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Catalog

30,060 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.

mockjsonapi

A mock server for a generic JSON API built with Delphi and delphimvcframework

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 41
  • Apache-2.0

Networking

nats.delphi

Delphi client for NATS, the cloud native messaging system.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 41
  • MIT

Networking

SnapTRAINER

A modular Virtual-PLC Trainer

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 41
  • GPL-3.0

System

datamodeler

A visual database design and modeling tool written Delphi with support for SQL Server, Firebird, Oracle, PostgreSQL, MySQL, SQLite, and more.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 40

Database

Microsoft365-4D

Delphi library for Microsoft 365 integration. OAuth2 with PKCE, Mail, Calendar, Contacts, and SharePoint via Microsoft Graph API. No external dependencies.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 40
  • MIT

Networking

Delphi_SChannelTLS

Helper functions and socket classes to perform TLS communication by means of WinAPI (SChannel)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 39
  • MIT

Networking Security

xedit-lib

Project to make a DLL exposing XEdit functionality to an application in any language.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 39

Games and Game Engines

DBReader

Database files reader

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 38
  • MIT

Database

kitto3

A Delphi framework for creating data-driven WEB SPA applications with ExtJS 7.x

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 38
  • Apache-2.0

Database Networking

mspeech

Program for speech recognition using the Google Speech API, voice commands, control your computer.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 38

Multimedia

OverbyteICS

OverbyteICS. Outdated copy of SVN repository

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 38

Networking

Delphi_Utils_Library

A library with some useful utilities for your Delphi Apps.

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

Other

DMCPServer

Dinos MCP Server, make your code, on MCP Action and execute by AI

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • MIT

Networking

AllaKore_Remote

AllaKore Remote is an open source software written in Delphi XE6 and Delphi 7.

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 36

Networking

Badger

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

Networking

kitto

A Delphi framework for creating data-driven WEB SPA applications with ExtJS 3.4

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 36

Database Networking

Mosco

macOS app that helps developers, especially those using Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 36
  • MIT

Language Tools

PedPy

Analysis of pedestrian dynamics based on trajectory files.

  • Active
  • Library
  • GitHub
  • ★ 36
  • MIT

Science

swag

Preserving the final release of the SWAG collection of Pascal code and program examples from 1997

  • Active
  • Other
  • GitHub
  • ★ 36

Learning and Examples

duckdb-fp

A clean and intuitive wrapper for DuckDB in FreePascal, providing easy database operations and DataFrame-like result handling.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 35
  • MIT

Bindings Database

dipfs

mount the ipfs distributed file system to a Windows drive via dokan

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 34

Files and Drives Networking

fpTOML

TOML parser for Free Pascal Compiler.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 34

Language Tools

Delphicoin

Bitcoin for Pascal/Delphi programming language !

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • MIT

Cryptography

horse-WS

Middleware for WS in HORSE

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 6

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

Aefos

Aefos - Agent Execution Flow Orchestration System

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 33
  • GPL-3.0

Lazarus IDE plugins

fano

Pascal web application framework

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 33
  • MIT

Networking

GS.Core

Common tools for projects

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 33
  • MPL-2.0

Other

WritingTools

Writing Tools, Apple's AI-inspired app, enchants Windows, enhancing your pen with AI LLMs. One hotkey press, system-wide, fixes grammar, punctuation, and more.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 33
  • MIT

Edit and Memos

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

Envision

Run FLUX2 (klein, dev, base) or ZImage models natively in your Delphi , FPC or Lazarus IDE, written in pure pascal, no dependencies.

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

Graphics

kitto_frozen

A framework for creating data-driven web applications with Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 32

Database Networking

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

osmap

Vector maps engine written on Pascal (Delphi/Lazarus), for OSM maps

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 32
  • LGPL-2.1

Graphics

TLSLib

TlsLib4Pascal is a fully managed, from-scratch TLS 1.2 + TLS 1.3 stack for modern Object Pascal (Delphi and FreePascal), released under the permissive MIT License.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 32
  • MIT License

Cryptography Networking In the Online Package Manager

delphi-anomalies-detectors

A comprehensive Delphi library for detecting anomalies in business data using statistical and machine learning approaches. Designed for real-world applications including fraud detection, system monitoring, data validation, and quality control.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 31
  • Apache-2.0

Science

DelphiJNI

A Delphi/Kylix JNI implementation .

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 31

Bindings

eTasks

Projeto de App mobile e desktop para gerenciamento de tarefas e metas com foco na produtividade e no bom humor. Será oferecido para as plataformas Windows (32 bits e 64 bits) e Android (32 bits). Há planos de se disponibilizar o aplicativo para download nas lojas de aplicativos. O maior objetivo é servir como aprendizado e treinamento das habilidades de programação em Delphi, sendo empregue uso de MVC, interfaces, Firebase e outros.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 31
  • MIT

Applications

mxLore

Self-hosted MCP server for AI coding assistants. Persistent knowledge base with 45 tools, 12 skills, institutional memory.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 31

Applications

SedaiBasic

SedaiBasic Interpreter with VM

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 31
  • GPL-3.0

Language Tools

steampipe-mod-kubernetes-compliance

Run individual controls or full compliance benchmarks for NSA CISA Kubernetes Hardening Guidance across all of your Kubernetes clusters using Powerpipe and Steampipe.

  • Active
  • Library
  • GitHub
  • ★ 31
  • Apache-2.0

Security

WebSocket.pas

Object Pascal WebSocket Client & Server Library

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 31
  • MIT

Networking

DX.Logger

Minimalistic cross-platform logging library for Delphi with extensible provider architecture

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 30
  • MIT

Other

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

NetChatLink

A small application that links chat messages across multiple DC hubs and IRC channels

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 5

Networking

express

Simple REST Server Framework

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 29

Networking