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Catalog

30,079 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.

delphi-event-bus

Delphi Event Bus (for short DEB) is an Event Bus framework for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 496
  • Apache-2.0

Other

pl_Graphics32

Some of Graphics32 features for 32-bit images. Fast pixel access, ~100x faster than with TBitmap. Bitmap alpha blending. Antialiasing functions with sub-pixel accuracy.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 465
  • GNU Library or Lesser General Public License (LGPL)

Graphics In the Online Package Manager

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

JsonDataObjects

JSON parser for Delphi 2009 and newer

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 460
  • MIT

Other

HtmlViewer

Set of components to display HTML content: THtmlViewer, etc. Supports HTML 4.01, part of HTML 5, many CSS props.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 445
  • Read License.txt

Other In the Online Package Manager

DUnitX

Delphi Unit Test Framework

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 424
  • Apache-2.0

Language Tools

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

cnvcl

CnPack VCL Components

  • Active
  • Package
  • Delphi
  • GitHub
  • ★ 406

Other

noe

A neural network framework (with autograd!) for object pascal 🧠

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 89
  • MIT

Science

loggerpro

An modern and pluggable logging framework for Delphi

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

Other

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

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

DDetours

Delphi Detours Library

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

System

delphi-rest-client-api

A Delphi REST client API to consume REST services written in any programming language.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 385
  • Apache-2.0

Networking

FMXComponents

Firemonkey Opensource Components

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 382
  • MIT

Other

vcl-styles-utils

Extend and improve the Delphi VCL Styles

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 365

Other

delphi-neon

JSON Serialization library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 364
  • MIT

Other

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

superobject

. Delphi FPC Parser/writer for JSON data format. This toolkit is designed to work with Delphi and FreePascal win32, win64, linux32, linux64, macOS Intel. Supports reading/writing XML as well.

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 337

Other

dext

Dext - Modern Full Stack Framework for Delphi

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

Networking

x-superobject

Delphi Cross Platform Rapid JSON

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 330

Other

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

SimpleBaseLib4Pascal

Object Pascal library for encoding/decoding Base16, Base32, Base58, Base64, Base85.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 67
  • MIT

Other

DelphiAST

Abstract syntax tree builder for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 299
  • MPL-2.0

Language Tools

dcef3

. Delphi Embedding Chromium in Delphi, tested on Delphi 2010, XE, XE2, Delphi 7.

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 299

Networking

CPUView

Advanced CPU-View mode for Lazarus

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 65
  • MIT

System

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

cheatengine-library

Cheat Engine Library is based on CheatEngine a debugger and coding environment particularly aimed at games, but can also be used for other purposes like debugging applications and used in schools for teaching how computers work

  • Archived
  • Library
  • Lazarus
  • GitHub
  • ★ 293

System

FortesReport-CE

Report generator (from Brazilian software company). Reports are composed of bands that have specific functions in the print stream.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 289
  • Apache 2.0

Reporting In the Online Package Manager

snap7

Snap7 is an open source, 32/64 bit, multi-platform Ethernet communication suite for interfacing natively with Siemens S7 PLCs.

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 287

Networking

FMXUI

FMX跨平台基础UI库

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 281
  • MIT

Other

TFrameStand

TFrameStand and TFormStand: Delphi FireMonkey (FMX) components to show frames and forms through reusable, animated stands: transitions, dialogs, lightboxes, navigation stack, responsive layouts.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 280
  • MPL-2.0

GUI containers

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

Brook framework

Brook is microframework which helps to develop web Pascal applications.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 278
  • Copyright (c) 2012-2021 Silvio Clecio <silvioprog@gmail.com>

Networking In the Online Package Manager

fundamentals5

Fundamentals 5 Code Library for FreePascal and Delphi

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 277

Other

Tesseract4Delphi

Tesseract4Delphi is a Delphi and Lazarus/FPC component that uses the Tesseract project to recognize text in images (OCR).

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 58
  • MIT

Bindings

GLXEngine

GLXEngine - a graphics engine collector with GLScene & GXScene component packages for Delphi & C++Builder. The class libraries for creating 5D scenes with rendering and animations of spatial objects include managers for supporting physics, sounds, terrains with materials and shaders

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 262
  • MPL-2.0

Graphics

GrijjyFoundation

Foundation classes used by other Grijjy repositories

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 262

Other

WiRL

WiRL: RESTful Library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 258
  • Apache-2.0

Networking

diocp-v5

delphi iocp, http, websocket, ntrip

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 254
  • BSD-2-Clause

Networking

ZServer4D

ZServer4D 是一套从商业项目剥离而出的云服务器中间件,可以承载百万级的分布式负载服务,并且支持IoT及内网穿透

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 254

Networking

Delphi-Mocks

A Open Source Mocking framework for Delphi XE2 or later

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 252
  • Apache-2.0

Language Tools

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

bgrabitmap

📜 BGRABitmap graphics library made with Lazarus (Free Pascal).

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 236

Graphics

TChromeTabs

Comprehensive Delphi implementation of Chrome's tab system

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 234

Tabbed Components

besen

Complete ECMAScript Fifth Edition Implemention in Object Pascal

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 233
  • LGPL-2.1

Language Tools

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

IconFontsImageList

Four advanced components to simplify use of Icon Fonts as images and ImageList: TIconFontImage, TIconFontsImageCollection, TIconFontsVirtualImageList, TIconFontsImageList (for VCL and FMX). Full support for High-DPI apps. Rendering optimized with GDI+

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 229
  • Apache-2.0

Graphics

bcrypt

BCrypt is a password hashing function

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 225
  • MIT

Cryptography

DataSetConverter4Delphi

API to convert JSON objects for DataSet and DataSet to JSON Objects

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 224
  • Apache-2.0

Database

RibbonFramework

Delphi wrapper and standalone Designer for the Windows Ribbon Framework

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 224

Menus

DelphiZXingQRCode

Delphi port of QR Code functionality from ZXing, a barcode image processing library.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 221
  • Apache-2.0

Graphics