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

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  • 1

    ZeosLib

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

    Note: Delphi NextGen support (Android, iOS, OS X,) has been added the Zeos 8.0 development version. Supported compilers start with Delphi XE 10.2 Tokyo. For problems please contact us in the forums on https://zeoslib.sourceforge.io. The ZeosLib is a set of database components for MySQL, MariaDB, PostgreSQL, Interbase, Firebird, MS SQL Server, SAP Adaptive Server Enterprise and Adaptive Server Anywhere (previously Sybase), Oracle and SQLite for Delphi, FreePascal/Lazarus and C++ Builder.
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    Downloads: 374 This Week
    Last Update:
    See Project
  • 2
    Allegro.pas

    Allegro.pas

    Game library for Pascal

    Allegro.pas is a wrapper to use the Allegro Game Library with Pascal compilers (Delphi, Free Pascal, etc). Allegro is a cross-platform library intended for use in computer games and other types of multimedia programming. * Graphics: 2D and 3D, OpenGL and D3D. * Controls: Keyboard, mouse, joystick, gamepad... * Sound and music.
    Downloads: 25 This Week
    Last Update:
    See Project
  • 3
    gditools

    gditools

    A Python program/library aimed at GD-ROM image files.

    This Python program/library is designed to handle GD-ROM image (GDI) files. It can be used to list files, extract data, generate sorttxt file, extract bootstrap (IP.BIN) file and more. This project can be used in standalone mode, in interactive mode or as a library in another Python program (check the 'addons' folder to learn how). For your convenience, you can use the gditools.py GUI program supplied in the Files section (optional). To use this project you must install the Python 2.7.x branch release binaries. See the README.TXT file for more informations.
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    Downloads: 15 This Week
    Last Update:
    See Project
  • 4

    LMath library

    Math library for Free Pascal and Lazarus.

    LMath, based on DMath, is a mathematical library for FreePascal (FPC) and Lazarus. It is entirely written in Pascal and does not depend on external libraries. LMath provides routines and demo programs for numerical analysis, including mathematical functions, probabilities, matrices, optimization, linear and nonlinear equations, integration, Fast Fourier Transform, random numbers, curve fitting, statistics and graphics. It is organized s set of lazarus packages which makes it easily extensible and helps to include only really needed features in your project.
    Downloads: 7 This Week
    Last Update:
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    Vampyre Imaging Library

    Vampyre Imaging Library

    Image library for Object Pascal.

    Imaging is native Object Pascal (Delphi and FPC) image loading, saving and manipulation library. It is available for several platforms and does not require any third party dynamic libraries.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    ueControls

    ueControls

    Open source set of instrumentation controls.

    Open source set of instrumentation controls for Lazarus and Free Pascal, compilable under Windows and Linux.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7

    .Net Native Library for Lazarus

    The best library to work with .Net Assemblies in Pascal.

    The .Net Native Interface Library (DotNetNativeInterface) is a native programming interface which provides a way for Lazarus/Pascal programming language to interact with applications and libraries written in any of the .Net languages (such as C#, VB.Net etc). Programmers can use DotNetNativeInterface native methods to access .Net 3rd party libraries or .Net Framework Libraries without the need for registry entries, COM registrations or changes to the .Net libraries. The following examples illustrate when you need to use DotNetNativeInterface native methods: 1. You want to access and use .Net Framework Class Library in your application. 2. You want to access and use 3rd party .Net Libraries in your application. Competitive Advantages: 1. Access to .Net Framework Class Library. 2. No COM registration of .Net Libraries is required when deployed. 3. Allows any programming language to consume .Net libraries as if they were native code.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    COMTAY

    COMTAY

    Coroutines for Delphi and Free Pascal

    The COMTAY coroutine manager makes it easy to create and manage coroutines in Delphi and Free Pascal. Download COMTAY at https://opensimply.org/comtay The approach implemented in COMTAY allows the use of cooperative multitasking in both procedural and class-based programming.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    .Net Core for Delphi/Lazarus

    .Net Core for Delphi/Lazarus

    The best library to work with the .Net Core from Delphi and Lazarus.

    The .Net Core for Delphi/Lazarus (dotNetCore4Delphi) is a .Net Core Runtime Library for Delphi which helps Delphi/Pascal developers work with .Net Core. It is designed to provide a way to interact with .Net Core applications from Delphi/Pascal. What dotNetCore4Delphi can do: - Access .Net Core Framework Class Library. - Access Third Party .Net Core Libraries. - Access Your .Net Core Libraries. - etc Competitive Advantages: - Cross-platform framework that runs on Windows, Linux and macOS operating systems. - No extra dll is required when deployed. - Allows Delphi and Lazarus to consume .Net Core Libraries as if they were native code. - Full access to .Net Core Framework Class Library. - Lightweight and easy to use.
    Downloads: 0 This Week
    Last Update:
    See Project
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  • 10

    .Net Native Interface Library for Delphi

    The best library to work with .Net Assemblies in Delphi.

