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Catalog

30,057 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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persistent-tree

Persistent tree structure written in Pascal that can handle binary data.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 5
  • MIT

Other

hamt

Mutable and immutable persistent maps and sets as hash array mapped trie (HAMT) for FreePascal

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 19

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

neural-api

CAI NEURAL API - Pascal based deep learning neural network API optimized for AVX, AVX2 and AVX512 instruction sets plus OpenCL capable devices including AMD, Intel and NVIDIA.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 465
  • LGPL-2.1

Science

dext

Dext - Modern Full Stack Framework for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 330
  • Apache-2.0

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

InstantObjects

Pupular OOP-OPF Library for Delphi (from DXE6 to latest version)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 107
  • MPL-2.0

Database

MfPack

Delphi translations for Microsoft Media Foundation and related API's

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

Bindings Multimedia

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

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

GHttpsIOCPSvr

Delphi HTTPS server IOCP and Schannel

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

Networking

Badger

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

Networking

taskworker

Task worker thread template

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 5
  • MIT

System

dolphin

A Delphi/Object Pascal ML framework: GPT-style Transformers + GPU training + tabular DataFrames

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 27

Science

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

darest

Darest - Auto-generated REST API from your database schema

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

Database Networking

Delphi-RAG-Lint

Delphi-native, MIT-licensed RAG + linter for Delphi/Pascal source code. Symbol-exact + fuzzy + tree-sitter lint. Pure Delphi at runtime.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 19
  • MIT

Language Tools

maxCron

maxCron: Flexible, lightweight CRON compliant scheduler written in Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 17
  • BSD-3-Clause

Date and Time

NoReflowTabBar

A Delphi VCL tab and button bar component for stable no-reflow multi-row navigation, with zones, headers, signals, glyphs, inline editing and multi-bar drag-and-drop.

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

Tabbed Components

Dlluminator

The sleek new way to load Win64 DLLs straight from memory — no disk, no traces, no limits.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 13

System

Delphi-LitCrypt

Delphi plugin that provides compile-time string encryption

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 11
  • MIT

Cryptography

Lattice

Computer-Assisted Qualitative Data Analysis Software (CAQDAS) for coding textual data, retrieving coded segments, and analysing patterns

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 9
  • AGPL-3.0

Science

UnitConv

Converts units of measurement data

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 9
  • MIT

Science

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

ppm-mcp-tools

Source code for PPM MCP tools — Pascal/Delphi MCP servers for Claude Code

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 7

Networking

Formula4D

A typed formula and business-rule engine for Delphi, with validation, traceable execution, and portable JSON rule packages.

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

Other

ImageWriter

🔥 Disk image writing utility for Windows

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 6
  • GPL-3.0

Files and Drives

Splash

Automated Splash screen that keeps alive and autolearns progressbar speed

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6

Indicators and Gauges

superterm

Native GNU/Linux, macOS, and Windows terminal workspace; shared sessions and SSH on POSIX hosts.

  • Active
  • Application
  • GitHub
  • ★ 6
  • GPL-3.0

Networking

tc-jsontab2

WLX for Total Commander to show and edit JSON

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 5
  • GPL-2.0

Edit and Memos

wdwstate

Window State Components

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 5

Other

zmsql

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 5

Database

Ouress

An Opinionated Underlabouring Research Environment for the Social Sciences

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

Science

sherif-search

Delphi 7 web scraping tool for search engines (Google, Yahoo, Bing, Baidu). Educational project searching multiple engines, filtering domains/languages, and extracting links. Discontinued 2013.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 4
  • GPL-3.0

Networking

tc-xmltab2

WLX for Total Commander to show and edit XML

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

Edit and Memos

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

PasClaude

A terminal coding agent for Windows, written in Free Pascal. No dependencies beyond the FPC RTL.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 2
  • MIT

Applications

cashier-system-pascal

Desktop cashier application built using Lazarus IDE and Object Pascal with dynamic product management and persistent TXT database.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 1

Database Lazarus IDE plugins

delphi-acme-client

A Delphi implementation of the ACME (Automated Certificate Management Environment) protocol for obtaining and managing SSL/TLS certificates from Let's Encrypt and other ACME-compliant certificate authorities.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Cryptography

lazync

Lazync is an open‑source, self‑hosted, cross‑platform file‑sync service built with Free Pascal / Lazarus.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 1
  • GPL-3.0

System

ObjectPascalNotebook

VSCode Notebook by Object Pascal

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • BSD-3-Clause

Other

Phoenix-Net-Generator

Engineer-in-the-loop semantic net generation and schematic automation for Altium Designer.

  • Active
  • Library
  • GitHub
  • ★ 1
  • Apache-2.0

Other

ast-mcp

@mwillbanks/ast-mcp is a zero-trust MCP write boundary for coding agents. It combines deterministic file creation, state-machine-enforced edits, dprint formatting, ast-bro code intelligence, agent skills, and blocking hooks for agents.

  • Other
  • Lazarus
  • GitHub

Other

Dext Framework

. Delphi Modern Full-Stack ecosystem for modern Delphi development. It brings the productivity and architectural patterns of frameworks like ASP.NET Core and Spring Boot to the native performance of Object Pascal.

  • Library
  • Delphi
  • GitHub

Other

graphify

AI coding assistant skill (Claude Code, Codex, OpenCode, Cursor, Gemini CLI, and more). Turn any folder of code, SQL schemas, R scripts, shell scripts, docs, papers, images, or videos into a queryable knowledge graph. App code + database schema + infrastructure in one graph.

  • Other
  • Lazarus
  • GitHub

Other

graphify-okf

Graphify fork that emits OKF-compatible Obsidian vaults

  • Other
  • Lazarus
  • GitHub

Other

ke-graph-bridge

Bridge code graphs with knowledge-engine concepts and dependencies

  • Other
  • Lazarus
  • GitHub

Other

mselang

The Pascal compiler of LLVM.

  • Active
  • Application
  • Lazarus
  • Codeberg

Language Tools