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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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hUGETracker

The music composition suite for the Nintendo Game Boy

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 375

Multimedia

WordStats

Word Stats is a composition analyzer software designed to generate statistical information about English compositions.

  • Quiet
  • Application
  • GitHub
  • ★ 3
  • GPL-3.0

Edit and Memos

delphi-mvp-clean-architecture

Projeto de referência em Delphi aplicando MVP (Passive View), Clean Architecture, SOLID, Injeção de Dependências (Composition Root), Pool de Conexões nativo FireDAC, DevExpress VCL e Testes Automatizados com DUnitX.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Database

geoxdraw

delphi application for drawing diagrams from composition data on rocks and minerals

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1

Science

HuMuS

HuMuS (the Human Music Surface) is an integrated environment for (real-time) sequencing and composition. Based on the WiSeSLAp widget set and other existing technologies. Visit our trac wiki for more information: http://sourceforge.net/apps/trac/humus/

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

Multimedia

Ramugen : Random Music Generator

Ramugen is a music application which assists in / automates composition along stochastic/indeterminate lines. Comes as a Win32 desktop application and a Borland Delphi component-package. Open Source : full source-code and documentation provided. Very fle

  • Quiet
  • Application
  • Delphi
  • SourceForge
  • Artistic License, GNU General Public License version 2.0 (GP

Multimedia

PXLComponents

Wrapper component for PXL graphics library

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 18
  • MPL-2.0

Graphics

Widget

Delphi Widget is a composition fluent mode to build cards, forms and menus. Inspired by Material design.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 5
  • GPL-3.0

GUI containers

ProposalDissertation

The program is a research complex that solves the problem of drawing up a plan for the purchase of spare parts. As part of the program, a comprehensive simulation model of the reliability structure of a technical object has been implemented. This model allows you to calculate the reliability indicators of various components of a complex technical object, taking into account the process of operation of this object. Implemented the task of the sequence of switching on, off and options for using various parts. Particular attention is paid to the failure detection process, therefore, the inspection process (planned, overhaul, etc.), installation and dismantling of equipment is also taken into account. Further, the transport system of a modern service system with the participation of manufacturers, repair plants and consumers is taken into account. To draw up an application for production, a modification of the ant colony method is used, carrying out a targeted enumeration of the options for purchasing materials with the determination of their quantity. For a specific application, the performance indicators of the equipment are evaluated. A set of Paretos is built from the results. Test example based on the air conditioning and pressure control system TU-154. Aircraft in the composition of 20 pieces, distributed over the territory of Russia.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1

Science

subz3ro's Adlib Tracker II (OSP)

DOS version: Source code to be compiled with TMTPC 3.9x or higher and TASM 3.x or higher SDL (Win32/Linux) version: Source code to be compiled with FPC 2.6.x or higher, GCC 4.x.x or higher and JWASM 2.xx or higher

  • Application
  • Lazarus
  • SourceForge
  • Fair License

Multimedia

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

Re-face

In the manual improvement of hexahedral elements, faces belonging to incomplete elements are subject to loss during two format conversion steps. Re-face retrieves the lost faces, restoring the composition and integrity of the parent mesh.

  • Quiet
  • Application
  • SourceForge
  • GNU General Public License version 3.0 (GPLv3)

Science

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

MORMot2

Synopse mORMot is an Open Source Client-Server ORM SOA MVC framework for Delphi 6 up to Delphi 10.3 Rio and FPC, targeting Win/Linux for the server, and any platform for clients (including mobile or AJAX).

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 733
  • MPL, GPL or LGPL

Database In the Online Package Manager

cassotis-ime

Cassotis IME - a native Delphi/TSF Chinese Pinyin IME for Windows 10/11. 言泉输入法 —— 基于 Delphi/TSF 的 Windows 10/11 原生开源中文拼音输入法，支持全拼、简拼、六种双拼，并通过语料训练的本地语言模型与神经重排提升输入质量。

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 302
  • GPL-3.0

System

Delphi-MCP-Server

Native Delphi Server implementation of the Model Context Protocol (MCP)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 143
  • MIT

Networking

Delphi-Promises

Delphi implementation of promises for asynchronous programming.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 121
  • MIT

Other

SIMsalabim

A 1D drift-diffusion simulator for semiconductor devices (LEDs, solar cells, diodes, organics, perovskites)

  • Active
  • Application
  • GitHub
  • ★ 92
  • GPL-3.0

Science

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

sturdy

Sturdy is a library for developing sound static analyses in Haskell.

