Browse free open source Pascal Compilers and projects below. Use the toggles on the left to filter open source Pascal Compilers by OS, license, language, programming language, and project status.

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  • 1

    MinGW - Minimalist GNU for Windows

    A native Windows port of the GNU Compiler Collection (GCC)

    MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
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    Downloads: 3,056,718 This Week
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  • 2
    Free Pascal Compiler

    Free Pascal Compiler

    Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler

    A 32/64/16-bit Pascal compiler for Win32/64/CE, Linux, Mac OS X/iOS, Android, FreeBSD, OS/2, Game Boy Advance, Nintendo NDS and DOS; semantically compatible with Delphi, Borland Pascal and Mac Pascal (partially) with extra features, e.g. operator overloading.
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    Downloads: 3,200 This Week
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  • 3
    Turbo Pascal (With DOSBox)

    Turbo Pascal (With DOSBox)

    Free compiler and development environment for Pascal

    Turbo Pascal (With DOSBox) (TPWDB) is a free and open source compiler and Integrated Development Environment (IDE) for Pascal language on Windows 64 Bit and 32 Bit. Using basic Pascal programming, many functions, no need to install multiple steps and integrate some other tools.
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    Downloads: 886 This Week
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  • 4
    Pascal XE

    Pascal XE

    Pascal XE is an easy to use IDE for Pascal programming.

    Pascal XE is an IDE for Pascal programming, it is user friendly and designed specially for beginners in programming. Pascal XE includes 3 free compilers: - Virtual Pascal Compiler 2.1.279 (default) - Free Pascal Compiler 3.0.4 - GNU Pascal Compiler 20070904
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    Downloads: 509 This Week
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  • 5
    Vector Pascal is a language targeted at SIMD multi-core instruction-sets such as the AVX and SSE2 or x86-64-v3. It has a SIMD compiler which supports parallel vector operations, loop unrolling, common sub expression removal etc. It is implemented in Java.
    Downloads: 19 This Week
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  • 6

    pascal p5c

    fast, portable Pascal compiler using gnu c as intermediate code

    p5c is a fast portable iso standard pascal compiler. It is derived from the pascal p5 compiler and creates gnu c code instead of p-code. This makes it very fast since it uses gcc to generate native code. p5c is multi platform - it is easy to get up and running since you only need gcc to start. Using gcc enables extra tools like a static analyser and code coverage analyser. Execution profiling described in the blog here -> https://sourceforge.net/p/pascal-p5c/blog/2017/07/how-to-use-profiling-to-speed-up-p5c-pascal-programs It extends p5 by adding arbitrary set limits and conformant arrays. The project also contains p5x - pascal with extensions to the standard pascal language (underscores allowed in identifiers, otherwise in case statement, constant expressions, etc)
    Downloads: 7 This Week
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  • 7
    Action! Programming Language

    Action! Programming Language

    Action! - The Native Programming Language for Atari 8-bit Computers

    Action! is a programming language for the Atari 8-bit family of microcomputers. It features an integrated editor, a debugger, and a 6502 compiler. Action! was created by Clinton Parker and released on cartridge by Optimized Systems Software (OSS) in 1983. Its syntax is similar to that of ALGOL 68.  Action! is significant for its high performance, which allows games and graphics demos to be written in a high-level language without the use of hand-written assembly language code. Action! language constructs were designed to map cleanly to 6502 opcodes. In 2015, Clinton Parker released the Action! 3.6 source code to the public under the terms of GPL. This project is intended to preserve the Action! source code, provide fixes for known bugs, and add new features in version 3.7. Join us at AtariAge https://forums.atariage.com/topic/217770-action-source-code for questions and discussions. Check out https://atariwiki.org/wiki/Wiki.jsp?page=Action for related information.
    Downloads: 5 This Week
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  • 8
    MPL Bytecode Compiler

    MPL Bytecode Compiler

    Micro Programming Language - A Portable Language for Micro Computers

    NEWS: The MPL language is now completely defined. No more language changes are to be made. The compiler is complete and should be easy to translate to other languages if you so choose. MPL is a small, simple language based on BCPL, B, C and Jesusonic. The compiler and interpreter are written in portable Pascal. I have successfully compiled MPL for CP/M, DOS, Windows, Atari ST, Amiga and the Tandy Colour Computer. MPL is designed to be tiny in every way, while implementing all the important features of BCPL & B. The result is a compiler written in a high level language (PASCAL) which compiles to under 16K (CP/M). The symbol table, language syntax, and bytecode are all optimized for size. I will write a MPL Reference Manual in time. Contact myself if you want to help get that written.
    Downloads: 3 This Week
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  • 9

