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30,058 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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Markdown4D

Native Delphi Markdown library: CommonMark/GFM parser with public AST, incremental/streaming parsing, HTML renderer, markdown writer, and custom-drawn VCL & FMX viewer/editor components

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 72
  • MIT

Edit and Memos

KBBUILDER

Source code for Knowledge Base builder

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 54

Language Tools

delphi-visual-studio-code-debugger

A debugger for delphi in visual studio code, and also a MCP server to give claude/copilot/etc authonomous delphi debugging capabilities

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Language Tools

MoonCompiler

Delphi 12-compatible Pascal compiler for Win64 and Linux x86-64. Your Delphi code builds on Linux unchanged — and often runs faster. FPC/Unleashed fork with Unicode RTL and bundled memory manager.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 45

Language Tools

LuaDecompiler

Lua bytecode disassembler and decompiler for Lua 5.1, 5.2, 5.3, 5.4, and 5.5 binary chunks.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 41
  • AGPL-3.0

Language Tools

DCU32INT

Its a version of http://hmelnov.icc.ru/DCU/index.eng.html, to support RFindUnit Project

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 31

Language Tools

SedaiBasic

SedaiBasic Interpreter with VM

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 31
  • GPL-3.0

Language Tools

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

Tiger

Tiger is a Delphi-hosted compiler infrastructure that lets you generate native x86-64 binaries for Windows and Linux — executables, shared libraries, static libraries, and object files — entirely from code. There is no source language to parse. Instead, you construct programs using a fluent Delphi API: define types, declare functions.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

Language Tools

maxCron

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

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

Date and Time

NativeAsm

Native x86-64 code generation, JIT execution, SIMD, disassembly, and runtime instrumentation for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • MIT

Language Tools

tpx

TpX: drawing tool for TeX

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 15
  • GPL-2.0

Graphics

Skia4DelphiCanvas

Skia-backed implementation of Vcl.Graphics.TCustomCanvas for Windows/Delphi and FPC on Windows or Linux.

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

Graphics

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

chronokit-fp

ChronoKit-FP is a lightweight toolkit designed to make date and time handling in Free Pascal easier for everyone.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 7
  • MIT

Date and Time

LangVM

LangVM is a Turing-complete language workbench for rapidly building custom programming languages. Using `.lvm` scripts, developers define lexing, Pratt parsing, semantics, MIR, and code generation without recompiling. It can run standalone or embedded in Delphi, enabling fast iteration and native, cross-platform language development.

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 7

Language Tools

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

dn

Data Navigator - modern dual panel file manager implementation

  • Active
  • Application
  • GitHub
  • ★ 4

Files and Drives

NativeGrep

Fast parallel file-search library and CLI for Delphi (Win64), built on NativePattern - literal, fuzzy, masked-hex, and regex search with Unicode-aware matching.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 4
  • MIT

Files and Drives

AgentSkillSearch

Windows desktop tool, that discovers and indexes local SKILL.md files across Git repos, with FTS5 search, optional Ollama semantic rerank, script-aware filtering, and keyboard-first navigation.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3

Applications

lwpt

Lightweight Pascal toolkit

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3
  • MIT

Language Tools

crenshaw-compiler

Jack Crenshaw's 'Let's Build a Compiler!' tutorial implemented in Free Pascal — v1 (Ch 1-10, 68k asm) and v2 (Ch 11-16, TINY 2.1 + stack VM)

  • Active
  • Other
  • Lazarus
  • GitHub
  • ★ 2

Language Tools

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

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

BlaisePascal

Open-source Pascal-to-C++ transpiler with Pascal semantic compatibility. Self-contained distribution with bundled Zig compiler and runtime. Think in Pascal. Compile to C++

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

Other

MyraLang

Myra is a statically-typed, compiled language in the Pascal/Oberon tradition. It transpiles to C++23 and uses Zig as a build backend, producing real x86-64 executables and libraries for Windows and Linux. The backend is invisible. You write Myra. You get binaries. Myra - Pascal. Refined.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Other

NitroPascal

NitroPascal is a full-featured Object Pascal compiler built entirely on top of Parse() - the compiler construction toolkit. It exists to prove a point: a complete, production-quality language can be built with Parse() without touching a parser generator, a lexer generator, or a custom pipeline.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Other

ParseKit

Parse() is a comprehensive Delphi-based toolkit designed to streamline the entire process of compiler construction. By providing a unified API, it allows developers to define a custom programming language’s syntax and logic within a single configuration object. The system manages the complex transition from source text to native binaries.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Other

romitter

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • BSD-2-Clause

Other

Toobit4D

A dependency-light Toobit exchange API client for Delphi and FreePascal

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 1
  • Apache-2.0

Networking Cryptography

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

graphoxide

Native code knowledge graphs for developers and AI agents

  • Other
  • Lazarus
  • GitHub

Other