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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

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

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

kraft

Kraft Physics Engine is an open source Object Pascal physics engine library that can be used in 3D games.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 132

Games and Game Engines

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

VindexLLM

VindexLLM is a pure Delphi, GPU-powered LLM inference engine that uses Vulkan compute shaders to run GGUF models entirely on the GPU. It performs full transformer inference without relying on Python, CUDA, or other external runtimes, requiring only vulkan-1.dll, which is typically included with modern GPU drivers.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 73

Science

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

Javascript4D

A native JavaScript (ECMAScript 5.1) parser and interpreter written in Delphi/Object Pascal. Execute JavaScript code directly from your Delphi applications.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 61
  • MIT

Language Tools

MCPConnect

Building MCP servers with Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 46
  • MIT

Networking

vdisasm

Interactive Disassembler

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 43
  • MIT

Language Tools

keyvast

KeyVast - A key value store

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 35
  • MIT

Database

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

florialib

Helper library for creating Floria Toolkit

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 3
  • MPL-2.0

Other

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

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

Dlluminator

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

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 13

System

ft

A widget toolkit?

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 12
  • MPL-2.0

GUI containers

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

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

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

superterm

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

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

Networking

NppESPHome-Plugin

A Notepad++ plugin to directly interact with ESPHome and manage related projects in Windows environment.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 5
  • MPL-2.0

Edit and Memos

tc-jsontab2

WLX for Total Commander to show and edit JSON

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

Edit and Memos

Designer

A visual form designer for .dfm files. Opens a form outside the IDE and loads the installed design-time packages, so every component is a real instance, no placeholders, and the inspector's rows come from the property editors those packages register. The form editor of Vallenta Studio for VS Code

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 4
  • MIT

Applications

Ouress

An Opinionated Underlabouring Research Environment for the Social Sciences

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

Science

tc-xmltab2

WLX for Total Commander to show and edit XML

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

Edit and Memos

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

RepoPulse

Dirty Little Repos - offers a quick, lightweight way to check status without opening everything.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3
  • MIT

Applications

dbgpPlugin

A DBGP debugger plugin for Notepd++

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

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

LazBle

Cross-platform Bluetooth Low Energy library for Free Pascal and Lazarus.

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

Networking

PasClaude

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

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

Applications

AceUtitlies

A Windows application that actually search Windows for files! What an idea? Also a Windows 11 Notepad replacement and a few other miscellaneous utilites.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 1
  • MIT

Other

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

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

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