Open Source Free Pascal Software

Free Pascal Software

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

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  • 1
    Lazarus

    Lazarus

    Rapid applications development tool and libraries for FPC

    The Lazarus IDE is a stable and feature rich visual programming environment for the FreePascal Compiler. It supports the creation of self-standing graphical and console applications and runs on Linux, FreeBSD, MacOSX and Windows.
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    Downloads: 16,599 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: 6,968 This Week
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  • 3
    Double Commander
    Double Commander is a cross platform open source file manager with two panels side by side. It is inspired by Total Commander and features some new ideas.
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    Downloads: 6,920 This Week
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  • 4
    Clipper

    Clipper

    Polygon and line clipping and offsetting library (C++, C#, Delphi)

    This library is now obsolete and no longer being maintained. It has been superceded by my Clipper2 library - https://github.com/AngusJohnson/Clipper2.
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    Downloads: 7,137 This Week
    Last Update:
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  • 5
    HeSuVi

    HeSuVi

    Headphone Surround Virtualizations for Equalizer APO

    This tool imitates the 7.1 to binaural sound effect of many surround virtualizations by making use of Equalizer APO's convolution filter. Available are impulse response that were recorded with activated... – Dolby Atmos Headphone – CMSS-3D – SBX Pro Studio Surround (also found in BlasterX Acoustic Engine & THX TruStudio Pro) – Dolby Headphone – Sennheiser GSX Binaural 7.1 – DTS Headphone:X – Windows Sonic Headphone – Dolby Home Theater v4 Headphone Surround Virtualizer – Razer Surround – Out Of Your Head – Flux HEar V3 – OpenAL and DirectSound3D HRTFs – Waves Nx – and many more! Visit the wiki for more information on how it works and how to set up: https://sourceforge.net/p/hesuvi/wiki/Help/ A little demonstration video can be found here: https://www.youtube.com/watch?v=WlqpG2euh50 Equalizer APO by Jonas Thedering has to be installed first: https://equalizerapo.sourceforge.io
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    Downloads: 1,780 This Week
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  • 6
    Sky Chart / Cartes du Ciel
    SkyChart is a software to draw chart of the night sky for the amateur astronomer from a bunch of stars and nebulae catalogs. See main web page for full download. This software is part of a full suite for astronomical observation: https://sourceforge.net/projects/ccdciel/ https://sourceforge.net/projects/indistarter/ https://sourceforge.net/projects/eqmodgui/ Requirement: https://sourceforge.net/projects/libpasastro/ See also: https://sourceforge.net/projects/indi/
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    Downloads: 1,214 This Week
    Last Update:
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  • 7
    OpenDSS

    OpenDSS

    EPRI Distribution System Simulator

    The OpenDSS is an electric power Distribution System Simulator (DSS) for supporting distributed resource integration and grid modernization efforts. See Discussion Forum for latest news.
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    Downloads: 596 This Week
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  • 8
    Free Manga Downloader

    Free Manga Downloader

    Forked from https://sf.net/p/fmd/

    The Free Manga Downloader (FMD) is an open source application written in Object-Pascal for managing and downloading manga from various websites. This is a mirror of main repository on GitHub. For feedback/bug report visit https://github.com/riderkick/FMD
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    Downloads: 557 This Week
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  • 9
    Software for Moon observation and survey. Let you visualize the real Moon aspect at every time. Also help to study any lunar formations using feature database and pictures library.
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    Downloads: 545 This Week
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  • 10

    ZeosLib

    Database components for Delphi, FreePascal/Lazarus, Kylix, C++ Builder

    The ZeosLib is a set of database components for MySQL, MariaDB, PostgreSQL, Interbase, Firebird, Microsoft SQL Server, SAP Adaptive Server Enterprise and Adaptive Server Anywhere (previously Sybase), Oracle, SQLite, OleDB, DuckDB and QuestDB for Delphi, FreePascal/Lazarus and C++ Builder.
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    Downloads: 361 This Week
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  • 11
    Dragon UnPACKer
    Dragon UnPACKer is a game archive (Quake PAK, etc..) unpacking tool. It is plugin based making easier to add new archive file formats. It has convert ability and raw search function for known material (audio, video and pictures).
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    Downloads: 282 This Week
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  • 12
    Scrabble3D
    <b>The project is continued at https://github.com/Scrabble3D. Find the latest program version under Binaries.</b> Scrabble3D is a highly customizable Scrabble game that not only supports Classic Scrabble and Superscrabble but also 3D games and own boards. You can play local against the computer or connect to a game server to find other players.
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    Downloads: 191 This Week
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  • 13
    Free DELTA

    Free DELTA

    Software tools for processing taxonomic descriptions in DELTA format

    The Free DELTA Project is a free, open-source, software alternative for a generic system to the processing of taxonomic descriptions based on the DELTA (DEscription Language for TAxonomy) format.
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    Downloads: 679 This Week
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  • 14
    UltraStar Deluxe

    UltraStar Deluxe

    A free sing-along karaoke game for your PC

    Karaoke sing-along game for PC which is similar to Playstation® Singstar™. It allows up to six players to sing along with music using microphones in order to score points, depending on the pitch of the voice and the rhythm of singing.
    Downloads: 80 This Week
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  • 15
    Johnny Simulator

    Johnny Simulator

    Johnny - A Simulator of a Simple von-Neumann Computer

    Johnny is a simulator of a simple (virtual) von-Neumann Computer. Its principal application is education; therefore a number of simplifications are made: rather reduced instruction sets, simplified bus operations, etc. It visualizes the function of Memory, Arithmetic Logic Unit and Control Unit. Machine Programs can be created and edited using a comfortable GUI and run on the virtual machine step by step. Micro Code, too, is editable: Instructions can be added and modified using the GUI.
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    Downloads: 235 This Week
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  • 16
    Time_limit

    Time_limit

    A windowed/full-screen countdown timer.

