HEIC to EXR for Image Workflows
Fast, instant HEIC to OPENEXR conversion. No signup required. Just drop your .heic file and get .exr in seconds.
Batch Settings
Generation loss — quality may degrade
HEIC uses lossy compression and EXR typically uses lossy mode. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
Animation frames will be lost
HEIC supports animation, but EXR does not. Only the first frame (or a representative frame) will be preserved. If you need animation, consider converting to WebP or GIF instead.
Some metadata may not survive
Your HEIC file may contain EXIF, XMP metadata. EXR has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
Default format on iPhone 7+ (iOS 11+)
Your device saves files in HEIC by default (iPhone 7+ (iOS 11+), iPad Pro 2017+, macOS High Sierra+). Most people convert because the files won't open on other devices — EXR is universally supported and will work everywhere.
您是否曾遇到这样的情况：手机里珍藏的HEIC照片，想要在专业软件中进行后期处理，或者用于游戏纹理、电影特效等高性能图形项目时，却发现格式不兼容？HEIC以其高效的压缩比在移动设备上广受欢迎，但对于需要无损画质、高动态范围（HDR）支持以及多层数据存储的专业工作流程而言，EXR（OpenEXR）才是更理想的选择。将HEIC转换为EXR，不仅能保留图像最丰富的细节和色彩信息，更为您的创作与分享扫清了障碍。我们的转换工具旨在为您提供一个便捷、高效的解决方案，让您的视觉作品在不同平台间自由流转，发挥其最大价值。
- 微信朋友圈高画质分享
- 手游贴图纹理制作
- 电影后期特效合成
在中国大陆和台湾地区，HEIC格式在苹果设备用户中普及，但其在非苹果生态系统（尤其是Windows平台及部分专业图形软件）中的兼容性仍有待提升。转换为EXR能有效解决跨平台协作时的格式壁垒，尤其在需要高精度图像数据的游戏开发和影视制作领域。
About HEIC to OPENEXR Conversion
Whether you're one of the many photographers, designers, and content creators who work with HEIC files daily, there comes a time when you need EXR instead. HEIC (High Efficiency Image Container) is Apple's format for iPhone photos, offering twice the compression of JPEG.
Here's a typical scenario: you receive a .heic file but your project, platform, or client requires .exr. EXR (OpenEXR) is a high-dynamic-range format used in VFX, film, and 3D rendering pipelines. Rather than searching for desktop software or wrestling with command-line tools, you can convert HEIC to EXR online in seconds with CocoConvert.
This conversion is ideal when you Your HEIC file won't open on a recipient's device or in an application, or when you A website, service, or platform only accepts EXR uploads. The conversion helps you improve file compatibility across devices.
HEIC uses lossy compression and EXR typically uses lossy mode. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible. Common misconception: ""My animated HEIC will stay animated after conversion"" — in reality, exr does not support animation. only a single frame will be saved. use webp or gif to preserve animation.
Behind the scenes, CocoConvert uses industry-standard tools — FFmpeg for audio and video, Sharp for images, qpdf for documents. Your file is uploaded securely (TLS encryption), processed on isolated servers in Germany, and auto-deleted within 24 hours. No account, no watermark, no hidden fees.
Power users can batch convert up to 100 files simultaneously with a Pro subscription, making it practical for production workflows.
How to Convert HEIC to OPENEXR
- 1
Drop your file
Drag your .heic file onto the converter. Need to process many files? Add up to 5 at once (100 for Pro).
- 2
Set output to EXR
Pick EXR from the format list. The converter automatically tunes settings for the HEIC→EXR pair.
- 3
Hit Convert
Processing happens server-side — your browser stays responsive. Most image files convert in under 10 seconds.
- 4
Download and use
Your .exr file is ready to plug into your workflow. Download it or share the link (expires in 24 hours).
What Happens When You Convert HEIC to OPENEXR
Your HEIC image is decoded into raw pixel data, then re-encoded as EXR.
Your HEIC file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using OpenEXR Image's lossless compression
Metadata (EXIF, ICC profiles) is transferred where EXR supports it
The EXR file is saved and ready for download
HEIC vs OPENEXR — Detailed Comparison
| Feature | .HEIC | .EXR |
|---|---|---|
| Full Name | High Efficiency Image Container | OpenEXR Image |
| Compression | Lossy | Lossy & Lossless |
| Transparency | No | Yes |
| Animation | Yes | No |
| Color Depth | 10 bits/channel | 16 or 32 bits/channel (half/full float) |
| HDR Support | Yes | Yes |
| Typical File Size | 1–3 MB per photo (half of JPEG) | 50–500 MB |
| Platform Support | Limited | Very Limited |
| Browser Support | Limited | none |
| Year Created | 2015 | 2003 |
| Open Standard | No | Yes |
Should You Convert HEIC to OPENEXR?
When to Convert
- ✓Your HEIC file won't open on a recipient's device or in an application
- ✓A website, service, or platform only accepts EXR uploads
- ✓You captured this file on iPhone 7+ (iOS 11+) and need to share it with others
Common Mistakes When Converting HEIC to OPENEXR
"My animated HEIC will stay animated after conversion"
EXR does not support animation. Only a single frame will be saved. Use WebP or GIF to preserve animation.
Frequently Asked Questions
Who needs to convert HEIC to EXR?
This conversion is commonly used by photographers, designers, and content creators. Typical reasons include improve file compatibility across devices and ensuring compatibility with downstream tools or platforms.
Can I convert HEIC to EXR without losing quality?
HEIC uses lossy compression and EXR typically uses lossy mode. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
Do I need to install software to convert HEIC to EXR?
No. CocoConvert runs entirely in your browser — no downloads, no plugins. It works on macOS, Windows, Linux, iOS, and Android.
How many HEIC files can I convert at once?
Free users can convert up to 5 files per hour. Pro subscribers get 100 files per hour with larger size limits (5 GB per file). Business API users can integrate batch conversion directly into their tools.
Is there an API for HEIC to EXR conversion?
Yes. CocoConvert offers a Business API for automated conversions. It supports all the same format pairs available in the web interface, including HEIC to EXR.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.