Click the "Select File" button above, and choose your SIT file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert SIT to another file type
To convert your SIT file to another format, you need StuffIt Expander or other Compressed software.
Convert a file to SIT
To convert other file formats to the "Macintosh Archive" file type, you need software like StuffIt Expander or a similar tool.
About SIT files
The .SIT file extension represents a StuffIt Archive, the standard compression format for Macintosh computers from the late 1980s through the early 2000s. Developed by Aladdin Systems (now Smith Micro), it was ubiquitous because it preserved critical Macintosh "resource forks" (metadata containing icons, menu definitions, and code) that other formats like ZIP would strip away, rendering Mac applications corrupt. Today, it is a legacy format that causes significant friction: modern macOS versions do not open it natively, and Windows users cannot access the contents without specific, often paid, third-party utilities. Users typically need to convert .SIT files to ZIP or 7Z to access old backups, legacy software, or archived projects on modern devices without installing discontinued tools like StuffIt Expander.
Convert.Guru analyzes your SIT file, detects the exact format, and lets you read the text inside.
If you want to convert SIT file to ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, LZMA, CAB, ACE, ARJ or LHA, you can use StuffIt Expander or similar software from the "Legacy Macintosh Archive" category. In the File menu, look for Save As… or Export….
To convert XXE, 7Z, Z, PAK, LHA, DEB, UUE, TAR, LZH, ZIP, PKG or RAR files to SIT, try StuffIt Expander or another comparable tool in the "Legacy Macintosh Archive" category.
The SIT 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 SIT converter.