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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.

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Echoes.dll

RemObjects Elements Dynamic support for .NET

  • Active
  • Library
  • GitHub
  • ★ 3
  • BSD-2-Clause

Other

diocp-v5

delphi iocp, http, websocket, ntrip

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

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-MCP-Server

Native Delphi Server implementation of the Model Context Protocol (MCP)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 143
  • MIT

Networking

AIO

Coroutine-based multithreading library for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 121
  • Apache-2.0

System

MfPack

Delphi translations for Microsoft Media Foundation and related API's

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 102
  • MPL-2.0

Bindings Multimedia

sugar

Sugar

  • Quiet
  • Library
  • GitHub
  • ★ 88
  • BSD-3-Clause

Other

GHttpsIOCPSvr

Delphi HTTPS server IOCP and Schannel

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

Networking

KyoukaiFramework

Web framework like CodeIgniter in Pascal. (In experimental stage).

  • Archived
  • Package
  • Lazarus
  • GitHub
  • ★ 41
  • LGPL

Networking In the Online Package Manager

kyoukai_framework

The Kyoukai (境界), A Simplified Pascal Web Framework

  • Archived
  • Package
  • Lazarus
  • GitHub
  • ★ 41

Networking

STAX

Singe Threaded Asynchronous Exexcution (STAX) framework for implementing asynchronous event scheduling similar to javascript or python co-routines

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 41
  • BSD-2-Clause

Other

OverbyteICS

OverbyteICS. Outdated copy of SVN repository

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 38

Networking

SynFacilSyn

Scriptable Highlighter for the SynEdit Component of Lazarus

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 38
  • GPL-2.0

Edit and Memos

AdvancedHTTPServer

The go-like http/https server for Lazarus + FPC

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 37
  • BSD-3-Clause

Networking

Badger

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

Networking

pascal-process

Pascal library for running processes and redirecting their output.

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

System

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

AsyncIO

Delphi.AsyncIO library

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

Networking

fastTelega

Delphi library for Telegram Bot API

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 25
  • MIT

Networking

delphi-terminal

[PLUGIN] Dockable terminal panel for RAD Studio with CMD, pwsh, and PowerShell tabs, ANSI color rendering, and command history

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 24

Lazarus IDE plugins

mORMot-MCP-Server

Full MCP 2025-06-18 specification implementation for Delphi with mORMot2

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

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

DelphiMCP

MCP server for Delphi Application debugging and automation from AI side

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 20
  • MPL-2.0

Networking

tina4delphi

Tina4Delphi - A comprehesive set of tools to make REST and application integration better

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 20
  • MIT

Networking

underscript

A Lua extension library that allows to run various scripting languages from within Lua scripts, cross-language require scripts and load 32-bit Lua on Lua 64-bit

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

Language Tools

zAPI

A pure C ABI cross-language RPC framework with zero-IDL, supporting 10+ languages (Pascal, C, C++, Python, Go, Rust, Java, C#, PHP, Node.js)

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

Networking

VSoft.Process

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

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

System

delphi-mqtt

Modern MQTT client for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 15
  • Apache-2.0

Networking

pas-sqlite3

A faithful port of SQLite 3.53.0 (D. Richard Hipp et al.) from C to Free Pascal (FPC 3.2.2+) targeting x86-64 Linux.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 13

Bindings

Telegram4D

Telegram Bot API library for Delphi and Free Pascal

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

Networking

Utils

A general utilities library for Delphi projects

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 12
  • MIT

Other

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

LazarusVision

TUI Framework for Free Pascal using Lazarus LCL pattern for creating Forms/Buttons/Controls

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

GUI containers

poseidon

High-performance async HTTP server for Delphi

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

Networking

LazSerial

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 7
  • LGPL-3.0

System

FastCGIClient

Delphi FastCGI client for php-fpm and etc.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 6

Networking

MCPFramework4D

MCP Server/Client framework for Delphi and Lazarus

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

Networking

EdgeAudio

Voice Activity Detection (VAD)/talkover for Delphi (VCL TEdgeBrowser/WebView2), real-time audio capture and playback via JS bridge, high-pass filter, hysteresis, and an event engine for integrations.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 5
  • MIT

Multimedia

hinotori

Hinotori Library is the rebrand of PopolonY2k Framework now moved to GitHub and open to community collaboration

  • Active
  • Library
  • GitHub
  • ★ 5
  • GPL-3.0

Other

WebSocket4D

Biblioteca cliente + servidor WebSocket em Delphi (Indy 10, RFC 6455), sem dependência do DMVCFramework. MIT.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 5
  • MIT

Networking

pico-fpc

Raspberry Pi Pico SDK conversion from C to Free Pascal for microcontroler RP2040/RP2350.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 4
  • BSD-3-Clause

Bindings

DelphiMCP

Model Context Protocol SDK for Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 3

Networking

duetto

High-throughput WebSocket client and server for Free Pascal: RFC 6455, permessage-deflate and native TLS on Linux, macOS and Windows

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

Networking

AN62

BASE64 without +/= is AN62 ( AlphaNumeric62 )

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Other

Base62

Binary To String(AlphaNumeric Only) for Java, JavaScript

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Cryptography

dbgpPlugin

A DBGP debugger plugin for Notepd++

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • GPL-2.0

Other

MakerAi.ChatTools

MakerAI ChatTools — 29 bridge implementations for IAiWebSearchTool, IAiSpeechTool, IAiVisionTool, IAiImageTool, IAiVideoTool, IAiPdfTool

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2

Networking

SOAP_over_UDP

SOAP over UDP modify from Delphi SOAP framework

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2

Networking

TLibEv

Object-oriented, line-by-line port of libev 4.33 to Delphi and Free Pascal/Lazarus. High-performance event loop with epoll (Linux) and select (Windows) backends: timer, periodic, I/O, signal, child, stat (inotify), idle, prepare/check, fork, cleanup and async watchers.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 2

Networking