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Catalog

30,062 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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LazHIDControl

Cross platform keyboard and mouse input control and window automation in Pascal.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 3

System

5.0 from 1 member

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

lil

LIL (Little Interpreted Language) is a small highly dynamic scripting language inspired by Tcl and unix shells.

  • Package
  • Lazarus
  • GitHub

Language Tools

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

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

FastMath

Fast Math Library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 194

Science

Core

Ultibo Core

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 187

System

NtUtilsLibrary

Delphi library for system programming on Windows using Native API

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 146
  • MIT

System

DelphiZeroMQ

Delphi implementation of ZeroMQ Majordomo protocol and CZMQ high level binding

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 133

Networking Bindings

MicroPXL

MicroPXL is a cross-platform framework for working with peripherals on desktop machines and SBCs

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 24
  • Apache-2.0

System

Codebot.Cross

A cross platform toolkit for Free Pascal and Lazarus

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 77
  • GPL-3.0

Other

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

ShellDelphi

Terminal PowerShell dentro do RAD Studio, via ConPTY. Roda Claude Code, vim e qualquer TUI.

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

Lazarus IDE plugins

tina4delphi

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

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

Networking

fp-idn

IDN and punycode converter (FreePascal)

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 16
  • 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

VSoft.Process

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

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

System

dotenv-fp

A feature-rich dotenv library for Free Pascal: load environment variables from .env files with type-safe getters, validation, interpolation, and zero memory management.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 15
  • MIT

System

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

Lude

Lua 5.1, natively ported to Delphi and FreePascal, implementing the Lua 5.1 C ABI as a drop-in replacement for lua5.1.dll / .so / .dylib

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 11

Language Tools

fpdbus-tools

Free Pascal DBus Wrapper and Code Generation Tools

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 10

Bindings

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

BlaiseVue

The Universal Reactive Framework for Object Pascal. Build modern Web (SPA/SSG), Native Mobile (Android/iOS), and Ultra-light Desktop apps from a single Pascal codebase.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 7

Other

lazarus-mcp-assistant

Bring Anthropic's MCP to Lazarus IDE. Let AI assistants natively code, refactor, debug, and design forms in Object Pascal.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 6
  • BSD-3-Clause

Lazarus IDE plugins

mormot2-ai

mORMot2-based AI/LLM extension for Free Pascal and Delphi: MCP server, LLM clients, embeddings, vector stores, RAG

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

Networking

pascaladt

A library of algorithms and data structures for the Free Pascal Compiler.

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 6
  • LGPL-2.1

Other

tv3

Classes-based Turbo Vision

  • Active
  • Library
  • GitHub
  • ★ 4

Other

spintax-win

Framework-agnostic Spintax engine for Object Pascal — enumerations, permutations, scoped variables, conditionals, plural agreement, includes, full post-processing. Zero dependencies, MIT, Free Pascal 3.2.2+. Parity-gated by the shared golden corpus that also gates @spintax/core.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 3
  • MIT

Other

Yutani-Building-better-worlds

A high-performance, multi-threaded 3D Sandbox & Multimedia Framework for Delphi. Powered by Jolt Physics, Raylib, R3D, SDL3, MiniAudio, TinySoundFont, libmpv, RecastNavigation, VerySimpleLua, GameNetworkingSockets, and Skia4Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 3
  • Apache-2.0

Games and Game Engines

castle-library-model-viewer

Dynamic library (DLL, SO etc.) so load, render and process 3D and 2D models like X3D, VRML, glTF

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 2

Graphics

DAI

DelphiAI - MCP for the Delphi IDE

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MPL-2.0

Lazarus IDE plugins

lispal

lispa, aka "LFP" or "Lisp Flavored Pascal"; is a fast, and embeddable scripting lisp that is fundamentally pascal with lisp syntax. Inspired from LFE (Lisp Flavored Erlang)

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 2
  • MIT

Language Tools

consolesama

Samarinda Console

  • Active
  • Library
  • GitHub
  • ★ 1

Other

dispak-tools

Various tools for OS DISPAK, disassembled/decompiled.

