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30,057 projects in the catalog.

Free Pascal, Lazarus and Delphi components, libraries and programs from GitHub, SourceForge, Codeberg, GitLab and more. Rate them, mark what looks interesting, and talk about them on their benches.

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pascalutils

PascalUtils is an object library for delphi and FreePascal of data structures that implements syntactic sugar similar to that of other modern languages as far as syntax allows.

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 35
  • MIT

Other

libpasc-algorithms

libPasC-Algorithms is delphi and object pascal library of common data structures and algorithms. The library is a set of containers adapted for the Pascal language and the template system available on it.

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 27
  • MIT

Other

advpascalutils

AdvPascalUtils is a library of some useful patterns and complex data structures implemented for FreePascal and Delphi.

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 11
  • MIT

Other

pascaladt

A library of algorithms and data structures for the Free Pascal Compiler.

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 6
  • LGPL-2.1

Other

hxd-plugin-framework

Plugin framework for HxD's data inspector

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 187
  • MPL-2.0

Other

LGenerics

Generic algorithms and data structures for Lazarus/Free Pascal

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 139
  • Apache-2.0

Other

DataStructuresPascal

This repository contains exercises on dynamic memory, pointers, vectors, and matrices in Pascal. It demonstrates memory allocation, data manipulation, and safe disposal practices, showcasing foundational skills in data structures and low-level programming.

  • Active
  • Library
  • GitHub
  • ★ 1

Other

BAScript

BAScript is a simple scripting engine written in Object Pascal you can use to add scripting to your Delphi, Lazarus or Free Pascal applications ("host program") to extend their functionality without the need of recompiling them. The virtual machine defines its own language, called the BAScript language. It is a low-level language, somewhat similar to the Assembler language, which is not intended to be easy to program but easy to execute. So it is recommendable to use other higher level languages and translate them into BAScript language. Package includes two compilers that translates from a higher-level language to the BAScript language. You should note that BAScript is intended to be lightweight, so it has not mechanisms to handle complex data structures or large amounts of data or code. On the other hand, it has less need for memory and resources than other scripting interpreters. If you need more power you may try PascalScript.

  • Active
  • Library
  • Lazarus and Delphi
  • SourceForge
  • zlib/libpng License

Language Tools

EZDSL

Easy Data Structures for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 25

Other

SFBusinessData

Components (Delphi) for reusable, database independent programming of business or data logic

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 3
  • MIT

Database

NosoData

Basic Noso Data blocks in Object Pascal, Legacy and New versions

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 2
  • MIT

Other

WindowsMessaging

A lightweight, component-based wrapper for inter-process communication (IPC) in Delphi using the WM_COPYDATA protocol. This package allows you to send and receive strings or data structures between separate Windows applications with minimal configuration.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 8
  • MIT

System

wirth1976

Niklaus Wirth's Algorithms + Data Structures 1976 in Python, JavaScript, Scheme, and Pascal

  • Quiet
  • Other
  • GitHub
  • ★ 5

Learning and Examples

pascalalgs

Miscellaneous algorithms and data structures implemented in Pascal from 2000 / 2001!

  • Quiet
  • Other
  • GitHub
  • ★ 4

Learning and Examples

adsp-pl0

Transcription (and conversion to current Free Pascal code) of the PL0 compiler and interpreter presented in 1976 by Niklaus Wirth in his book 'Algorithms + Data Structures = Programs'

  • Active
  • Other
  • Lazarus
  • GitHub
  • ★ 2
  • MIT

Language Tools

DCPYPS

Common tools for DCPROGS: data structures, file i/o, etc

  • Quiet
  • Library
  • GitHub
  • ★ 1

Science

PL-0

PL/0 is a programming language similar to, but simpler than, Pascal. Introduced in the book Algorithms + Data Structures = Programs by Niklaus Wirth in 1976

  • Active
  • Application
  • GitHub
  • ★ 1

Language Tools

threadsafecollections-fp

A thread-safe generic collections library for Free Pascal.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 16
  • MIT

Other

adot

AntiDOT library for Delphi (PEGs, data structures etc)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 10

Other

SqlExtrator

Extract SQL from the object structures

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 8
  • GPL-3.0

Database

AntrianBank

Antrian bank dengan perioritas antrian

  • Quiet
  • Application
  • GitHub
  • ★ 1

Applications

adot

RBS AntiDOT is multiplatform library of containers and data structures for Delphi and Pascal: Vectors, Maps, Sets, Lists and other. Supports all Delphi built-in types. 100% Object Pascal code, no DLLs, no wrappers. Compatible with Free Pascal Compiler.

