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Catalog

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.

PatchEngine

This is a simple patch engine written in Delphi. Support patterns too.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • GPL-3.0

Files and Drives

FMXPersianPatch

Persian patch for Android in FireMonkey

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 10

Other

Manual Docker

There's been a lot of patches and wishes for Messages window to be docked at the source editor of Lazarus IDE. All patches were eventually rejected, because Messages window must be dockable by using Docking manager , that's not yet fully implemented for all widgetset.

  • Library
  • Lazarus

Lazarus IDE plugins

lclpatch

Code to extend the Lazarus Component Library with some useful functions

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 2

Other

PronounsPatcher

xEdit Patcher to insert fallback pronouns for deadlockable scenarios when using they/them pronouns when using the Pronouns mod for Skyrim.

  • Active
  • Library
  • GitHub
  • ★ 1

Other

LGenerics

Generic algorithms and data structures for Lazarus/Free Pascal

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 139
  • Apache-2.0

Other

DDetours

Delphi Detours Library

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 398
  • MPL-2.0

System

DelphiHookUtils

Delphi Hooking Library by Lsuper

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 164
  • MPL-2.0

System

mxpf

An xEdit scripting library that provides a variety of functions for the generation of patches

  • Quiet
  • Library
  • GitHub
  • ★ 44
  • MIT

Games and Game Engines

WS2_32_XP

Windows Socket 2.0 32-Bit DLL Fix for RAD Studio 10.2.2 and above

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 15
  • GPL-3.0

System

System.ByteStrings

Unofficial ByteStrings Patch To Enable AnsiString Support In Delphi Next Generation

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 13
  • MPL-2.0

Other

WKE4Delphi

Fork https://gitee.com/LangjiApp/Wke4Delphi with my patches

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 11

Networking

ProRock

Schema-typed XML for Delphi: generate exact classes from XSD/WSDL, and when the schema changes, regenerate, don’t re-patch. Fast in-place parsing, no DOM.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • Apache-2.0

Language Tools

DEV-PASCAL-BPOS13

Translation of the OS/2 1.3 Header files to Pascal Units for use with the patched Borland Pascal 7.0 compiler.

  • Quiet
  • Library
  • GitHub
  • ★ 3

Bindings

qt4pas-haiku

qt4pas with Haiku patches (remove Qt4 WebKit support)

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 2
  • LGPL-2.1

Bindings

Afterglow-SLACS

Afterglow: SLACS 2 SCO patch for SexLab P+ with 3BA and UBE overlays - sources and tools

  • Active
  • Library
  • GitHub
  • ★ 1

Other

RobCo-Tools

A set of xEdit Scripts that generate RobCo Patcher ini files from esp/esl plugins.

  • Active
  • Library
  • GitHub
  • ★ 1

Other

turbo-pascal-7

Installed and patched Turbo Pascal 7.0 binaries, ready to run

  • Active
  • Library
  • GitHub
  • ★ 1

Other

delphi-zip

Delphi System.zip patch with ZIP64 and LZMA supports

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 93

Files and Drives

KOL

Key Objects Library, v2.00 with custom patch (not locking files by default)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 29

GUI containers

reportman-delphi

Mirror of: Report Manager is both a print scheme designer (report) and a high level printing (reporting) engine. Also a TCP Report Server and a Web Report Server (PDF on the fly), supports Windows and Linux. Connectivity to almost all databases is provided. This is an unofficial mirror of the Report Manager SourceForge repository and is for convenience use only. It is synchronized at irregular intervals. For submitting patches or bug reports, go to https://sourceforge.net/p/reportman/

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 24

Reporting

Spring4D

Mirror of: Spring4D. This is an unofficial mirror of the Spring4D Bitbucket repository and is for convenience use only. It is synchronized at irregular intervals. For submitting patches or bug reports, go to https://bitbucket.org/sglienke/spring4d

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 19
  • Apache-2.0

Other

DSharp

Mirror of: DSharp. This is an unofficial mirror of the DSharp Bitbucket repository and is for convenience use only. It is synchronized at irregular intervals. For submitting patches or bug reports, go to https://bitbucket.org/sglienke/dsharp . It uses the New BSD License https://opensource.org/licenses/BSD-3-Clause

