Free Pascal – professional Pascal compiler

Originally known as FPK-Pascal, the Free Pascal compiler is a 32 and 64 bit Turbo Pascal and Delphi compatible Pascal compiler.

This compiler is available for several architectures, x86, Sparc (v8,v9), ARM, x86_64 (AMD64/Opteron) and Powerpc.

The Free Pascal Compiler is an object Pascal compiler supporting both Delphi and Turbo Pascal 7.0 dialects as well as Mac Pascal dialects.

It provides a completely portable RunTime Library (RTL) available on many platforms and compatible with Turbo Pascal, but also a platform independent class based Free Component Library (FCL) adding many Delphi extensions and interfacing many popular open source libraries.

This package contains Free Pascal’s own source code. It is meant to be used by the Lazarus IDE.

Features include:

  • Language syntax has excellent compatibility with TP 7.0 as well as with most versions of Delphi (classes, rtti, exceptions, ansistrings, widestrings, interfaces).
  • Function overloading.
  • Operator overloading.
  • Global properties.
  • Rich set of code libraries.
  • Unlike most programming languages, Pascal does not need Makefiles.
  • Pascal compilers are Fast with a big F and Free Pascal isno exception.
  • Each unit has its own identifiers.
  • Free Pascal comes with an IDE which works on several platforms, in which you can write, compile and debug your programs.
  • Great integration with assembler.
  • Object oriented programming.
  • Free Pascal’s smart linker leaves out any variable or code that you do not use. That makes small programs small with a big S, while they are still statically linked.

Support: Documentation
Developer: Free Pascal Team
License: GNU GPL v2

Free Pascal is written in Object Pascal. Learn Pascal with our recommended free books and free tutorials.

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