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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.

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

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

Core

Ultibo Core

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 187

System

QuickCore

Delphi Core Framework to fast build desktop/mobile/web apps.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 163
  • Apache-2.0

Networking

EasyDBMigrator

EasyDbMigrator is a database migration library designed for Delphi(Microsoft SQL SERVER, Oracle, MySQL, MariaDB, PostgreSQL, and Firebird. https://getitnow.embarcadero.com/EasyDBMigrator

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 155
  • MIT

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

rnl

RNL - Realtime Network Library - The opensource reliable UDP network library

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 90
  • Zlib

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

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

MarkdownProcessor

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

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

Other

duck

The Duck is a migration framework for database versioning

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 36
  • MIT

Database

class-helpers

Directory of Delphi VCL/RTL class helpers

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

Other

Dialog4D

A Delphi FMX dialog mechanism with async flow, per-form FIFO queueing, custom themes, worker-thread await support, and telemetry.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 32
  • MIT

Dialogs

XRechnung-for-Delphi

XRechnung/ZUGFeRD/Peppol BIS Billing Implementation for Delphi and FreePascal

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 31
  • GPL-3.0

Reporting

command-delphi

Command pattern for Delphi (IComand & TComand)

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

Other

NDXSQLite

Thread-safe SQLite wrapper for Free Pascal/Lazarus featuring connection pooling, AES-256 encryption (SQLCipher), schema migrations, async operations, and full TDataSet compatibility. Cross-platform: Linux, Windows, macOS.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 28
  • MIT

Database Bindings

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

delphi-dataproxy

Proxy component for data access TDataSet with Generator App tool and support for Fake memory datasets

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 19
  • MIT

Database

delphi_fake_data_utils

Simple unit to generate fake data for demo, samples, testing etc.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 17
  • Apache-2.0

Other

pas-core-math

Free Pascal based Core Math Implementation

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 15
  • MIT

Science

OmniThreadLibrary-NG

OmniThreadLibrary New Generation — cross-platform Delphi threading library

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 14

System

Delphi-nghttp2

HTTP/2 and gRPC for Delphi and Free Pascal, built on libnghttp2. Framework-agnostic gRPC layer — protobuf codec, service registry, dispatcher, all four RPC shapes — plus a .proto code generator accepting 99.5% of real googleapis schemas. epoll/IOCP event loops, TLS/mTLS, graceful shutdown.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 9
  • MIT

Networking

pastel

Modern cross-platform app framework and toolchain for Object Pascal. One codebase for desktop, mobile, server and Raspberry Pi, powered by Free Pascal.

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

Other

simplejson-fp

A user-friendly JSON library for Free Pascal with automatic memory management.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 8
  • MIT

Language Tools

BlaiseVue

The Universal Reactive Framework for Object Pascal. Build modern Web (SPA/SSG), Native Mobile (Android/iOS), and Ultra-light Desktop apps from a single Pascal codebase.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 7

Other

chronokit-fp

ChronoKit-FP is a lightweight toolkit designed to make date and time handling in Free Pascal easier for everyone.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 7
  • MIT

Date and Time

delphi-forms-parser

[LIB] A standalone Delphi parser for VCL and FMX form files (.dfm/.fmx) in both text and binary formats. Produces a typed AST with full round-trip fidelity for migration, analysis, and code generation workflows.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • MIT

Language Tools

TFFMPEG

Delphi/Pascal FFmpeg bindings and reusable media wrappers

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 5
  • BSD-2-Clause

Bindings

askrcode

Full-stack application framework in Pascal. One binary: HTTP, ORM for Postgres/MySQL/SQLite, migrations, queue, scheduler, auth, and a Svelte 5 component library.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 4
  • MIT

Networking

DelphiAPIStarterKit

DelphiAPIStarterKit is a clean and reusable starter template for building RESTful APIs and web services with Delphi WebBroker. It provides a structured project foundation, routing, request handling, response helpers, and practical examples to speed up backend development.

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

Networking

horse-neon

Neon (RTTI-based JSON serialization) middleware for Horse framework

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

Networking

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

RickWinService

Delphi framework to run the same executable as a VCL/FMX desktop app or Windows Service, with SCM install/uninstall, lifecycle control, admin checks and typed exceptions.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 4

System

tc-xmltab2

WLX for Total Commander to show and edit XML

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 4
  • GPL-2.0

Edit and Memos

TRTMP

TRTMP is a native RTMP framework for Delphi and Free Pascal focused on low-latency ingest, packet-level analysis, bounded buffering, restreaming, and optional live preview.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 4
  • BSD-2-Clause

Networking

Delphi_FormUtils_Library

A library with some useful visual Forms for your Delphi Apps.

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

Dialogs

PasSDL3-GUI

Native retained-mode GUI toolkit for SDL3, written in Object Pascal for Delphi and Free Pascal.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 3
  • MIT

Graphics

quantumshield4d

Post-quantum cryptography for Delphi 7–13. ML-KEM, ML-DSA & SLH-DSA via CNG, OpenSSL 3.5 and liboqs. FIPS 203/204/205 compliant. Auto backend selection. D7-safe, zero external dependencies at compile time. Community Edition (MPL 2.0).

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 3
  • MPL-2.0

Cryptography

SynEdit

SynEdit: syntax highlighting edit control for Delphi (VCL). Maintained by Ethea, continuation of pyscripter/SynEdit (TurboPack SynEdit).

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 3

Edit and Memos

DAI

DelphiAI - MCP for the Delphi IDE

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MPL-2.0

Lazarus IDE plugins

delphi-fiber-runtime

Portable Pascal service runtime: fixed-rate scheduling, native timers, and measured 1 kHz execution. Fiber runtime under development.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

System

delphi-logging-facade

A flexible, SLF4J-inspired logging facade for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Other

dialog4D

Moved to https://github.com/eduardoparaujo/Dialog4D.

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Dialogs

DLogger

  • Active
  • Library
  • GitHub
  • ★ 2

Other

ERD-Card-Toolkit

A Delphi component library for reading and writing smart cards, contactless tags, magnetic stripes and RFID input on Windows.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2

System

Migration4D

Generate Migrations for Delphi and Framework Horse

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 2

Database

MustDevLLM

MustDevLLM - Modern AI Integration Module (Ollama, LM Studio, OpenAI, Gemini, Claude, Qwen, DeepSeek) for Embarcadero RAD Studio (Delphi) with active coding assistant and editor shortcuts.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Networking

pascal-db-faa

Database access layer for Delphi and Lazarus/FPC from the same source: pool, migrations, SQL templates, optional types, SQLdb/FireDAC/Zeos adapters (Firebird, PostgreSQL)

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 2
  • MIT

Database