  • Quiet
  • Other
  • GitHub
  • ★ 64
  • BSD-3-Clause

Other

DX.Comply

Generate CycloneDX SBOMs for Delphi projects — EU Cyber Resilience Act compliance in one click

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 60
  • MIT

Security

AErender-Launcher

GUI for Adobe After Effects aerender console interface with various features

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 54
  • MIT

Multimedia

TScene

Isolated buffered container control for FireMonkey

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 52
  • MPL-2.0

GUI containers

DelphiBlend2D

Blend2D for Delphi: language bindings and framework for Blend2D

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 50
  • Zlib

Bindings Graphics

FidoLib

A Delphi (10.4.1+) library

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 48

Other

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

MoonCompiler

Delphi 12-compatible Pascal compiler for Win64 and Linux x86-64. Your Delphi code builds on Linux unchanged — and often runs faster. FPC/Unleashed fork with Unicode RTL and bundled memory manager.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 45

Language Tools

Logify

Logify MetaLogger for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 38
  • 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

class-helpers

Directory of Delphi VCL/RTL class helpers

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 35
  • MIT

Other

Aefos

Aefos - Agent Execution Flow Orchestration System

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 33
  • GPL-3.0

Lazarus IDE plugins

RetroMul

A cross-platform, extendable, multi-emulator written by Delphi FMX

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 25
  • MIT

Games and Game Engines

Blen2d4Delphi

Blen2d4Delphi is alive again, which was started by #neslib (Erik van Bilsen: https://github.com/neslib/DelphiBlend2D)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 19

Bindings Graphics

dafce

DAF, Delphi Application Foundations (Community Edition)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

Other

DelphiStabilityAI

The Stability API wrapper for Delphi utilizes advanced models developed by Stability.ai to provide capabilities for seamless image, video, and 3D generation, as well as sophisticated editing and upscaling tools, tailored for creative and professional use.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 18
  • MIT

Networking

PasTemplates

A Go text/template-compatible templating system for Lazarus/FPC

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 16
  • BSD-3-Clause

Other

SedaiAudio

Sedai Audio Foundation - Professional audio synthesis library in Free Pascal. 5 Synthesis Engines: Classic/Subtractive, FM (DX7-style), Wavetable, Additive, SID Evo.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 16
  • GPL-3.0

Multimedia

VSoft.Process

A Delphi library for running processes and capturing out, interacting with it.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • Apache-2.0

System

tpx

TpX: drawing tool for TeX

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 15
  • GPL-2.0

Graphics

wfc

wave function collapse algorithm

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

Games and Game Engines

ARLibs

Experiments and code that I would like to put in production applications

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 11

Other

AstrobloQ

AI Fermi Paradox Simulator

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 10
  • MPL-2.0

Science

cassotis-ime-mac

Cassotis IME for macOS - a native InputMethodKit/AppKit Chinese Pinyin IME with a Free Pascal engine. 言泉输入法 macOS 版 —— 采用 Free Pascal 引擎与 InputMethodKit/AppKit 原生界面的开源中文拼音输入法，支持全拼、简拼、六种双拼，并通过语料训练的本地语言模型与神经重排提升输入质量。

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 10
  • GPL-3.0

System

PCMAudio

PCM Audio Backend

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 10
  • MIT

Multimedia

cassotis-ime-linux

Cassotis IME for Linux - a native IBus/Fcitx 5 Chinese Pinyin IME derived from Cassotis IME. 言泉输入法 Linux 版 —— 衍生自 Cassotis IME、采用 Free Pascal 引擎并原生支持 IBus/Fcitx 5 的开源中文拼音输入法，支持全拼、简拼、六种双拼及语料训练的本地模型重排。

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 9
  • GPL-3.0

System

DelphiKeyboard

IME에 의존하지 않는 두벌식 한글 조합 오토마타 내장 Delphi VCL 가상 키보드

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9
  • MIT

System

Skia4DelphiCanvas

Skia-backed implementation of Vcl.Graphics.TCustomCanvas for Windows/Delphi and FPC on Windows or Linux.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 9
  • MIT

Graphics

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

PascalType2

Mirror of the PascalType2 repository on Gitlab: https://gitlab.com/anders.bo.melander/pascaltype2

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 8
  • MPL-2.0

Graphics

evil-mail

Delphi 7 bulk email sender with SMTP support. Manages recipient lists, attachments, HTML message preview, SSL/TLS encryption, and multi-send queue. Educational security tool. Discontinued 2013.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 6
  • GPL-3.0

Networking

Keystone

Sistema de login/cadastro full-stack - Vue 3 + API REST em Delphi (Horse) + SQL Server, com senhas em hash e auditoria de alterações

  • Active
  • Other
  • Delphi
  • GitHub
  • ★ 6

Database

SkillsORM

# SkillsORM — Skills Pack para desenvolvimento Delphi/FPC com IA

  • Active
  • Other
  • Lazarus and Delphi
  • GitHub
  • ★ 5

Other

PasSDL3-GUI

Native retained-mode GUI toolkit for SDL3, written in Object Pascal for Delphi and Free Pascal.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 3
  • MIT

Graphics

ERD-Card-Toolkit

A Delphi component library for reading and writing smart cards, contactless tags, magnetic stripes and RFID input on Windows.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2

System