Convert HDR to DDS
Convert HDR files to DDS 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 HDR to DDS
- Drop your .hdr files above, or click Upload Files. You can add many files at once.
- DDS 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 .dds files as soon as each one finishes.
What to know about HDR to DDS conversion
- DDS uses lossy compression, so files are usually much smaller than HDR. Use the quality slider to balance size and detail.
- DDS is best for GPU-compressed textures for games, and opens in game engines, DirectX tools and texture editors.
HDR vs DDS
| Feature | HDR (Radiance HDR) | DDS (DirectDraw Surface) |
|---|---|---|
| Compression | lossless | lossy |
| Transparency | No | Yes |
| Animation | No | No |
| Best for | HDR environment maps for lighting 3D scenes | GPU-compressed textures for games |
| Opens in | Blender, 3D renderers and HDR viewers | game engines, DirectX tools and texture editors |
HDR (Radiance HDR): A high-dynamic-range RGBE image format commonly used for environment maps and lighting in 3D rendering.
DDS (DirectDraw Surface): An image format designed by Microsoft for storing textures and cubic environments for rendering engines.
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 HDR to DDS 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 HDR 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 DDS to HDR.
Convert HDR to other formats
- HDR to JPG
- HDR to PNG
- HDR to PDF
- HDR to WEBP
- HDR to GIF
- HDR to SVG
- HDR to AVIF
- HDR to ICO
- HDR to TIFF
- HDR to BMP
- HDR to JXL
- HDR to PSD
Convert other formats to DDS
- JPG to DDS
- PNG to DDS
- PDF to DDS
- WEBP to DDS
- HEIC to DDS
- GIF to DDS
- SVG to DDS
- AVIF to DDS
- ICO to DDS
- TIFF to DDS
- BMP to DDS
- JXL to DDS
See every HDR converter and DDS converter, or browse the full converter directory.