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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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Atomic-data

Atomic data files for use in NEAT

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 3

Science

atomicparsleygui

Automatically exported from code.google.com/p/atomicparsleygui

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 3

Multimedia

atomicparsleygui

Automatically exported from code.google.com/p/atomicparsleygui

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 2

Multimedia

Atomic Research

Atomic Research is a Battleships variant. The player is a scientist who wants to discover the postion of some atoms on the game board.

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

Games and Game Engines

fpc_atomic

Playable open-source engine recreation of the legendary Atomic Bomberman including Network and Ai https://en.wikipedia.org/wiki/Atomic_Bomberman

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 62

Games and Game Engines

lib.InterlockedOps

Set of functions providing atomic operations (addition, subtraction, exchange, ...) on variables. Created as a replacement and extension of interlocked functions provided by WinAPI.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 6
  • MPL-2.0

System

HFS-SPEKTRUM

Hyperfinestructure physics, simulation of atomic spectra, Lorentz & Gauß frequency profiles

  • Active
  • Application
  • GitHub
  • ★ 1

Science

PaSwap

Pascal Atomic Coin Swap for PascalCoin ver. 5

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1

Networking

Periodic-Table-of-Elements

The Periodic Table is a chart that organizes all known Chemical Elements by increasing Atomic Number (number of protons), with Elements arranged in rows (periods) and columns (groups) that reveal trends in their Chemical and Physical Properties.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Charts and Graphs

ZIRKON

HFS Messwerte ZIRKON - program display_fluodata, FORTH data acquisition

  • Active
  • Library
  • GitHub
  • ★ 1

Science

Delphi-Crash-Reporter

Cross-platform Delphi crash/exception reporter (Linux, macOS, Android, iOS) that emits EurekaLog .el-format reports (open in the EurekaLog Viewer): call stacks, CPU registers, modules, source line numbers. RTL-only core, no FMX dependency, no EurekaLog license required.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9
  • BSD-2-Clause

System

2.0 from 1 member

atominsa

atominsa is a Bomberman-like game, playable in story mode and multi (on screen or networked) up to 8 players. Its gameplay is as close as possible to Atomic Bomberman. An OpenGL engine provides the 3D board and many visual effects.

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

Games and Game Engines

pascal-common-faa

Base library shared by the *-faa libraries for Delphi and Lazarus/FPC: optional/nullable types, portable atomics and monotonic time, monitor and thread pool.

  • Package
  • Lazarus and Delphi
  • GitHub

Other

Diffusion

Computational Experiments in Materials Science. Diffusion in Solids

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • MIT

Science

Burkhard Heim's Mass Formula

Burkhard Heim's Mass Formula - A collection of programs that calculate the mass of a variety of sub-atomic particles, based on work by the late Burkhard Heim. http://www.heim-theory.com/

  • Quiet
  • Application
  • SourceForge
  • Academic Free License (AFL)

Science

MolComp

MOLecular weight and atomic COMPosition calculator. Runs in simple command-line or web interface (as CGI). A visual Tk interface is planned.

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

Science

WAtomic

WAtomic is a Windows clone of Linux KAtomic logic game, developed using the GLScene OpenGl based library for Delphi.

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

Games and Game Engines

MakerAi

The AI Operating System for Delphi. 100% native framework with RAG 2.0, autonomous agents, MCP protocol, and universal LLM connector. Supports OpenAI, Claude, Gemini, Ollama, and more. Delphi 10.4+ (limited), full support from Delphi 12 Athens.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 216
  • MIT

Other

mcx

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

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 197

Science

GpDelphiUnits

A collection of my open sourced Delphi units

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 190
  • BSD-3-Clause

Other

QuickCore

Delphi Core Framework to fast build desktop/mobile/web apps.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 163
  • Apache-2.0

Networking

Suspending-Techniques

Comparing, discussing, and bypassing various techniques for suspending and freezing processes on Windows.

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 139

System

pasmp

PasMP - a parallel-processing/multi-processing library for Object Pascal

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 125

System

QE-SSP

This repository contains example codes for the book: Quantum ESPRESSO Course for Solid‑State Physics, Jenny Stanford Publishing, New York, 372 Pages (2022) by N. T. Hung, A. R. T. Nugraha and R. Saito.

