SWIG 3.0.12 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. SWIG for Mac lies within Developer Tools, more precisely Debugging Tools. This free Mac app was originally produced by The SWIG Team.
From the developer:
SWIG is an interface compiler that connects programs written in C and C++ with scripting languages such as Perl, Python, Ruby, and Tcl. It works by taking the declarations found in C/C++ header files and using them to generate the wrapper code that scripting languages need to access the underlying C/C++ code.
You may want to check out more software for Mac, such as Sip, Pick Color or PyBindGen, which might be similar to SWIG.
IDE