Convert SGI to PNG
SGI and PNG are both lossless, so the image comes through unchanged.
They open in the converter with PNG selected.
Browse filesFiles stay on your device.
What changes
Both formats are lossless, so the quality doesn’t change.
The file size stays about the same.
Both support transparency, so it’s kept.
Your browser may not be able to open SGI files, but the converter reads the file itself, so it can still convert it.
When it’s worth it
Choose PNG for: Logos, screenshots, and graphics. Keeps every pixel and supports transparent backgrounds.
Stay with SGI for: Old 3D and workstation archives.
How to convert SGI to PNG
- Drop the SGI files on this page, or browse for them. Up to 200 at once.
- The converter opens with the files loaded and PNG selected.
- Press Convert, then save each file or all of them as a ZIP.
Questions
Does converting SGI to PNG lose quality?
No. Both formats are lossless.
What is the PNG format?
Lossless image format from 1995, standardized as ISO/IEC 15948. It compresses with Deflate and supports an alpha channel and 8 or 16 bits per channel, which is why it’s the default for screenshots, logos and anything that has to stay sharp.
What is the SGI format?
The SGI Image Format, written by Silicon Graphics for the IRIS workstations: .rgb holds 8-bit channels and .bw a single greyscale channel. It still turns up in old 3D and medical pipelines built around IRIX-era tools.
Are the files uploaded?
No. The file is opened in this tab, converted here and saved from here. There’s no account and no watermark.
How many files can be converted at once?
Up to 200 per batch and about 2 GB per file, within the memory this device has available.