A syntax directed editor, interpreter and IDE for Pascal. Free source code (linux) plus binaries for IBM PC and Atari ST.

32-bit Pascal compilers for DOS, OS/2, and Windows 9x/NT. Multi-target edition allows you to compile to any platform. Commercial software, but limited demo edition is available for download.

List of free Pascal compilers and development environments with useful descriptions.

Was DEC Pascal, then Compaq Pascal, optimizing compiler runs on VAX and Alpha CPUs, OpenVMS and Tru64 Unix OSs, meets Federal Information Processing Standard Publications standard FIPS-109. Descriptions, documents, news, support.

A compiler that generates portable byte-code executables from Pascal source files, and an interpreter that runs the byte-code executables at Windows, Linux, FreeBSD, Solaris/x86, and Solaris/Sparc. The Windows Edition includes an Integrated Development Environment (IDE).

A Pascal interpreter. It's Delphi/Kylix compatible. Nemesis Pascal uses internally a modified version of the JEDI Pascal Interpreter. It's cross-platform (currently Windows and Linux) and includes Virtual Machine, IDE (RAD), Web Scripting Tool. [Open source, GPL and MPL]

Complete implementation of the P4 Pascal compiler and interpreter. Source for the compiler is available in C and Pascal.