Convert DDS to HDR
Convert DDS files to HDR locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
Upload FilesPlatform Statistics
How to convert DDS to HDR
- Drop your .dds files above, or click Upload Files. You can add many files at once.
- HDR is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .hdr files as soon as each one finishes.
What to know about DDS to HDR conversion
- HDR is lossless: it stores the decoded image exactly, which usually makes files larger than the original DDS, but prevents further quality loss when you edit again.
- HDR has no transparency, so transparent areas of the DDS are filled with white.
- HDR is best for HDR environment maps for lighting 3D scenes, and opens in Blender, 3D renderers and HDR viewers.
DDS vs HDR
| Feature | DDS (DirectDraw Surface) | HDR (Radiance HDR) |
|---|---|---|
| Compression | lossy | lossless |
| Transparency | Yes | No |
| Animation | No | No |
| Best for | GPU-compressed textures for games | HDR environment maps for lighting 3D scenes |
| Opens in | game engines, DirectX tools and texture editors | Blender, 3D renderers and HDR viewers |
DDS (DirectDraw Surface): An image format designed by Microsoft for storing textures and cubic environments for rendering engines.
HDR (Radiance HDR): A high-dynamic-range RGBE image format commonly used for environment maps and lighting in 3D rendering.
Conversion options
- Resize by width, height or both (aspect ratio is preserved)
- Filters: grayscale, sepia, blur and sharpen
- Custom output file name
Frequently asked questions
Is it safe to convert DDS to HDR here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several DDS files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert HDR to DDS.
Convert DDS to other formats
- DDS to JPG
- DDS to PNG
- DDS to PDF
- DDS to WEBP
- DDS to GIF
- DDS to SVG
- DDS to AVIF
- DDS to ICO
- DDS to TIFF
- DDS to BMP
- DDS to JXL
- DDS to PSD
Convert other formats to HDR
- JPG to HDR
- PNG to HDR
- PDF to HDR
- WEBP to HDR
- HEIC to HDR
- GIF to HDR
- SVG to HDR
- AVIF to HDR
- ICO to HDR
- TIFF to HDR
- BMP to HDR
- JXL to HDR
See every DDS converter and HDR converter, or browse the full converter directory.