HDR vs QOI — Comparison & Free Converter
Fast, instant HDR to QOI conversion. No signup required. Just drop your .hdr file and get .qoi in seconds.
Batch Settings
将HDR高动态范围图像转换为QOI（Quite OK Image）格式，能让您的视觉内容在保持高质量细节的同时，获得更轻巧、更易于分享的优势。HDR图像以其惊人的色彩深度和亮度范围，为专业摄影和影视创作带来了无限可能。然而，其较大的文件体积和特定的播放要求，有时会给日常分享和快速预览带来不便。QOI作为一种新型的无损图像压缩格式，以其极致的编码和解码速度，以及远超传统格式的压缩效率，正迅速受到开发者和用户的青睐。它能在不牺牲图像质量的前提下，大幅优化文件大小，让您的精彩瞬间以更迅捷的方式触达观众，无论是社交媒体分享还是游戏素材整合，都能游刃有余。
- 微信朋友圈高清图片秒传
- 游戏开发素材快速迭代
- 移动设备相册流畅预览
在区域内，由于移动网络环境的多样性和社交媒体平台对图片加载速度的普遍高要求，QOI格式在提升用户体验方面展现出巨大潜力，尤其是在处理HDR这类数据量较大的图像时。
About HDR to QOI Conversion
HDR or QOI — which format should you use? The answer depends on your needs. Here's a quick breakdown.
HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering. It has niche platform support. QOI is a widely used file format. It has common platform support.
So when should you convert HDR to QOI? This conversion is ideal when you When you need a QOI file. This conversion helps you convert between formats quickly.
Converting HDR to QOI maintains high quality with CocoConvert's optimised encoder settings.
If you've decided QOI is the right choice, CocoConvert makes the conversion effortless. Upload your .hdr file, pick QOI, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert HDR to QOI
- 1
Choose your HDR file
Upload your .hdr file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to QOI
Select .qoi from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your QOI file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert HDR to QOI
Your HDR file is decoded and re-encoded as QOI.
Your HDR file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in QOI format
The converted file is ready for download
Format Comparison
HDR
.hdr file
| Extension | .hdr |
| MIME Type | image/vnd.radiance |
| Category | Image |
QOI
.qoi file
| Extension | .qoi |
| MIME Type | image/qoi |
| Category | Image |
Should You Convert HDR to QOI?
When to Convert
- ✓When you need a QOI file
Frequently Asked Questions
Should I use HDR or QOI?
It depends on your goal. HDR preserves full quality. QOI preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is QOI higher quality than HDR?
Not necessarily. Converting HDR to QOI maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert HDR to QOI on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for HDR to QOI?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for HDR to QOI?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.