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: 3,541,632 This Week
    Last Update:
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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: 2,022 This Week
    Last Update:
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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: 489 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: 258 This Week
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  • 5

    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: 8 This Week
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  • 6
    RubyScript2Exe transforms your Ruby script into a standalone Windows or Linux executable. You can look at it as a "compiler", for it collects all necessary files to run your script on an other machine.
    Downloads: 3 This Week
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  • 7

    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: 4 This Week
    Last Update:
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  • 8
    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: 1 This Week
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  • 9

    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
    Last Update:
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  • 10

    gCode

    grieferCode

    Yet another scripting language Main features: - Pointers - Structures - Objectoriented programming (yet to come) - code in plain english - easy to learn (based on C, C++, Java, Pascal, Python, Lua)
    Downloads: 2 This Week
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  • 11
    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: 1 This Week
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  • 12

    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: 1 This Week
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  • 13
    FORTH-like language compiler for AVR ATMega
    Downloads: 1 This Week
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  • 14
    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: 1 This Week
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  • 15
    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: 1 This Week
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  • 16
    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: 1 This Week
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  • 17
    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: 1 This Week
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  • 18
    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: 1 This Week
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  • 19
    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: 1 This Week
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  • 20

    P Programming Language

    Inspired by Borland Pascal

    Downloads: 1 This Week
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  • 21
    PAS2PHP

    PAS2PHP

    Transpiles/Converts Pascal to Working PHP Source Code

    PAS2PHP will translate a large subset of Object Pascal to PHP, allowing you to write web applications using Lazarus/FreePascal, and then run the application on a standard HTML/PHP server. Over the last week, a lot of work has gone into PAS2PHP. Most of the major issues are resolved. There are still a number of incompatibilities which are either not fixable, or have simple workarounds. As of v0.5, you should be able to write entire PHP applications in Pascal. The key to coding for PAS2PHP is to understand the limitations of PHP. Read the example code provided, and always check the outputed PHP code to understand how this works. As a guide to what PAS2PHP can achieve... my web site is written in Pascal, and then converted to PHP. (The code is in the source package). PAS2PHP uses the Pascal Parse Tree Classes (PasTree) which comes with FreePascal, and therefore the parsing limits are defined by this library.
    Downloads: 1 This Week
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  • 22
    Port of the Pascal-P4 compiler to Free Pascal and Delphi. The source code of Pascal-P4 is commented in the book "Pascal Implementation" by Steven Pemberton and Martin Daniels. The book is readable online at http://homepages.cwi.nl/~steven/pascal/
    Downloads: 1 This Week
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  • 23
    RUG is an universal machine-friendly binary file generator. Together with suitable macro packages, it can be used to assemble executables for almost any known processor. The main goal is to build a backend for a future Scheme translator.
    Downloads: 1 This Week
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  • 24
    Development of a fully-conforming implementation of a compiler for the Sirius programming language.
    Downloads: 1 This Week
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  • 25
    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: 1 This Week
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