  • Active
  • Other
  • GitHub
  • ★ 98

Science Learning and Examples

Tiny.Library

General purpose low level library for Delphi 7-XE10, FreePascal and C++Builder

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 83
  • MIT

Other

PasClaw

Ultra-lightweight native AI agent framework written entirely in Object Pascal for Delphi and Free Pascal, designed for performance, portability, and extensibility.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 67
  • MIT

Science

TransactionMaster

A tool for Windows that can make any program work within file-system transactions.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 59
  • GPL-3.0

System

SafeThread4D

Fluent, cooperative, UI-safe background task runner for Delphi FMX, with cancellation, timeout, progress, lifecycle callbacks, and optional mobile UI liveness diagnostics.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 46
  • MIT

System

CWStudio-Components-Library

Modern Windows 11 / WinUI 3 (Fluent UI v9) styled VCL components for Delphi / RAD Studio.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • MIT

Other

Delphi_Utils_Library

A library with some useful utilities for your Delphi Apps.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • BSD-3-Clause-Clear

Other

pascal-pipes-faa

Cross-platform inter-process communication for Delphi 12+ (Win64) and FPC/Lazarus (Linux x86_64/ARM64): the same API at three scopes — local IPC (Named Pipe/UDS), TCP and TLS with optional mTLS. Synchronous Request-Reply, topic pub/sub with wildcards and retain, AutoReconnect and thread-safe dispatch (pool/serialized/main thread).

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 6
  • MIT

System

Delphi-Tasks

Small and simple: Thread Pools with Tasks

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 26
  • Unlicense

System

IAMClient4D

IAMClient4D is a Delphi client library for integrating applications with Keycloak, providing full OAuth2/OpenID Connect support (including PKCE), token and user management, and a lightweight asynchronous task framework (Async.Core) for thread-safe operations across VCL and FMX.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 24
  • Apache-2.0

Security Networking

delphi-ide-remote-mcp

An MCP server that turns a Windows RAD Studio machine into a remote backend for coding agents: safe editing, real MSBuild builds, git, scaffolding, deploy & remote run via PAServer, Android (adb), Linux and Windows desktop control, DelphiLSP navigation, vault. Per-workspace security. Built for our own use, shared under MIT; no commercial plans.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 23
  • MIT

Lazarus IDE plugins

DelphiMultithreadingBookCode

Este repositório contém todo o código-fonte dos exemplos práticos do livro "Delphi Multithreading: Threads, Concorrência, Paralelismo e Assincronismo", escrito por Cesar Romero.

  • Active
  • Other
  • Delphi
  • GitHub
  • ★ 23

Learning and Examples

tyro

Lua and other programming in simple platform to make programming fun

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 21
  • MIT

Language Tools

GocciaScript

A sandbox-first JavaScript engine for AI agents: host-set capabilities and limits, deterministic runs, TypeScript annotations, test262 on every pull request.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 20
  • MIT

Language Tools

OpenGammaKit

☢️ KiCad DIY Kit for gamma-ray spectrometer using a popular NaI(Tl) scintillator, SiPM and Raspberry Pi Pico 2.

  • Active
  • Other
  • GitHub
  • ★ 20
  • GPL-3.0

Science

Delphi-RAG-Lint

Delphi-native, MIT-licensed RAG + linter for Delphi/Pascal source code. Symbol-exact + fuzzy + tree-sitter lint. Pure Delphi at runtime.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 19
  • MIT

Language Tools

delphi-utils

A collection of useful Delphi functions- and classes

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 19
  • MIT

Other

hamt

Mutable and immutable persistent maps and sets as hash array mapped trie (HAMT) for FreePascal

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 19

Other

tokio4delphi

High-performance async/await library for Delphi, powered by Rust's Tokio runtime.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

System

maxCron

maxCron: Flexible, lightweight CRON compliant scheduler written in Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 17
  • BSD-3-Clause

Date and Time

pasriscv

PasRISCV is a RV64GCV/RVA23 RISC-V emulator, which is implemented in Object Pascal

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 17
  • Zlib

System

Iterators

Iterator libary for ObjectPascal

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 16
  • BSD-2-Clause

Other

NativeAsm

Native x86-64 code generation, JIT execution, SIMD, disassembly, and runtime instrumentation for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • MIT

Language Tools

threadsafecollections-fp

A thread-safe generic collections library for Free Pascal.

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

Other

dotenv-fp

A feature-rich dotenv library for Free Pascal: load environment variables from .env files with type-safe getters, validation, interpolation, and zero memory management.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 15
  • MIT

System

simplelog-fp

A simple, lightweight, and easy-to-use logging library for Free Pascal applications.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 14
  • MIT

Other

wfc

wave function collapse algorithm

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 12
  • MIT

Games and Game Engines

legacy-delphi-modules

Production-grade Delphi modules for managing logical record locks in legacy enterprise software

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 1

Other