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 7

Other

CodeRedirect

Delphi runtime patch without modifying source code or runtime libraries files

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 6

System

Knockoff

Mirror of: Knockoff. This is an unofficial mirror of the Knockoff Bitbucket repository and is for convenience use only. It is synchronized at irregular intervals. For submitting patches or bug reports, go to https://bitbucket.org/sglienke/knockoff

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 4
  • Apache-2.0

Other

TNT-Unicode-Controls

Unofficial Mirror of TNT Unicode Controls with Patches

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 3

Other

DCPCrypt

Unofficial version of DCPCrypt with Patches

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 1

Cryptography

PasZlib-SG

Unofficial Mirror of PasZlib-SG (http://sageshome.net/oss/paszlib-sg.php) with Patches

  • Quiet
  • Library
  • GitHub
  • ★ 1

Files and Drives

VCL Fix Pack

. Delphi unit that fixes VCL and RTL bugs at runtime by patching the original functions. If you want all IDE Fix Pack fixes in your application this unit is what you are looking for. Adding the unit to your project Delphi and C++Builder automatically installs the patches that are available for your Delphi/C++Builder version.

  • Library
  • Delphi

Other

FMXWindowsDispatch

Allow the FMX windows to process Windows messages

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 7
  • MIT

System

Delphi-Event-Dispatcher

Delphi Event Dispatcher (for short DED) is a publish/subscribe and Multicast Event framework for Cross platforms.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 4
  • Apache-2.0

Other

DDUDispatchEx

Provide IDispatchEx interface an as extended alternative to IDispatch and Variant, using RTTI custom properties to control is and is not published via the interface.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 1
  • Apache-2.0

Other

rtlpatch

Lazarus Package with perhaps useful extensions being missed in the RTL

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 1

Other

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

ATSynEdit

Multi-line editor control, with syntax highlighting, for Lazarus

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 194

Edit and Memos

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

GitInfo

Git and SemVer Info from MSBuild, C# and VB

  • Active
  • Library
  • GitHub
  • ★ 654
  • MIT

Language Tools

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

WebView4Delphi

WebView4Delphi is an open source project created by Salvador Díaz Fau to embed Chromium-based browsers in applications made with Delphi or Lazarus/FPC. WebView4Delphi only supports Windows. If you need to embed a web browser in Linux, Windows or MacOS consider using CEF4Delphi instead.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 417
  • MIT

Networking In the Online Package Manager

MARS

REST framework for Delphi: JAX-RS style resources and routes, servers and clients, JWT, OpenAPI 3, FireDAC and Devart UniDAC/MyDAC/IBDAC, SSE, MCP servers for AI agents. Windows, Linux, Docker.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 400
  • MPL-2.0

Networking

vcl-styles-utils

Extend and improve the Delphi VCL Styles

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 365

Other

dext

Dext - Modern Full Stack Framework for Delphi

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

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

FreeEsVclComponents

Free ErrorSoft Components for Delphi (VCL) & EsVclCore lib

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 190

Other

fibplus

FIBPlus Library for Delphi and C++Builder. Data access components for Firebird & Interbase.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 186

Database

sempare-delphi-template-engine

Sempare Template (scripting) Engine for Delphi allows for flexible dynamic text generation. It can be used for generating email, html, reports, source code, xml, configuration, etc.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 177
  • Apache-2.0

Language Tools

Delphi-LightSaber

Lots and lots of "goodie" functions and 70 visual controls. More than 15 years of development have been put in this library. The library also wants to be a lightweight replacement for the mammoth Delphi Jedi library.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 157

Other

kraft

Kraft Physics Engine is an open source Object Pascal physics engine library that can be used in 3D games.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 132

Games and Game Engines

AIO

Coroutine-based multithreading library for Delphi

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

System

MfPack

Delphi translations for Microsoft Media Foundation and related API's

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

Bindings Multimedia

DelphiDeepseek

The Deepseek API wrapper for Delphi leverages Deepseek’s advanced models to deliver powerful capabilities for seamless and dynamic conversational interactions, including a model optimized for reasoning, and now also supports running local models through an LM Studio server.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 100
  • MIT

Networking

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