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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.

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ftRealVNC

This project implements payload plugins over RealVNC 4.0 (aka VNC 4.0). A file transfer payload plugins has been implemented under Delphi 7 by using plugins architecture created by myself. ftRealVNC code is derivated initially from RealVNC 4.0.

  • Application
  • Delphi
  • SourceForge
  • GNU General Public License version 2.0 (GPLv2)

Networking

HABWebAtmosphere

Web app to plot payload descent rate vs altitude for given payload mass and parachute model/size

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • GPL-3.0

Science

horse-dto

Middleware de auto-binding e validação declarativa de dados para o Delphi Horse. Realiza a desserialização automática do payload e executa validações baseadas em atributos customizados antes do controller, eliminando códigos repetitivos (boilerplate).

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 7
  • Apache-2.0

Networking

horse-schema-validation

Middleware de validação de esquemas de dados de entrada (JSON/Payload) no padrão JSON Schema para o framework Horse (Delphi / Lazarus).

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 7
  • Apache-2.0

Networking

delphi_serial_port_streamer

This is demo for rocket payload data streamer simulator transmitter and receiver using Delphi 7

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 2
  • GPL-3.0

System

EosEcc

ECIES Payload Module For EOS

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 1
  • MIT

Cryptography

PascChat

Pascal Coin Chat is a simple example on how to add features to the Pascal Coin with exteral applications. PascChat send messages as a transaction of 0.0001 PASC using the payload for the message. It connects to a running wallet using a JSON-RPC protocol.

  • Quiet
  • Other
  • SourceForge
  • MIT License

Learning and Examples Networking

InsideBlue-BLE-Tool

InsideBlue BLE Tool is a cross-platform Bluetooth LE utility. It can scan for BLE devices showing device information and advert payload as well as connect to devices and access GATT services/characteristics.

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 76
  • MIT

Networking

Blowfish-Base64

Desktop tool to encrypt a string with Blowfish and Base64 encode the result

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 2
  • Apache-2.0

Cryptography

Delphi-Crash-Reporter

Cross-platform Delphi crash/exception reporter (Linux, macOS, Android, iOS) that emits EurekaLog .el-format reports (open in the EurekaLog Viewer): call stacks, CPU registers, modules, source line numbers. RTL-only core, no FMX dependency, no EurekaLog license required.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9
  • BSD-2-Clause

System

2.0 from 1 member

mortar

evasion technique to defeat and divert detection and prevention of security products (AV/EDR/XDR)

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1,513
  • MIT

Security

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

discord-drover

A DLL for forcing Discord to use a specified proxy (HTTP/SOCKS5) for TCP connections. Bypasses local restrictions on voice chats.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 825

Networking

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

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

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

SVGShellExtensions

A collection of extensions tools for SVG files, integrated into Microsoft Windows Explorer (for Windows 10 and 11) and a useful SVG Text Editor

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 205
  • Apache-2.0

Graphics

DelphiZeroMQ

Delphi implementation of ZeroMQ Majordomo protocol and CZMQ high level binding

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 133

Networking Bindings

GrijjyCloudLogger

GrijjyCloudLogger, remote logging for Windows, iOS, Android, macOS and Linux

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 116

Networking

MarkdownHelpViewer

MarkdownHelpViewer is an integrated help system based on files in Markdown format, for Delphi applications, plus a useful component to embed help inside the App.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 94
  • Apache-2.0

Applications

sing-box-drover

Lightweight GUI launcher and tray controller for sing-box on Windows. Quickly toggle system proxy and TUN mode, switch outbound selectors.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 92

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

VSoft.Messaging

Simple internal application messaging for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 64

Other

DelphiAnthropic

The Anthropic API wrapper for Delphi leverages cutting-edge models, including Anthropic's advanced Claude series, to deliver powerful features for chat interactions, vision processing, caching, efficient batch processing, connector MCP, skills and managed agents.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 63
  • MIT

Networking

IAMP

InstallAware (Multi Platform) 2026

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 61

Files and Drives

DelphiGemini

Delphi wrapper for the Google Gemini API: stateless generation and agent workflows with multimodal, streaming, persistent interactions, structured outputs, vector search, batch, image/video generation, and grounding (Search/Maps).

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 52
  • MIT

Networking

GHttpsIOCPSvr

Delphi HTTPS server IOCP and Schannel

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Networking

nats.delphi

Delphi client for NATS, the cloud native messaging system.

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

Networking

Logify

Logify MetaLogger for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 38
  • MIT

System

CWStudio-Components-Library

Modern Windows 11 / WinUI 3 (Fluent UI v9) styled VCL components for Delphi / RAD Studio.

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

Other

Badger

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

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

SipStack

A SIP stack for Delphi, including SDP parsing and an RTP stack.

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 31

Networking

DX.Logger

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

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

Other

DelphiMistralAI

DelphiMistralAI wrapper brings Mistral’s text-vision-audio models and agentic Conversations to Delphi, with chat, embeddings, Codestral codegen, fine-tuning, batching, moderation, async/await helpers and live request monitoring.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 28
  • MIT

Networking

delphi-loop

DelphiLoop - agentic AI loop for Delphi. Multi-agent architecture, LLM integration, RAG - all in native Delphi.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 25

Applications

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-ide-remote-mcp

An MCP server that turns a Windows RAD Studio machine into a remote backend for coding agents: safe editing, real MSBuild builds, git, scaffolding, deploy & remote run via PAServer, Android (adb), Linux and Windows desktop control, DelphiLSP navigation, vault. Per-workspace security. Built for our own use, shared under MIT; no commercial plans.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 23
  • MIT

Lazarus IDE plugins

lazmqttc

A basic MQTT client written in Free Pascal/Lazarus using the Eclipse mosquitto library

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 23
  • 0BSD

Networking

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

LazJWT

Lazarus implementation of JWT

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 22
  • MIT

Security

darest

Darest - Auto-generated REST API from your database schema

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 21
  • MIT

Database Networking

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

installer

One-click installer bundling the Unleashed Pascal compiler + IDE (Windows/Linux)

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 20

Language Tools

pascal-jsonrpc-lite

Parse and Serialize JSON-RPC v2.0 messages in free-pascal or Delphi application. See enhanced version https://github.com/r3code/pascal-jsonrpc-lite-2

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 19
  • GPL-3.0

Networking

pascal-jsonrpc-lite-2

Parse and Serialize JSON-RPC v2.0 messages in free-pascal or Delphi application. Enhanced realizaiton of previous https://github.com/r3code/pascal-jsonrpc-lite

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 18
  • GPL-3.0

Networking

delphi_fake_data_utils

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

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

Other

dmqtt

run in Delphi 10.2(Tokyo), MQTT V3.1.1

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 17
  • MIT

Networking

WebSocket4D

A Windows WebSocket client and server library for Delphi and FreePascal.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 17
  • MIT

Networking

tina4pascal

HTML-driven native apps in Free Pascal — one codebase, six targets, no browser, no widget toolkit

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 16
  • MIT

Networking