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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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TimerInThread

Problem often occuring in reworking legacy code. Timer event requires working message pump, and transferring legacy objects to thread context or service may have hurdles.

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 2
  • Apache-2.0

Learning and Examples

least-squares-method

This is an experiment in reviving legacy code. The original source code was photographed from a printed listing and can be found in the `data/` folder. I modified the code to compile and run on **Turbo Pascal 5.5**

  • Active
  • Library
  • GitHub
  • ★ 1

Other

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

Car

Source code for the rental program CAR written in Delphi. The code is legacy, written for Delphi 7 and might not work with newer versions of Delphi

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Applications

SubSeven

SubSeven Legacy Official Source Code Repository

  • Quiet
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 656
  • Apache-2.0

Networking

command-delphi

Command pattern for Delphi (IComand & TComand)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 29
  • MIT

Other

AUGMENT-Windows-1252-Editor

This is a replacement for the built-in str-replace-editor, if you are dealing with legacy code that is not UTF-8 and could not be migrated!

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 4

Edit and Memos

Firedac-BDE

FireDAC physical driver for the BDE: read and write legacy dBase (DBF) and Paradox tables with modern FireDAC code (Delphi, Win32).

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Database System

ExeShield

Another legacy code for learning purpose. ExeShield is intended to protect a binary (more for commercial apps) by applying a loader/cyper/packer before launching the protected app.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Security

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

LibreCrypt

LibreCrypt: Transparent on-the-fly disk encryption for Windows. LUKS compatible.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 777

Cryptography

GitInfo

Git and SemVer Info from MSBuild, C# and VB

  • Active
  • Library
  • GitHub
  • ★ 654
  • MIT

Language Tools

delphi-jose-jwt

Delphi implementation of JOSE (JSON Object Signing and Encryption) and JWT (JSON Web Token)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 521
  • MIT

Security Cryptography

neural-api

CAI NEURAL API - Pascal based deep learning neural network API optimized for AVX, AVX2 and AVX512 instruction sets plus OpenCL capable devices including AMD, Intel and NVIDIA.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 465
  • LGPL-2.1

Science

FastMM5

FastMM is a fast replacement memory manager for Embarcadero Delphi applications that scales well across multiple threads and CPU cores, is not prone to memory fragmentation, and supports shared memory without the use of external .DLL files.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 345

System

dext

Dext - Modern Full Stack Framework for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 330
  • Apache-2.0

Networking

DelphiOpenAI

OpenAI (and DeepSeek, Azure OpenAI, YandexGPT, Ollama, GigaChat, Qwen) API wrapper for Delphi. Use ChatGPT, DALL-E, Whisper and other products.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 318
  • MIT

Networking

FusionAI

A ChatGPT, Gemini, Claude, and Ollama(offline) plug-in for Embarcadero RAD Studio IDE XE5 to 12.1

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 279
  • MIT

Lazarus IDE plugins

WPP4Delphi

WhatsApp Web component for Delphi and Lazarus. TWPPConnect embeds Chromium through CEF4Delphi and exposes WA-JS messaging, sessions and events to Object Pascal applications.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 252
  • Apache-2.0

Networking

NetCom7

The fastest communications possible. Delphi rulez.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 218
  • MIT

Networking

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

OptixGate

Open-source multi-purpose remote access tool for Microsoft Windows

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 211
  • GPL-3.0

Networking

fhirserver

Reference Implementation Server for the FHIR Specification

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 203

Networking

mcx

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

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 197

Science

Delphi-MCP-Server

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

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

Networking

quantoflx

A desktop customization tool based on Rainmeter

  • Archived
  • Application
  • GitHub
  • ★ 135
  • GPL-3.0

Applications

MarkdownShellExtensions

A Markdown Text Editor to manually edit a markdown file, with instant preview of the output in a HTML Viewer. A Preview handler which allows you to see the content of the markdown file without open it, in the "Preview Panel", integrated into Windows Explorer.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 120
  • Apache-2.0

Edit and Memos

raster-master

Raster Master Sprite/Icon/Map/Animation/Sound editor for Windows 7/8/10/11 Multiple Import/Export formats. Use sprite sheets to import graphics. Create your own sprite sheets. Create modern web games or retro games

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 111
  • MIT

Graphics

ComPort-Library

COM Port Library for Delphi (fork from SourceForge)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 99

System

DelphiGoogleMap

Delphi WebView2 Component to View Google Map with Routing and Markers Support

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 98
  • Apache-2.0

Other

MarkdownHelpViewer

MarkdownHelpViewer is an integrated help system based on files in Markdown format, for Delphi applications, plus a useful component to embed help inside the App.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 94
  • Apache-2.0

Applications

ScannerMApp

A QR code and barcode scanner app built with Delphi and FireMonkey, using ZXing.Delphi and TFrameStand. On Google Play.

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

Applications

OfficeXML4D

Delphi library for reading and writing Office Open XML documents

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 80
  • MIT

Reporting

newac

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

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 71

Multimedia

CoreCipher

Standardized cryptography library for Delphi and FPC. Block ciphers, stream ciphers, and hash functions with unified API. Cross-platform, parallel-ready, no dependencies

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 68

Cryptography

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

FBIntf

This package provides MWA Software's Firebird Pascal API (fbintf). It is intended to provide a standard set of Language Bindings between programs written for the Free Pascal Compiler (FPC) and the Firebird Client API. Both the new Firebird 3 and the legacy API are supported.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 13
  • * Firebird Interface (fbintf)

Database In the Online Package Manager

tfacturaelectronica

Librería hecha en Delphi que implementa la factura electrónica de México (CFDI).

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 65

Other

columbusegg4delphi

A simple framework to correctly write business logic in Delphi "RAD style" applications.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 64
  • Apache-2.0

Other

DX.Comply

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

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

Security

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

MarkdownProcessor

A Markdown Processor Library for Delphi, to process and convert markdown files to HTML.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 56
  • Apache-2.0

Other

delphiguard

Automatic memory management for Delphi using RAII (Resource Acquisition Is Initialization) pattern

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 48
  • Apache-2.0

Other

LiteCatalog

Catalog of open-source, free, and useful applications for Windows / Каталог открытых, бесплатных и полезных приложений для Windows

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 36

Applications

class-helpers

Directory of Delphi VCL/RTL class helpers

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

Other

cpm86-crossdev

CP/M-86 (and MS-DOS 1.1/2.0) cross development environment

  • Active
  • Application
  • GitHub
  • ★ 32
  • MIT

Language Tools

mcp-server-delphi

MCP (Model Context Protocol) server library for Delphi. Built on DMVCFramework, it lets you expose tools, resources and prompts via attributes and RTTI. Supports both HTTP Streamable and stdio transports. MCP 2025-03-26 compliant.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 32
  • Apache-2.0

Networking