    A windowed / full-screen countdown timer. Colour and font size changes are used as warnings. Progress-bar gives a glance at the time stream. Three different modes are available: - time left; - time passed; - ordinary clock. When the time is over several possibilities are available: - to show the defined message; - to continue count the time; - to launch another application; - to close the count-down timer. Useful for speech, lecture or presentation timing. Colour / font / time limits can be changed using settings window and hot-keys. To change current time use the mouse wheel. By clicking on progress-bar, the timer mode is toggled.
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    Downloads: 228 This Week
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  • 17
    XML Tree Editor

    XML Tree Editor

    Basic cross-platform tree view XML editor

    XMLTreeEdit displays XML files as tree views and allows basic operations: adding, editting and deleting text nodes and their attributes. The main goal is providing a simple tool to create/edit XML configuration files for users without knowledge of XML. Built in Free Pascal Lazarus, which allows easy compilation for different target platforms. Currently binary executables were produced and tested on Windows (XP, 7) and Ubuntu Linux (GTK2). For developers: there are two units listed separately to support XML configuration files in your application: XMLfile.pas - Lazarus/Free Pascal uXMLConfig.pas - Delphi (2007..XE2)
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    Downloads: 61 This Week
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  • 18
    GLScene

    GLScene

    GLScene Engine for Delphi & C++Builder VCL Windows 32/64

    GLScene is an OpenGL based 3D library for Delphi, C++Builder and Lazarus. It provides visual components and objects allowing description and rendering 3D scenes in graphic applications. Update of newer versions of the trunk has been moved to https://github.com/glscene
    Downloads: 44 This Week
    Last Update:
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  • 19
    CCDciel

    CCDciel

    Astronomy CCD capture software

    A CCD capture software intended for the amateur astronomer. It include all the features required to perform digital imaging CCD observation of celestial objects. Using the standard drivers protocol INDI and ASCOM it can connect and control the CCD camera, the focuser, the filter wheel and the telescope mount. This software is part of a full suite for astronomical observation: https://sourceforge.net/projects/skychart/ https://sourceforge.net/projects/indistarter/ https://sourceforge.net/projects/eqmodgui/ Requirement: https://sourceforge.net/projects/libpasastro/ See also: https://sourceforge.net/projects/indi/
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    Downloads: 128 This Week
    Last Update:
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  • 20
    HTMLViewer
    HTML Viewer Components for Delphi, Lazarus and C++Builder The HtmlViewer component set consists of the THtmlViewer, TFrameViewer, and TFrameBrowser components. All three are HTML document display components: THtmlViewer * The basic component. * THtmlViewer displays single (non-frame) documents. * It also forms the basis for the other two components. TFrameViewer * Displays both frame and single HTML documents. * TFrameViewer is oriented more for local file system use. TFrameBrowser * Also displays frame and single HTML documents. * TFrameBrower is oriented for use with local file systems and toward Internet style protocols and URL usage. * Additional code and/or components are generally required to get data from other sources than the local file system. These components Support most of the HTML 4.01 specifications with many additional popular HTML 5 enhancements. Many Cascading Style Sheet properties are also supported.
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    Downloads: 43 This Week
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  • 21
    APK File Manager

    APK File Manager

    Organize your android .apk collection! Catalog and view informations.

    With this program you will be able to organize your (legally obtained) android .apk file collection. Features include getting Play Store information and screenshots from each apk file, and storing them offline for later viewing.
    Downloads: 29 This Week
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  • 22
    AWGG

    AWGG

    AWGG Advanced WGet GUI

    AWGG comes from Advanced Wget GUI. AWGG is a lightweight multiplatform and multilanguage download manager, basically a wget frontend and other tools like aria2, curl, youtube-dl and axel. AWGG is written in Free Pascal , using CodeTyphon and Lazarus IDE.
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    Downloads: 37 This Week
    Last Update:
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  • 23
    Arduino Nano Dew Controller Pro (DIY)

    Arduino Nano Dew Controller Pro (DIY)

    Dew Controller Feature Rich

    A 3-channel fully automated Dew Controller (DIY project) based on Arduino Nano for telescopes. For $48 or less. (c) Copyright Robert Brown 2014-2025. All Rights Reserved. Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author. A very popular project with over 48,000 downloads. There is a new ESP32 WiFi version at https://sourceforge.net/projects/esp32-dew-controller/ The older myDCP2 (two-channel dew controller) is found here https://sourceforge.net/projects/arduinonanodewcontrollerpro/files/myDewController%20v200%202channel/
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    Downloads: 36 This Week
    Last Update:
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  • 24

    virtualplanet

    Software for planet observation and study

    Allow you to visualize any planet aspect at any time. Include extended feature database and texture. Many function are oriented to the observation at the telescope and other to indoor research .
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    Downloads: 44 This Week
    Last Update:
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  • 25
    AL-IV

    AL-IV

    ALFOUR Programming language. Simple, safe, power, multi-platform.

    A programming language AL-IV (ALFOUR) is a high-level imperative object oriented programming language with minimal introduction level, easy porting to any platform claiming a very high level of safety and stability, with a controllable level of code protection, high efficiency of an executable code, full independence from a target platform, minimal enter level.
    Downloads: 120 This Week
    Last Update:
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