings to preserve expanded dynamic range from HEIC
Choose EXR compression (PIZ, ZIP) in your compositor to balance file size versus lossless integrity after conversion
Add an explicit color space transform from HEIC ICC to scene-linear when writing EXR to maintain grading headroom
For compositing, include a dedicated alpha channel in EXR to map HEIC transparency instead of baking into RGB
When long-term archiving, store an uncompressed or lossless-compressed EXR alongside original HEIC for provenance

Verify in Your Toolchain

Open converted EXR in Nuke or Blender and inspect histograms to confirm linearization from HEIC is correct
Compare EXIF camera timestamps and lens data between HEIC and produced EXR to ensure metadata needed for cataloging was retained
Validate color by toggling embedded ICC or applying LUTs; some HEIC color spaces require manual profile assignment post-conversion
Check alpha edges at 100% zoom for any residual compression halos introduced by HEVC decoding
Run a sample batch through your VFX pipeline to confirm that EXR channel naming and ordering meet render expectations

Pipeline Reliability

Process batches of 20–50 HEICs to keep browser memory stable and avoid intermediate crashes during EXR generation
Close unrelated browser tabs and free system RAM to reduce the risk of memory-based conversion failures for large HEIC files
Keep originals and converted EXRs until checksums and visual QA confirm successful conversion and metadata integrity
If your workflow requires deep data, plan for specialized tools since standard HEIC to EXR conversion flattens auxiliary depth tracks
Automate filename mapping to preserve sequence ordering when converting numbered HEIC bursts into single EXR assets

Fast Processing

Close unused tabs for maximum throughput.

Client-Side Privacy

No media leaves your device.

Broad Compatibility

Output files work across all operating systems.

Pro Tip

For batch conversions, process in groups of 20-50 files to optimize memory usage and avoid browser slowdowns.

Explore related conversion tools for image workflows

Related Conversion Tools

Explore our complete suite of image conversion tools. From basic format changes to advanced optimizations, we have everything you need for your image processing workflow.

Best Match