  • Library
  • Lazarus and Delphi
  • SourceForge
  • GNU General Public License version 2.0 (GPLv2)

Other

Another Delphi Structures Library

Delphi library of standard containers for keeping ordinal and structured datatypes.

  • Quiet
  • Library
  • Delphi
  • SourceForge
  • Mozilla Public License 1.1 (MPL 1.1)

Other

CDDC-DBzManager

CDDC-DBManager is an OpenSource database manager which supports MySQL, PostgreSQL, FireBird, InterBase, Sybase, Oracle, Microsoft Access and Microsoft SQL Server databases servers. Features database structures management, data editor and SQL Query Tool.

  • Quiet
  • Application
  • SourceForge
  • GNU General Public License version 2.0 (GPLv2)

Database

cy.prus

cy.prus is a cross platform simulation environment for medical cybernetics and systems biology. Its purpose is to provide both a facility for simulating life and a GUI for easily constructing biological information processing structures based on XML.

  • Application
  • SourceForge
  • BSD License

Science

Fundamentals Code Library

Collection of Delphi / FreePascal code units. Includes libraries for Unicode, Strings, Data Structures, Sockets and Mathematics.

  • Quiet
  • Library
  • Lazarus and Delphi
  • SourceForge
  • Other License

Other

LGenerics

Collection of generic algorithms and data structures entirely written in/for FPC and Lazarus.

  • Package
  • Lazarus
  • Apache License, Version 2.0

Other In the Online Package Manager

LGenerics

Collection of generic algorithms and data structures for Free Pascal.

  • Library
  • Lazarus

Other

issrc

Inno Setup is an open-source installation builder for Windows applications by Jordan Russell and Martijn Laan. Since its introduction in 1997, Inno Setup has been trusted by developers and organizations of all sizes to reliably deploy software to millions of PCs worldwide.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 5,744

System

awesome-pascal

A curated list of awesome Delphi/FreePascal/(any)Pascal frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff. Open source and freeware only!

  • Active
  • Other
  • Lazarus and Delphi
  • GitHub
  • ★ 2,096
  • CC0-1.0

Learning and Examples

Alcinoe

Alcinoe empowers developers to build fast, modern apps without the usual complexity or performance bottlenecks. It keeps the focus on innovation—not tool constraints—delivering top performance, deep customization, and great cross-platform UX while staying independent of GAFA ecosystems.

  • Active
  • Package
  • Delphi
  • GitHub
  • ★ 1,134
  • Apache-2.0

Other

ProcessMemoryMap

Deep memory analysis for Windows processes — the tool that saves you hours of debugging

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 178
  • MPL-2.0

System

neural-api

CAI NEURAL API - Pascal based deep learning neural network API optimized for AVX, AVX2 and AVX512 instruction sets plus OpenCL capable devices including AMD, Intel and NVIDIA.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 465
  • LGPL-2.1

Science

FastMM5

FastMM is a fast replacement memory manager for Embarcadero Delphi applications that scales well across multiple threads and CPU cores, is not prone to memory fragmentation, and supports shared memory without the use of external .DLL files.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 345

System

Cmulator

Cmulator is ( x86 - x64 ) Scriptable Reverse Engineering Sandbox Emulator for shellcode and PE binaries . Based on Unicorn & Zydis Engine & javascript

  • Archived
  • Application
  • Lazarus
  • GitHub
  • ★ 304
  • AGPL-3.0

Security

fundamentals5

Fundamentals 5 Code Library for FreePascal and Delphi

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 277

Other

pasvulkan

Vulkan header generator, OOP-style API wrapper, framework and prospective Vulkan-based game engine for Object Pascal

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 230
  • Zlib

Bindings Graphics

mb3d

Mandelbulb3D

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 204
  • LGPL-2.1

Graphics

mcx

Monte Carlo eXtreme (MCX) - Physically accurate and validated GPU ray-tracer

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 197

Science

BrookFreePascal

Framework for web applications. Actions for DB access, advanced routing features, wizard for Lazarus, support for i18n, compatibility with JSON structures, REST implementation, plugins for varied needs, extensible brokers.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 174

Networking In the Online Package Manager