    P Programming Language

    Inspired by Borland Pascal

    Downloads: 3 This Week
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  • 10
    A small educational compiler for a subset of the Pascal language. A native x86 machine code generator directly emits COM executables for MS-DOS. The compiler supports VGA graphics, floating-point arithmetic, etc. 32-bit Pascal source is provided.
    Downloads: 3 This Week
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  • 11

    Oberon V4

    Oberon V4 for Linux and sources for different Oberon V4 implementation

    Here you can find both an Oberon V4 system for Linux (x86) and a collection of Oberon V4 sources for various other platforms. Oberon V4 was implemented at ETH Zurich for several platforms. Binaries can be found on their server[1] and on the one of the University of Linz[2] where Mössenböck's group did further development after he left ETH and the Group at ETH concentrated on System 3. More Information can be found in the wiki https://sourceforge.net/p/oberon/wiki/Home/ of this Project and on Wikipedia https://en.wikipedia.org/wiki/Oberon_(operating_system). In 2013 they were moved here for easy access and, in case of interest, collaboration on further development. The Oberon mailing list[3] is an established channel for its discussion and followed also by the administrators of this SF project. [1] ftp://ftp.ethoberon.ethz.ch/Oberon/OberonV4/ [2] ftp://oberon.ssw.uni-linz.ac.at/pub/Oberon/ [3] https://lists.inf.ethz.ch/mailman/listinfo/oberon
    Downloads: 2 This Week
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  • 12
    FORTH-like language compiler for AVR ATMega
    Downloads: 1 This Week
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  • 13

    Scimark for Delphi Lazarus Free Pascal

    Scimark for Delphi/Lazarus/Free Pascal

    Benchmark for scientific and numerical computing. http://math.nist.gov/scimark Some years ago, someone converted the sources to delphi. The result of that convertion can be found here: https://code.google.com/p/scimark-delphi/ I found some issues and tried to contact the author. Without success. That's why I decided to start a new repository here. Patches are welcome!
    Downloads: 1 This Week
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  • 14

    ACCP

    ACS script command line compiler for id-tech1 games

    This is the Pascal edition of ACS script command line compiler for id-tech1 games. It can be used to compile ACS scripts for DelphiDoom source port
    Downloads: 0 This Week
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  • 15
    Iterpreter of Pascal language which may help programmers doing ther job. Include basic operations in/out, declarations of variables.
    Downloads: 0 This Week
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  • 16
    AllInOneRuby creates an Windows or Linux executable that includes both the Ruby interpreter and the runtime libraries. Why? Because it's sometimes not easy, or allowed to do a complete Ruby installation. That's where AllInOneRuby comes in.
    Downloads: 0 This Week
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  • 17
    AmiE (AmigaE)

    AmiE (AmigaE)

    E Integrated Development Environment Targeting All Systems

    NOTE: Project has been delayed due to other tasks. I will return to this project in 2018. This is a new project which will be available soon. I wanted to bring AmigaE back to life, so I wrote an E to C transpiler which creates C code compatible CC65/CMOC/VBCC/BCC/GCC/TCC/LCC etc. The aim is to bring AmigaE to every possible platform in one hit.
    Downloads: 0 This Week
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  • 18
    Le projet Atlantis est une collection de composants et de bibliothèques pour Lazarus. The Atlantis project is a collection of components and libraries for Lazarus.
    Downloads: 0 This Week
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  • 19
    Experimental compiler for new .NET language written in C#. Based on Pascal-like Microsoft Navision C/AL programming language. Dedicated for working with databases. It has a built-in O-R mapper. Current implementation works with Microsoft SQL Server DBMS
    Downloads: 0 This Week
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  • 20
    An open source compiler for the Crystal programming language.
    Downloads: 0 This Week
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  • 21
    Draak is a multi-language, macro compiler, meaning all syntax and code generation is defined in a single file. Draak is a single binary that is able to compile any context free language (like C, Pascal, Java) for any platform with only 1 file.
    Downloads: 0 This Week
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  • 22
    DURIAN is a Free Delphi Web Application Server for make interactive dynamic web documents in the Pascal server-side html-embedded scripting language for Windows (Delphi) and Linux (Kylix).
    Downloads: 0 This Week
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  • 23
    FlashPascal
    compiler for a Pascal like language that build Flash animation (SWF) FlashPascal2 is a more advanced free compiler availabe at http://flashpascal.execute.re/
    Downloads: 0 This Week
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  • 24
    Free Pascal Compiler for Delphi
    Downloads: 0 This Week
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  • 25
    A free pascal compiler targeting the Microsoft .NET and Mono platform; Full compatibility to the Borland Delphi.NET compilers is one of the main goals.
    Downloads: 0 This Week
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