Bulk HDR to RAS Converter Online — Free HD Quality
Drag and drop your multiple HDR files into this 100% free online HDR to RAS converter (.hdr to .ras), and click the Convert button to bulk convert them to RAS format in HD quality. Use the quality slider to fine-tune your RAS output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original HDR files are removed from our servers right after. Also see:Easy DDS to JPG converter.
Drop your HDR files here to convert to RAS, or click to browse
Converts .hdr to RAS (.ras) in HD quality — bulk, free, no signup
Choose FilesHDR vs RAS — File Format Comparison
See how HDR and RAS compare across file extension, MIME type, compression, and feature support. Related:Convert multiple HDR to XPM at once.
| Feature | HDR | RAS |
|---|---|---|
| File Extension | .hdr | .ras |
| MIME Type | image/vnd.radiance | image/x-sun-raster |
| Compression Type | Lossless | Lossless |
| Transparency Support | No | No |
| Animation Support | No | No |
| Metadata Support | Yes | Yes |
What Is HDR Format?
Radiance HDR format for high dynamic range images. See also:Convert multiple HDR to PNM at once.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported
What Is RAS Format?
Sun Raster format for Unix systems.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported