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30,059 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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MRIcroGL10_OLD

DEPRECATED development has moved to https://github.com/rordenlab/MRIcroGL

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 62
  • BSD-2-Clause

Science

SliFractal

Draw a Mandelbrot set fractal, written in Turbo Delphi (using scanline). Now deprecated, see README.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • GPL-3.0

Other

PushSharp-Anywhere

Deprecated: This project demonstrates the usage of the PushSharp .NET SDK for simple and efficient management of multiplatform (IOS, Android and Windows Phone) Push Notification services. This solution consists a couple of separate projects including shared processor libraries. A Web .NET MVC5 app and a Desktop Windows Forms app used for monitoring and handling push notifications.

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 14
  • Apache-2.0

Learning and Examples

ipbin-creator

This tool generates an IP.BIN bootstrap for any homebrew software targeting the Sega Dreamcast, through a nice-to-use wizard. A console version is also available. This tool is deprecated, you may use IP creator (makeip) instead, which is part of KallistiOS.

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

Files and Drives

nitroServer

Graveyard for old, deprecated projects... R.I.P. :(

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 5

Other

RoYa

RoYa is an instant messaging robot server. This software provides automatic response to IM questions in an interactive fashion as a human would respond would interact with IM users. In effect, RoYa behaves as an instance of a IM client to the IM services such as Yahoo IM. (2002-2008) [DEPRECATED]

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 3

Networking

VMCL

[DEPRECATED - DO NOT USE] Library for static-size vectors and matrices manipulations and calculations. Also includes test suite that can be run in console application.

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 2
  • MPL-2.0

Science

COR

CellML environment for Windows (now deprecated in favour of OpenCOR).

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 1

Science

ion

*DEPRECATED* Interface of Nature

  • Archived
  • Other
  • GitHub
  • ★ 1
  • GPL-3.0

Other

lib.FloatUtils

Provides utilities for work with floating point numbers. Combines functionality from libraries Float80Utils and Float16Utils (which are now deprecated) and adds some new things.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 1
  • MPL-2.0

Other

Supercopier

Deprecated, replaced by Ultracopier

  • Other
  • Lazarus
  • GitHub

Other

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

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

SVGIconImageList

Four engines to render SVG (Delphi Image32, SVGMagic, Skia4Delphi, Direct2D wrapper) and four components to simplify use of SVG images (resize, fixedcolor, grayscale...) for VCL and FMX platforms.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 399
  • Apache-2.0

Graphics

LAMW

Lazarus Android Module Wizard. IDE wizard to create Android modules (.so) and packages (.apk).

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 294
  • LGPL

Lazarus IDE plugins In the Online Package Manager

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

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

Lape

Scripting engine for Lazarus/Delphi with a Pascal derived syntax.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 143
  • GNU Lesser GPL

Language Tools In the Online Package Manager

Clipper

Polygon and line clipping and offsetting library (C++, C#, Delphi) by Angus Johnson. Forked from https://sourceforge.net/projects/polyclipping. I prepared a "Release" branch (containing C# source only) for submodule usage.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 114
  • BSL-1.0

Graphics

SwagDoc

Create a public documentation REST API using Swagger 2.0 or Open API 3.2.1 for Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 108
  • Apache-2.0

Networking

MfPack

Delphi translations for Microsoft Media Foundation and related API's

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 102
  • MPL-2.0

Bindings Multimedia

DcefBrowser

Delphi Browser Framework, Package Dcef3

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 99

Networking

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

clipper

[mirror] An open source freeware polygon clipping library

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

Graphics

DelphiGenAI

The GenAI API wrapper for Delphi seamlessly integrates OpenAI’s latest models (gpt-5 serie), delivering robust support for agent chats/responses, text generation, vision, audio analysis, JSON configuration, web search, and asynchronous operations. Image generation with gpt-image-2. Skills and agents

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 88
  • MIT

Networking

dglOpenGL

Delphi / Pascal OpenGL header translation (including WGL and GLX)

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 88
  • MPL-2.0

Bindings Graphics

SmartSetApps

SmartSet apps for keyboards, foots pedals and more

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 81
  • GPL-3.0

System

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

DX.Comply

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

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

Security

WingetPosh

Winget helper written in Powershel

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 60
  • MIT

System

MarkdownProcessor

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

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

Other

LKSL

LaKraven Studios Standard Library

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 52

Other

OverbyteICS

OverbyteICS. Outdated copy of SVN repository

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 38

Networking

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

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

sysinfo

System Information Unit

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 32

System

gmlib_v2

Google Maps Library v2 is an open source library that encapsulates the Google Maps API.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 30

Graphics

vx

Simple Volume Renderer

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 30

Graphics

jsonDoc

JSON object for Delphi based on IUnknown and Variant

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 29
  • MIT

Language Tools

ryulib-delphi-old

My Delphi library collections.

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 27
  • MIT

Other

Oz-SGL

Standard Generic Library (SGL) for Pascal using records with heap memory allocator and typed memory regions.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 25
  • Apache-2.0

Other

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