    The .Net Native Interface Library (DotNetNativeInterface) is a native programming interface which provides a way for Delphi programming language to interact with applications and libraries written in any of the .Net languages (such as C#, VB.Net etc). Programmers can use DotNetNativeInterface native methods to access .Net 3rd party libraries or .Net Framework Libraries without the need for registry entries, COM registrations or changes to the .Net libraries. The following examples illustrate when you need to use DotNetNativeInterface native methods: 1. You want to access and use .Net Framework Class Library in your application. 2. You want to access and use 3rd party .Net Libraries in your application. Competitive Advantages: 1. Access to .Net Framework Class Library. 2. No COM registration of .Net Libraries is required when deployed. 3. Allows any programming language to consume .Net libraries as if they were native code.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11

    Bloodbat's Code Library

    Useful methods for Free Pascal and Lazarus (some are TP)

    A collection of useful methods for Free Pascal and Lazarus, some are compatible with Turbo Pascal as well.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12

    HTML XHTML Parser + XPath

    Delphi HTML XHTML Parser +XPath

    Delphi HTML Parser This module lets you work with HTML documents as DOM tree and use XPath for searching tags. It is very simple way to parse HTML. This tested with version Delphi XE5,6 Usage Add in Uses parser.pas; begin HtmlTxt:= ''; //here your html NodeList:= TNodeList.Create; ValueList:= TStringList.Create; DomTree:= TDomTree.Create; DomTreeNode:= DomTree.RootNode; If DomTreeNode.RunParse(HtmlTxt) then begin {your code example: DomTreeNode.FindXPath('//*[@id="TopBox"]/div[1]/div[@class="draw default"]'),NodeList,ValueList)} end; end; Xpath support: attributes - //*[@id="TopBox"]/div/@class comment - //*[@id="TopBox"]/div/comment()[3] text - //*[@id="TopBox"]/div/text()[2] previous level - /../div[@class="draw default"]/img[2]/@alt partial coincidence by search in value of attribute: /div[@class="draw] returned nodes [[div class="draw default"],[div class="draw"], [div class="draw any"]..] like Xpath's function contains
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13

    IBANManager

    IBANManager library

    This library allows you to validate IBAN codes and print in human-friendly format and paper format.
    Downloads: 0 This Week
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    See Project
  • 14

    MuPDFLib for Pascal

    Using MuPDF library in FreePascal/Lazarus

    An effort to bring the latest MuPDFLib version to PASCAL/LAZARUS, based on the work from Dinko Miljak and Blestan Tabakov. MuPDF is a lightweight PDF, XPS and E-Book Viewer. You do not have many options if you want to included PDF support in your Pascal/Lazarus projects. MuPDF is maybe one of the best options, but is stuck on version 1.08 (from 2015), to be used with Lazarus. I managed to bring the supported version up to 1.17.0 (latest MuPDF). Only for Win64. Help is welcome to bring support for MacOS, Linux and Haiku. As I have no previous experience using external libraries and writing headers for them, I can use some help. So if you want the newest version of MuPDFLib support, please give me a hand.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    OpenCV Delphi wrapper
    Downloads: 0 This Week
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    See Project
  • 16

    SimpleFaceDetect

    Simple library to detect faces in an image.

    Simple library to detect faces in an image. No additional dll's, components needed. Just plain object pascal code. Run in delphi or lazarus. Open project and press F9. That's it.
    Downloads: 0 This Week
    Last Update:
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  • 17
    Project is obsolete; see Editas
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18

    iff4pascal

    Units to help dealing with IFF files in Pascal.

    Allows to read and create IFF compliant files using TStream based objects. Interchange File Format (IFF), is a generic container file format originally introduced by Electronic Arts in 1985. It is a flexible and scalable format description.
    Downloads: 0 This Week
    Last Update:
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  • 19

    neoPack

    Fully virtual ListView for Delphi/Lazarus

    Project is obsolete; see Editas. ListView has no items occupied memory, only visible items are in memory. When turn on filter, maximum 4 bytes per item or less. Each item can be different height.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Instrumentation and others useful controls for Lazarus IDE Get the new version at: http://sourceforge.net/projects/uecontrols
    Downloads: 0 This Week
    Last Update:
    See Project
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