Convert SGI to FITS
Convert SGI images to FITS in bulk without losing quality or installing any software. Fast, free and easy to use.
68+ input formats · 41 output formats · click, drop or paste
How it works
- 01
Upload your SGI file(s)
Click "Choose files" or drag your SGI images into the drop area. You can also paste them.
- 02
Pick the output
FITS is pre-selected. Open Settings to adjust quality or max size.
- 03
Start conversion
Hit Convert. Files process three at a time — most finish in well under a second.
- 04
Download
Download each file individually, or all of them together as a ZIP archive.
SGI vs FITS
Silicon Graphics image
Legacy format from SGI workstations, still used in some 3D pipelines.
Flexible Image Transport System
Standard format in astronomy.
Frequently asked questions
How do I convert SGI to FITS?+
Drop your SGI image(s) into the converter above, click Convert, then download the result individually or as a ZIP.
How do I convert SGI without losing quality?+
Open Settings and move the quality slider to 100. Lossless formats like PNG and TIFF always keep every pixel; WEBP and AVIF switch to lossless mode at 100.
Can I bulk convert SGI files?+
Yes. Select or drop as many SGI files as you like — they're converted in parallel and can be downloaded together as a ZIP.
Is this converter secure?+
Yes. Every file is converted entirely inside your browser and never uploaded to any server.
Can I edit images after converting?+
Yes — use our free Resize and Compress tools.
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