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30,058 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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Codrut-Fluent-Design-System

Codrut Fluent Design System is a suite of VCL components for Delphi made to mimic the design language of Windows 11. These are all standard components made to work best with each other.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 61

Other

Codrut-Fluent-Design-System

Codrut Fluent Design System is a suite of VCL components for Delphi made to mimic the design language of Windows 11. These are all standard components made to work best with each other. (mirror)

  • Active
  • Library
  • Delphi
  • Codeberg

GUI containers

QueryBuilder4Delphi

A fluent, type-safe SQL query builder for Delphi 12+. Supports multiple SQL dialects, parameterized queries, composable query construction, and database-independent execution through extensible providers. Includes FireDAC integration and a comprehensive test suite.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 4
  • MIT

Database

delphihtmlwriter

. Delphi Class library that enables the developer to create HTML and HTML documents. It uses the fluent interface to make creating HTML text easy and natural.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9
  • MPL-2.0

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

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

QuickLib

Quick development library (AutoMapper, LinQ, IOC Dependency Injection, MemoryCache, Scheduled tasks, Json and Yml Config and Options pattern, Serializers, etc) with crossplatform support for Delphi/Firemonkey (Windows,Linux,OSX/IOS/Android) and freepascal (Windows/Linux).

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 714
  • Apache-2.0

Other

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

FB4D

Open Source Library for connecting Firebase by Delphi VCL/FMX

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 216
  • Apache-2.0

Database 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

delphi-orm

DORM, the "Delphi ORM" (not actively mantained). Use DMVCFramework and TMVCActiveRecord.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 176

Database

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

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

VSoft.AnsiConsole

A Delphi library for creating engaging console applications

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 71

System

Delphi-WebMocks

Library for stubbing and setting expectations on HTTP requests in Delphi with DUnitX

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 59
  • Apache-2.0

Networking

MCPConnect

Building MCP servers with Delphi

  • 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

FastReportExport

⚡ Biblioteca de exportação de relatórios utilizando Fast Report em ambientes multithreading e não GUI(Graphical User Interface).

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 45
  • Apache-2.0

Reporting

IPGeoLocation

⚡ Biblioteca de geolocalização por IP.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 40
  • Apache-2.0

Networking

Delphi_Utils_Library

A library with some useful utilities for your Delphi Apps.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • BSD-3-Clause-Clear

Other

opcb-object-pascal-component-builder

OPCB – Object Pascal Component Builder A library for fluent creation and configuration of components in Delphi and Lazarus. Enables expressive, hierarchical, and reusable runtime UI construction. Developed by Fabiano Arndt. Copyright © 2025 Fabiano Arndt

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 33
  • Apache-2.0

GUI containers

FastReportPrinter

⚡ Biblioteca de impressão de relatórios utilizando Fast Report em ambientes multithreading e não GUI(Graphical User Interface) usando spooler de impressão.

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

Reporting

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

IFluentInterface

Clean, uncluttered fluent APIs in .NET

  • Quiet
  • Library
  • GitHub
  • ★ 24
  • Apache-2.0

Other

ZLibFramework

⚡ Biblioteca de compressão, descompressão e codificação Base64.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 24
  • Apache-2.0

Files and Drives

Base64Lib

⚡ Biblioteca de codificação e decodificação de dados em Base64.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 23
  • MIT

Other

ExcelExport4D

Fluent Delphi library for exporting TDataSet data to Excel — COM automation or direct OpenXML .xlsx generation under the same API.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 22
  • MIT

Database

florialib

Helper library for creating Floria Toolkit

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 3
  • MPL-2.0

Other

delphi-iot

14 IoT and industrial communication libraries for Delphi 12: MQTT, AMQP 1.0, CoAP, Modbus, STOMP, WebSocket, mDNS/DNS-SD, NMEA, InfluxDB, Prometheus, CBOR, MessagePack, JSON, Serial — 694 tests, no external dependencies beyond Indy

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 20

Networking

GrafanaLokiLogger

⚡ GrafanaLokiLogger is a library designed for integration with Grafana Loki, enabling logs to be sent directly to the API in a simple and efficient manner.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 20
  • Apache-2.0

Networking

d-ORModel

dORModel is an ORM for Delphi, based on models and object fields. LINQ support, fully typed and compile time checks.

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

Database

Tiger

Tiger is a Delphi-hosted compiler infrastructure that lets you generate native x86-64 binaries for Windows and Linux — executables, shared libraries, static libraries, and object files — entirely from code. There is no source language to parse. Instead, you construct programs using a fluent Delphi API: define types, declare functions.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

Language Tools

TSQLBuilder

Biblioteca de SQL fluente (Fluent SQL Builder) em Object Pascal com compatibilidade para Delphi e Lazarus.

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

Database

BuscaCEP

⚡ BuscaCEP é uma biblioteca para consulta de endereços online, permitindo buscas por CEP (Código de Endereçamento Postal) ou por logradouro (UF, Localidade e Logradouro).

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 18
  • Apache-2.0

Networking

pascli

Object Pascal CLI components for ease development of command line applications

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 18
  • MIT

Other

djom

DJOM - Declarative JSON-Object Mapper

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • MIT

Other

Ooogles

Object Oriented OpenGL-ES 2.0

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • BSD-2-Clause

Graphics

VSoft.Process

A Delphi library for running processes and capturing out, interacting with it.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • Apache-2.0

System

Colligo

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 15
  • MIT

Other

LitePascal

Self host Object Pascal compiler with < 8000 sloc

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 14
  • MIT

Language Tools

Telegram4D

Telegram Bot API library for Delphi and Free Pascal

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 13
  • Apache-2.0

Networking

Toon4D

TOON (Token-Oriented Object Notation) support for Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 13
  • MIT

Networking

wfc

wave function collapse algorithm

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 12
  • MIT

Games and Game Engines

cassotis-ime-mac

Cassotis IME for macOS - a native InputMethodKit/AppKit Chinese Pinyin IME with a Free Pascal engine. 言泉输入法 macOS 版 —— 采用 Free Pascal 引擎与 InputMethodKit/AppKit 原生界面的开源中文拼音输入法，支持全拼、简拼、六种双拼，并通过语料训练的本地语言模型与神经重排提升输入质量。

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 10
  • GPL-3.0

System

chsdet

chsdet is a Delphi port of the Mozilla-based charset detector, updated for modern Delphi versions. It detects text encodings from raw bytes, streams, or files and returns a compact result record with the detected charset name, Windows code page, language hint, confidence, and BOM information.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 10
  • LGPL-2.1

Other

deltics.smoketest

Smoketest re-imagined. A lightweight, dependency-free unit testing framework for Delphi, with pluggable result formatting (xUnit 2 OOB)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 10
  • MIT

Language Tools

RESTClientLib

⚡ RESTClientLib é uma biblioteca projetada para facilitar a integração e consulta a APIs REST, é uma solução completa e versátil para quem precisa realizar integrações REST.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 10
  • Apache-2.0

Networking

velox-ui

VeloxUI — High-velocity, zero-dependency Object Pascal (Delphi VCL & Lazarus/Free Pascal LCL) desktop MVVM & Windows 11 Fluent UI micro-framework: DWM Mica, undocumented uxtheme dark scrollbars, GDI+ vector cards, High-DPI control fixers, flicker-free generic OwnerData virtual grids, and NT Kernel helpers.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 8
  • MIT

GUI containers