HEIF Won't Open? Convert to HDR Instantly
Fast, instant HEIF to HDR conversion. No signup required. Just drop your .heif file and get .hdr in seconds.
Batch Settings
Converting to HDR won't restore lost quality
Your HEIF file has already undergone lossy compression. Converting to HDR preserves what's left — it prevents further degradation from re-saving — but it will not magically sharpen a blurry image or recover discarded audio frequencies.
Animation frames will be lost
HEIF supports animation, but HDR 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 HEIF file may contain EXIF, XMP metadata. HDR has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
您是否曾为手机拍出的HEIF照片，在其他设备或应用上查看时色彩黯淡、细节丢失而烦恼？HEIF作为一种高效的图片格式，在存储空间和数据传输上有着天然优势，但其兼容性问题也常常让大家头疼。尤其是在追求极致视觉体验的今天，将HEIF转换为HDR（高动态范围）格式，不仅能让您的精彩瞬间重现生机，还原更丰富的色彩层次和明暗细节，还能确保画面在支持HDR的屏幕上展现出惊艳的视觉效果。我们的工具致力于解决这一痛点，让您的HEIF照片轻松跃升为HDR，无论是分享给朋友，还是用于专业编辑，都能拥有电影般的质感。告别色彩失真，迎接更加生动逼真的视觉享受！
- 微信朋友圈分享
- 手游画面优化
- 专业影像编辑
考虑到中国大陆、台湾和新加坡用户对移动设备和社交媒体的重度依赖，HEIF转HDR能显著提升照片在微信、抖音等平台上的视觉表现力，尤其在高端手机上体验更佳。
About HEIF to HDR Conversion
Dealing with a HEIF file that won't open on your device? You're not alone — HEIF compatibility issues are one of the most common reasons people search for a file converter. HEIF stores images using highly efficient HEVC compression, commonly used on Apple devices.
The fix is simple: convert your HEIF to HDR. HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering. This conversion lets you preserve files for long-term archival, solving the problem in seconds rather than hours of troubleshooting.
Full Name: HEIF uses High Efficiency Image Format, while HDR uses Radiance HDR Image. Compression: HEIF uses Lossy, while HDR uses Lossless. Transparency: HEIF uses No, while HDR uses No. HEIF supports animation, but HDR does not. Only the first frame (or a representative frame) will be preserved. If you need animation, consider converting to WebP or GIF instead.
CocoConvert processes your HEIF file on secure servers in Germany — upload, convert, download. Your files are encrypted via TLS and automatically deleted within 24 hours. No account needed, no software to install, and it works on any device with a browser.
This conversion is ideal when you When you specifically need a HDR file for your workflow. Common misconception: ""Converting HEIF to HDR will improve the quality"" — in reality, no. heif has already permanently discarded data during compression. converting to hdr preserves what's left but cannot restore lost detail. the file will just be larger.
The conversion engine behind CocoConvert uses FFmpeg, Sharp, and qpdf — the same open-source libraries trusted by Netflix, YouTube, and enterprise platforms. Pro users can batch convert up to 100 files at once.
How to Convert HEIF to HDR
- 1
Add your HEIF file
Drag and drop your .heif file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick HDR output
Select .hdr as the target format. CocoConvert automatically applies the best quality settings for this conversion.
- 3
Start conversion
Hit the Convert button. The image engine processes your file server-side — no CPU drain on your device.
- 4
Save your file
Once done, download your .hdr file. For batch jobs, download all at once as a zip.
What Happens When You Convert HEIF to HDR
Your HEIF image is decoded into raw pixel data, then re-encoded as HDR. Current quality is preserved as-is — no further degradation.
Your HEIF file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using Radiance HDR Image's lossless compression
Metadata (EXIF, ICC profiles) is transferred where HDR supports it
The HDR file is saved and ready for download
HEIF vs HDR — Detailed Comparison
| Feature | .HEIF | .HDR |
|---|---|---|
| Full Name | High Efficiency Image Format | Radiance HDR Image |
| Compression | Lossy | Lossless |
| Transparency | No | No |
| Animation | Yes | No |
| Color Depth | 10 bits/channel | 32-bit float (RGBE encoding) |
| HDR Support | Yes | Yes |
| Typical File Size | 1–3 MB per photo | 5–50 MB |
| Platform Support | Limited | Very Limited |
| Browser Support | Limited | none |
| Year Created | 2015 | 1985 |
| Open Standard | No | Yes |
Should You Convert HEIF to HDR?
When to Convert
- ✓When you specifically need a HDR file for your workflow
When NOT to Convert
- ✗You're hoping to improve image/audio quality — converting lossy to lossless cannot recover lost data
Common Mistakes When Converting HEIF to HDR
"Converting HEIF to HDR will improve the quality"
No. HEIF has already permanently discarded data during compression. Converting to HDR preserves what's left but cannot restore lost detail. The file will just be larger.
"My animated HEIF will stay animated after conversion"
HDR does not support animation. Only a single frame will be saved. Use WebP or GIF to preserve animation.
Frequently Asked Questions
Why won't my HEIF file open?
HEIF files may not open if your device lacks the right codec or application. Converting to HDR — a more widely supported format — usually resolves this. HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering.
Is it safe to convert HEIF to HDR online?
Yes. CocoConvert encrypts your file via TLS, processes it on isolated servers in Germany, and permanently deletes it within 24 hours. Your files are never shared or analysed.
Will I lose quality converting HEIF to HDR?
HEIF supports animation, but HDR does not. Only the first frame (or a representative frame) will be preserved. If you need animation, consider converting to WebP or GIF instead. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my HEIF file be?
Free users can convert files up to 250 MB each. Pro users get a 5 GB limit per file, and Business API users have custom limits.
Can I convert HEIF to HDR on my phone?
Absolutely. CocoConvert works in any modern browser — iOS Safari, Android Chrome, and all desktop browsers. No app required.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.