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Catalog

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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lmath32

LMath32 is a highly optimized, low-level assembly library that brings robust 32 & 64-bit signed and unsigned integer arithmetic to 16-bit Turbo Pascal applications

  • Active
  • Library
  • GitHub
  • ★ 2
  • MIT

Science

UnleashedPascal-BigInts

Arbitrary-precision integers, decimals and rationals for Unleashed Pascal: signed BigInt, unsigned UBigInt, BigDecimal and BigRational in one dependency-free unit, typically within 1-4x of GMP.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 3
  • MPL-2.0

Science

lib.UInt64Utils

Utility functions for 64bit unsigned integers. Meant mainly for compilers that do not have full native support for this type (eg. Delphi 7).

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 2
  • MPL-2.0

Other

cheat-engine

Cheat Engine. A development environment focused on modding

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 19,439

System

Chet

C Header Translator for Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 227
  • BSD-2-Clause

Language Tools

mcx

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

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 197

Science

DelphiConsole

The Console class from C# ported to Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 143
  • MIT

System

P65Pas

CPU 6502 Pascal Compiler/IDE/Debugger

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 132
  • GPL-3.0

Language Tools

e3

E3: Encrypt-Everything-Everywhere framework for compiling C++ programs with encrypted operands.

  • Quiet
  • Library
  • GitHub
  • ★ 98
  • GPL-3.0

Cryptography

PicPas

Compilador en Pascal para microcontroladores PIC / Pascal compiler for PIC microcontrollers

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 94
  • GPL-2.0

Language Tools

S7-PLC_MySql_MariaDB

MySql and MariaDB communication FB for Siemens PLC S7-1200 and S7-1500

  • Active
  • Other
  • GitHub
  • ★ 62
  • MIT

System

HxD_DasmDataInspectorPlugin

A generic Disassembly Plugin for Maël Hörz's HxD Freeware Hex Editor and Disk Editor.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 60
  • Apache-2.0

System

xdp

XD Pascal: A small Pascal compiler for MS-DOS

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 52

Language Tools

delphi-visual-studio-code-debugger

A debugger for delphi in visual studio code, and also a MCP server to give claude/copilot/etc authonomous delphi debugging capabilities

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Language Tools

UninsIS

Windows DLL to facilitate detection and uninstallation of applications installed by Inno Setup 6 and later

  • Active
  • Library
  • GitHub
  • ★ 44
  • LGPL-3.0

System

SnapTRAINER

A modular Virtual-PLC Trainer

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 41
  • GPL-3.0

System

TDataFile

Binary data storage for Delphi similar to TIniFile

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 22
  • MIT

Files and Drives

Tiger

Tiger is a Delphi-hosted compiler infrastructure that lets you generate native x86-64 binaries for Windows and Linux — executables, shared libraries, static libraries, and object files — entirely from code. There is no source language to parse. Instead, you construct programs using a fluent Delphi API: define types, declare functions.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

Language Tools

DelphiCSPRNG

A cross-platform Cryptographically-Secure Random Number Generator (CSPRNG) for Delphi relying on native operating systems providers.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 18

Cryptography

AudioWerkzeugeBibliothek

A delphi library for audio files: Read basic properties (bitrate, duration, ...) and edit metadata like Artist, Title, Genre, Cover Art, ...

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 17

Multimedia

tina4pascal

HTML-driven native apps in Free Pascal — one codebase, six targets, no browser, no widget toolkit

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 16
  • MIT

Networking

cheat-engine

自用二改CE二改内核优化更新且已绕部分明显特征

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 10

System

DebugTerminal

DebugTerminal

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 10
  • GPL-2.0

System

emul99

Simulator of the TI 99/4A home computer written in Pascal

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 10
  • GPL-2.0

System

TreeStructInfo

API to handle the TreeStructInfo configuration files.

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 10

Other

winpacho

All in one file: Apache, PHP, MariaBD or MySQL for Windows with default SSL-Cert for localhost

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 10

Networking

castle-doom

Doom levels rendered and played with Castle Game Engine (Object Pascal), with a WebAssembly build

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 8

Games and Game Engines

CPaskal

CPaskal Programming Language

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 7

Language Tools

lkJSON

Json Library for Delphi 6+ Originally from Leonid Koninin

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 7
  • GPL-3.0

Other

PCG32-Random

PCG 32bits Random Number Generator

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • MIT

Other

CRC32-Slicing-x64-Asm-Pas

CRC32 Slicing-By-8 Assembler IA-32 & x86-64 / Pascal implementation. IA-32 or x86-64 assembler code has 1,20 CPU clock cycles (on Skylake) per byte of data.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 5

Cryptography

DOS-Game-Engine

DOS Game Engine with VGA and AdLib/SoundBlaster support. Supported formats: PCX, VOC, HSC, TMX, XML

  • Active
  • Library
  • GitHub
  • ★ 5

Games and Game Engines

spec

ZX Spectrum 48K emulator

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 5

System

StimSync

Open and versatile software and harware for valitdating timing in psychology experimemts and collecting responses

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 5
  • BSD-2-Clause

Science

StimSync

Firmware + other software useful for using our custom StimSync Device

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 5
  • BSD-2-Clause

Science

tc-jsontab2

WLX for Total Commander to show and edit JSON

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 5
  • GPL-2.0

Edit and Memos

zmsql

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 5

Database

CodeManager

Gestão de projectos Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 4
  • MIT

Applications

DelphiAPIStarterKit

DelphiAPIStarterKit is a clean and reusable starter template for building RESTful APIs and web services with Delphi WebBroker. It provides a structured project foundation, routing, request handling, response helpers, and practical examples to speed up backend development.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 4
  • Apache-2.0

Networking

graphbuilder-npp

Notepad++ plugin that plots the formula under your cursor

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 4
  • MIT

Edit and Memos

LUX.DICOM

医用画像フォーマット「DICOM:Digital Imaging and COmmunication in Medicine」を扱うためのライブラリ。

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 4

Graphics

SimpleAudio

A SimpleAudio unit for Ultibo

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 4

Multimedia

cheat-engine-cli

AI-native, JSON-first CLI for the Cheat Engine ceserver protocol

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3

System

nxmcp

MCP for NexusDB

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3
  • MIT

Database

pastree-lsp

PasTree LSP Server and Delphi IDE/VS Code LSP clients

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3
  • MIT

Language Tools

PaxLang

Pax is a Pascal/Oberon-inspired systems language that compiles to modern C++23 using Zig’s Clang toolchain, with a pass-through design that lets you mix raw C++ and Pax code freely in the same source file.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3

Language Tools

raybrick

A simple Breakout-style game built with Free Pascal and Raylib

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3
  • MIT

Games and Game Engines

soundchunks

GliGli's SoundChunks audio codec (data science / machine learning inspired; trivially simple to decode)

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3
  • GPL-3.0

Multimedia