RAS (Sun Raster) is the standard raster format of Sun Microsystems' Unix workstations, common in older scientific and Unix software.
RAS opens in GIMP, IrfanView and ImageMagick; convert to PNG/JPG for everyday use.
Share, post and embed pictures across sites and apps.
Work with the format in editors like Photoshop and GIMP.
Keep memories and assets in a widely-readable form.
| ✔ Strengths | ✖ Limitations |
|---|---|
| Excellent compatibility | No transparency support |
| Limited support — may need converting |
Remove the background from RAS images, upscale to 4K, or generate new visuals with SharkFoto AI.
RAS (Sun Raster) is the standard raster format of Sun Microsystems' Unix workstations, common in older scientific and Unix software.
RAS opens in GIMP, IrfanView and ImageMagick; convert to PNG/JPG for everyday use.
RAS is optimised for its specific use rather than strictly lossless storage.
Use SharkFoto's free tools — upload your RAS file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.
No — RAS doesn't store transparency; convert to PNG or WEBP if you need it.