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Catalog

30,060 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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clipper

[mirror] An open source freeware polygon clipping library

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 88
  • BSL-1.0

Graphics

SKIAShellExtensions

Shell extensions for animations files (lottie, telegram, webp...) with Preview Panel, Thumbnail Icon, Lottie Editor. Powered by Skia4Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 87
  • Apache-2.0

Graphics

SII_Decrypt

[DISCONTINUED] Small library/tool designed to decrypt SII files used as saves in truck games by SCS Software. Can be used as DLL, console program, GUI program or directly in a code.

  • Quiet
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 81
  • MPL-2.0

Games and Game Engines

SkeuoCom

SkeuoSimControls is a custom component library for Lazarus/Free Pascal. Built with BGRABitmap, it provides 20+ realistic, skeuomorphic UI controls (gauges, knobs, oscilloscopes, radar, switches) designed for simulation software, audio interfaces, and industrial dashboards.

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

Other

CANcool

Open Source CAN bus Analyser and Simulation Software

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 73
  • MIT

System

McJSON

A Delphi / Lazarus / C++Builder simple and small class for fast JSON parsing.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 72
  • MIT

Other

DzSocket

Delphi Client/Server components to communicate using TCP Socket Asynchronous easily

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 71
  • MIT

Networking

newac

New Audio Components (NewAC) are designed to help your Delphi programs perform different sound processing tasks.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 71

Multimedia

FluentHTML

A library on Pascal, for direct use of HTML tags. Based on HTML5 tags. It can only be used to generate HTML5 Tags, there is no Parse function.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 14

Networking

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

adbmanager

ADB manager for Android devices

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 65
  • GPL-3.0

System

VSoft.Messaging

Simple internal application messaging for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 64

Other

Javascript4D

A native JavaScript (ECMAScript 5.1) parser and interpreter written in Delphi/Object Pascal. Execute JavaScript code directly from your Delphi applications.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 61
  • MIT

Language Tools

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

DelphiCraft

Delphi Minecraft clone based on https://www.michaelfogleman.com/projects/craft/

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

Games and Game Engines

AI-Code-Translator

Translate source code from languages like C++, Python, and C# to Delphi using ChatGPT.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 57
  • MIT

Language Tools

OpenAPIClientWizard

OpenAPIClientWizard – the ultimate plugin for RAD Studio that revolutionizes the way Delphi developers implement REST API clients.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 57
  • MIT

Lazarus IDE plugins

IntXLib4Pascal

Arbitrary Big Integer Library for Pascal

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 56
  • MIT

Other

MultiLog4D

Biblioteca para criação de logs de aplicativos Android

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 55
  • Apache-2.0

Other

CachedBuffers

Extremely fast data streams (Delphi6-XE10)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 54
  • MIT

Other

KBBUILDER

Source code for Knowledge Base builder

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 54

Language Tools

datavalidator

DataValidator foi projetado para ser uma biblioteca simples de validação de dados.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 52
  • MIT

Other

ipub-refit

Simple way to consume REST services

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Networking

TAES

AES encryption and decryption library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 48

Cryptography

log4pascal

A simple logging unit for ObjectPascal (Delphi, FreePascal)

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 47
  • MIT

Other

Tulip_Error_Inline

lightweight Delphi IDE plugin that brings modern, inline error and warning displays directly into the code editor exactly where they happen! at the same line

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 47
  • MIT

Lazarus IDE plugins

unild

Universal Linker Editor

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 47
  • BSD-3-Clause

Language Tools

horse-logger

Middleware for access logging in HORSE

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

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

StaticCodeAnalyser

Static code analysis for Delphi 12 & 13 and Lazarus / Free Pascal. RAD Studio IDE plugin (32/64-bit) + standalone GUI + CLI, one engine. 201 rules (Pascal AST + DFM/LFM forms): leaks, SQL injection, dead handlers, hardcoded secrets, Unicode & Trojan Source, Win64 pointer bugs. SARIF for CI/CD, SonarQube push.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 43

Language Tools

KyoukaiFramework

Web framework like CodeIgniter in Pascal. (In experimental stage).

  • Archived
  • Package
  • Lazarus
  • GitHub
  • ★ 41
  • LGPL

Networking In the Online Package Manager

kyoukai_framework

The Kyoukai (境界), A Simplified Pascal Web Framework

  • Archived
  • Package
  • Lazarus
  • GitHub
  • ★ 41

Networking

mockjsonapi

A mock server for a generic JSON API built with Delphi and delphimvcframework

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 41
  • Apache-2.0

Networking

nats.delphi

Delphi client for NATS, the cloud native messaging system.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 41
  • MIT

Networking

SnapTRAINER

A modular Virtual-PLC Trainer

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

System

TurboUpdate

Very simple autoupdate for your applications!

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 41

Networking

datamodeler

A visual database design and modeling tool written Delphi with support for SQL Server, Firebird, Oracle, PostgreSQL, MySQL, SQLite, and more.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 40

Database

Microsoft365-4D

Delphi library for Microsoft 365 integration. OAuth2 with PKCE, Mail, Calendar, Contacts, and SharePoint via Microsoft Graph API. No external dependencies.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 40
  • MIT

Networking

UnTerminal

Lazarus unit for console process control, with prompt detection.

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 40
  • LGPL-2.1

System

delphi-leakcheck

Multi-platform leak checking library for Delphi

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

System

OverbyteICS

OverbyteICS. Outdated copy of SVN repository

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 38

Networking

benchmark

Delphi port of Google Benchmark

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • 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-ppl

Extend Delphi Parallel Programming Library to ease async coding

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • GPL-3.0

System