PNG to EXR for Image Workflows
Fast, instant PNG to OPENEXR conversion. No signup required. Just drop your .png file and get .exr in seconds.
Batch Settings
Some metadata may not survive
Your PNG file may contain tEXt, iTXt, ICC metadata. EXR has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
Color depth reduction: 48-bit → 32-bit
PNG stores up to 48 bits per channel, but EXR supports only 32 bits. You may notice banding in smooth gradients (like sky or skin tones) where subtle color transitions are lost.
在数字图像处理与视觉特效领域，追求极致的画质和更宽广的动态范围是创作者们不懈的追求。PNG作为常见的位图格式，在网页展示和日常分享方面表现出色，但当面对专业的影视后期、3D渲染或高动态范围（HDR）内容创作时，其局限性便显现出来。这时，OpenEXR（EXR）格式的优势便会彻底发挥。EXR以其多通道支持、浮点精度和无损压缩特性，能够完整记录图像的亮度信息和色彩深度，为后期调色、合成提供巨大空间。将PNG转换为EXR，意味着您正从日常分享的便利性，迈向专业制作的无限可能，确保您的视觉作品在最严苛的环境下依然细节丰富、光影自然。
- 游戏角色与场景的HDR贴图制作
- 影视后期VFX视觉特效合成
- VR/AR内容的高品质渲染输出
在大陆及港台地区，随着游戏引擎（如Unity, Unreal Engine）的普及和影视工业化进程加速，EXR格式在专业制作流程中的地位日益重要，尤其是在高画质游戏开发和电影级CG制作中，其作为中间文件格式的运用非常普遍。
About PNG to OPENEXR Conversion
Whether you're one of the many photographers, designers, and content creators who work with PNG files daily, there comes a time when you need EXR instead. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots.
Here's a typical scenario: you receive a .png 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 PNG to EXR online in seconds with CocoConvert.
This conversion is ideal when you When you specifically need a EXR file for your workflow. The conversion helps you convert between formats quickly.
Converting PNG to EXR maintains high quality with CocoConvert's optimised encoder settings.
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 PNG to OPENEXR
- 1
Drop your file
Drag your .png 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 PNG→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 PNG to OPENEXR
Your PNG image is decoded into raw pixel data, then re-encoded as EXR.
Your PNG file is decoded — the compressed/stored pixel data is expanded into raw RGBA (with alpha channel) 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
PNG vs OPENEXR — Detailed Comparison
| Feature | .PNG | .EXR |
|---|---|---|
| Full Name | Portable Network Graphics | OpenEXR Image |
| Compression | Lossless | Lossy & Lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Color Depth | 8 or 16 bits/channel (up to 48-bit color) | 16 or 32 bits/channel (half/full float) |
| HDR Support | No | Yes |
| Typical File Size | 5–20 MB per photo, <1 MB for graphics | 50–500 MB |
| Platform Support | Universal | Very Limited |
| Browser Support | Universal | none |
| Year Created | 1996 | 2003 |
| Open Standard | Yes | Yes |
Should You Convert PNG to OPENEXR?
When to Convert
- ✓When you specifically need a EXR file for your workflow
Frequently Asked Questions
Who needs to convert PNG to EXR?
This conversion is commonly used by photographers, designers, and content creators. Typical reasons include convert between formats quickly and ensuring compatibility with downstream tools or platforms.
Can I convert PNG to EXR without losing quality?
Converting PNG to EXR maintains high quality with CocoConvert's optimised encoder settings.
Do I need to install software to convert PNG to EXR?
No. CocoConvert runs entirely in your browser — no downloads, no plugins. It works on macOS, Windows, Linux, iOS, and Android.
How many PNG 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 PNG 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 PNG to EXR.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.