Click the "Select File" button above, and choose your SUNIFF file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert SUNIFF to another file type
The converter easily converts your SUNIFF images to various formats - free and online. No SunOS Graphics Utilities or or other Raster Image software needed.
SUNIFF to HRU
SUNIFF to TDI
SUNIFF to PDB
SUNIFF to VST
SUNIFF to PAT
SUNIFF to GIF
SUNIFF to TIF
SUNIFF to UYVY
SUNIFF to RGBA
SUNIFF to IFF
SUNIFF to GRO
SUNIFF to PC1
Convert a file to SUNIFF
To convert other file formats to the "Legacy Bitmap Image" file type, you need software like SunOS Graphics Utilities or a similar tool.
About SUNIFF files
The .SUNIFF file is a legacy raster image format historically used on Sun Microsystems UNIX workstations. It stores graphical data generated for or by the TAAC (Trancept Application Accelerator) graphics board.
Very few modern programs can open this file natively. Advanced multi-format command-line tools like ImageMagick or legacy-focused viewers like XnView may offer partial support for old Sun raster variants.
This format is highly problematic today. It is a completely obsolete, closed format that is not supported by modern web browsers, mainstream operating systems, or standard image editors like Adobe Photoshop. It lacks modern compression, meaning files are unnecessarily large, and sharing them is impractical because recipients simply cannot open them.
You must convert .SUNIFF files to standard, highly compatible formats like PNG, JPG, or TIFF for everyday use, web publishing, or long-term digital archiving.
Because it is a rare, legacy format tied to specialized 1980s hardware, standard online converters often fail to process it. Just drag and drop your file into convert.guru to identify the format, view it, and convert it when possible. Even if the specific TAAC variant is undocumented, our tool can inspect the file, identify the internal headers, and extract any recognizable raw image content.
Use Convert.Guru to open and convert your SUNIFF file.
If you want to convert SUNIFF file to , you can use SunOS Graphics Utilities or similar software from the "Legacy Raster Image Storage" category. In the File menu, look for Save As… or Export….
To convert files to SUNIFF, try SunOS Graphics Utilities or another comparable tool in the "Legacy Raster Image Storage" category.
The SUNIFF Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our SUNIFF converter.