  • Active
  • Library
  • GitHub
  • ★ 1
  • Unlicense

Other

hildi

A small, portable coding and remote agent harness written in Free Pascal.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 1
  • MIT

Other

Phosphor

Phosphor BASIC — an embeddable BASIC interpreter in Free Pascal (FPC/Lazarus). Desktop, MIT. Spiritual successor to Plan9Basic.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 1
  • MIT

Other

ReIDE

ReIDE is an ultra-lightweight, high-performance, and adaptive dark-mode IDE built from the ground up utilizing x86_64 Assembly, Free Pascal (FPC), and Rust. It runs directly on the X11 windowing system with zero heavy dependencies (no electron, no web-tech, no massive UI frameworks)

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 1
  • AGPL-3.0

Edit and Memos

solver-fpc

SOLVER toolset (W.S.C. Gurney) ported to Free Pascal - ODE/DDE solver with CSV/TSV export and plotting

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 1

Charts and Graphs

wmsama

Samarinda DE's Window Manager

  • Active
  • Library
  • GitHub
  • ★ 1

Other

XPascal-XRTL

A modern FreePascal-powered application platform for desktop, web, and server development. Tauri-like mental model, HTML component UI, MVVM, batteries included, CLI-first, CI/CD-first, AI-agent-friendly.

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

Other

pl_0_libs

Libraries needed for ct4laz packages.

  • Package
  • Lazarus
  • Bitbucket

Other In the Online Package Manager

pl_APE

APE (ActionScript Physics Engine) 2D engine.

  • Package
  • Lazarus
  • Bitbucket
  • MIT

Games and Game Engines In the Online Package Manager

pl_AsioVST

Library for digital signal processing. Allows to create VST plugins or ASIO applications.

  • Package
  • Lazarus
  • Bitbucket

Multimedia In the Online Package Manager

pl_Cindy

Packages with 86 components to build rich 32/64 bit applications.VCL controls (labels, buttons, panels, Edits, TabControls, StaticText) with features like background gradient, colored bevels, wallpaper, shadowText, caption orientation etc...TcyCommunicate and TcyCommRoomConnector allows communication between applications running in same computer session.TcySearchFiles and TcyCopyfiles allow respectively search and copy files with pause/resume/abort features.TcyResizer allow move and resize components at run-time like delphi 2009 does.Advanced DB Express components (tested with mySQL) for easy table data handling (tcyDbxTable or TcyDbxSimpleTable), schema modifications (TcyDbxUpdateSql), reconcile handling (TcyDBXReconcileError) and table creation (cyDbxImportDataset1).TcyMathParser can parse matematical expressions.TcyWebBrowser allows view/edit html documents.TcyDbAdvGrid is a DBGrid with advanced feature etc ...

  • Package
  • Lazarus
  • Bitbucket
  • MPL 1.1

GUI containers In the Online Package Manager Orphaned in the Online Package Manager

pl_ExCompress

Library with compression algorythms (compress/decompress): LZMA, ZLib.

  • Package
  • Lazarus
  • Bitbucket
  • GPL

Files and Drives In the Online Package Manager

pl_ExControls

PilotLogic's set of controls. LCD screen controls, Buttons, CheckBoxes, CheckListBox, ComboBoxes, PageControl, ProgressBars, ColorPanel, Gallery, Gauge, Gradients, Rulers, Splines etc.

  • Package
  • Lazarus
  • Bitbucket
  • GPL

GUI containers In the Online Package Manager Orphaned in the Online Package Manager

pl_ExDatabase

ZedDBTreeView: data aware TreeView, designed to load self-referenced hierarchical data sets. Supports browsing and modifications both ways (tree->dataset, dataset->tree).

  • Package
  • Lazarus
  • Bitbucket

ListViews and TreeViews In the Online Package Manager