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Free Scripting Interpreters

Download Standard Python Software
Python source and windows binaries.

Latest Version of Perl
Perl is Open Source software. You can download it for free as a source code or as a pre-compiled binary distribution.

Latest stable version of PHP
Complete source code and Windows binaries.

Mac Perl 5
This is Perl 5, ported to the Mac by Matthias Neeracher

Active Perl
ActivePerl is ActiveState's quality-assured distribution of Perl, available for Linux, Solaris, and Windows.

Active Python
ActivePython is ActiveState's quality-assured binary build of Python, available for Linux, Solaris and Windows.

Active Tcl
ActiveTcl is ActiveState's quality-assured distribution of Tcl, available for HP-UX, Linux, Solaris, and Windows.