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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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OneWaySynchronize

A Windows command line tool for fast one way file and directory synchronization

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1

Files and Drives

Bold for Delphi

. Delphi Model-Driven Architecture MDA framework and ORM. Design your domain model in UML and generate Delphi classes and database schemas. Features OCL Object Constraint Language for queries and derived attributes, automatic UI synchronization, built-in undo/redo, optimistic locking, and object subscriptions. Persistence via FireDAC, UniDAC or XML, supporting most modern databases. This fork adds Unicode and modern Delphi support. Official Embarcadero repo is for Delphi 7.

  • Library
  • Delphi
  • GitHub

Database

DFDataSync

Data Synchronization and Replication Framework for Modern Delphi Applications

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 4
  • MIT

Database

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

LazWebsockets

Websocket Server and Client Library written in Lazarus

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 123
  • BSD-3-Clause

Networking

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

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

BoldForDelphi

Bold for Delphi is a Model Driver Architecture (and ORM library) for Embarcadero Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 156
  • MIT

Database

NtUtilsLibrary

Delphi library for system programming on Windows using Native API

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 146
  • MIT

System

AIO

Coroutine-based multithreading library for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 121
  • Apache-2.0

System

BrainMM

Extremely fast memory manager for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 102
  • MIT

System

Tiny.Library

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

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

Other

ZNet

ZNet is supported by future P2P VM, big data, cloud servers, and SAAS systems

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 64
  • BSD-3-Clause

Networking

MTN2

Dual-pane keyboard-driven file manager in the spirit of DOS Navigator and Far Manager: built-in console, terminals, viewer and editor, archives, SFTP/FTP/WebDAV/S3, plugins. Delphi, Windows and Linux.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 55
  • MPL-2.0

Files and Drives

Delphi_Remote_Desktop

Easy To Use Drag And Drop Desktop Duplication Components (Work In Progress!)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 52
  • MIT

Networking

GHttpsIOCPSvr

Delphi HTTPS server IOCP and Schannel

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Networking

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

DelphiMultithreadingBookCodeEnglishEdition

This repository contains all the source code for the practical examples in the book "Delphi Multithreading: Threads, Concurrency, Parallelism and Asynchronous Programming", written by Cesar Romero.

  • Active
  • Other
  • Delphi
  • GitHub
  • ★ 42

Learning and Examples

SnapTRAINER

A modular Virtual-PLC Trainer

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

System

delphi-leakcheck

Multi-platform leak checking library for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 38
  • Apache-2.0

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

ASTAP

Stacking program, astrometric (plate) solver, fits file viewer

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 24
  • MPL-2.0

Science

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

ZUGFeRD-for-Delphi

ZUGFeRD / Factur-X Implementation for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 23
  • Apache-2.0

Other

Delphi_Audio-Link_Components

Easy To Use Drag And Drop Audio Components For Delphi (Windows OS) Now With Audio Injection Support!

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 21
  • MIT

Multimedia

Updater

Delphi App to synchronize folder contents

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 21
  • MIT

Files and Drives

florialib

Helper library for creating Floria Toolkit

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

Other

skia-flowmotion

Delphi RAD Studio Skia Flowmotion - Animated Image gallery/grid component

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19
  • MIT

Graphics

PascalFramework

Pascal Framework is a foundational library for Free Pascal, Lazarus and Delphi applications.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 1
  • MIT

Bindings Language Tools

GJWTManager

JWT Manager for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9

Security

horse-provider-crosssocket

High-performance, security-hardened CrossSocket provider for the Horse web framework. Replaces the default Indy provider with IOCP/epoll async I/O, an object pool, enforced request limits, and OpenSSL 3.x native TLS.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9

Networking

JEDI_VCS

JEDI VCS (JVCS): sistema de controle de versao para Delphi - cliente, expert da IDE e DLL

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 9

Language Tools

tidykit-fp

A comprehensive toolkit for Free Pascal that provides an easy-to-use, unified interface for common operations. Inspired by C++'s Boost.

  • Archived
  • Package
  • Lazarus
  • GitHub
  • ★ 9
  • MIT

Files and Drives

Validator4D

Fluent form validation mechanism for Delphi FMX.

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

Dialogs

BlaiseVue

The Universal Reactive Framework for Object Pascal. Build modern Web (SPA/SSG), Native Mobile (Android/iOS), and Ultra-light Desktop apps from a single Pascal codebase.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 7

Other

ThreadUtils-for-Delphi

Parallel programming utilities and fixes for Delphi. Includes a few thread-safe data types.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 7

System

dbdesigner-fork

Treat it as an early beta: DB Designer Fork is a fork of the fabFORCE DBDesigner 4. It integrates entity relationship design,front-end (you can run queries) and SQL exporting.DB Designer Fork generates SQL scripts for Oracle, SQL Server, MySQL, FireBird, SQLite and PostgreSQL.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 6

Database

Formula4D

A typed formula and business-rule engine for Delphi, with validation, traceable execution, and portable JSON rule packages.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • MIT

Other

rezvivo

Open-source Zwift alternative in alpha: train on a smart trainer or freely explore OpenStreetMap in 3D. Indoor cycling, interval workouts, walking, free flight and Dream Worlds.

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

Games and Game Engines

Splash

Automated Splash screen that keeps alive and autolearns progressbar speed

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6

Indicators and Gauges

TripManager

Manage the trips on the zūmo XT(2)(3)

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

Applications

NppESPHome-Plugin

A Notepad++ plugin to directly interact with ESPHome and manage related projects in Windows environment.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 5
  • MPL-2.0

Edit and Memos

StimSync

Firmware + other software useful for using our custom StimSync Device

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

Science

zmsql

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 5

Database