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Catalog

30,061 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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one-shot-tools

Single-use programs and utilities, created to solve a specific problem and not usable for anything else

  • Active
  • Application
  • Delphi
  • Codeberg

Applications

G-Code-Flow-Temperature-Controller

A post processing script for OrcaSlicer that demonstrates how automatically adjusting Nozzle Temperature and Flow rate (Print Speed) can significantly improve both print time and quality, while also simplifying slicer settings.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 318
  • MIT

Other

Cmulator

Cmulator is ( x86 - x64 ) Scriptable Reverse Engineering Sandbox Emulator for shellcode and PE binaries . Based on Unicorn & Zydis Engine & javascript

  • Archived
  • Application
  • Lazarus
  • GitHub
  • ★ 304
  • AGPL-3.0

Security

xdpw

XD Pascal: A small embeddable self-hosting Pascal compiler for Windows. Supports Go-style methods and interfaces

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 296
  • BSD-2-Clause

Language Tools

Mad-Pascal

Mad Pascal Compiler for 6502 (Atari XE/XL, C64, C4Plus, Neo6502)

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 167

Language Tools

incarcero

Incarcero is a tool that creates Virtual Machines (VMs) preconfigured with malware analysis tools and security settings tailored for malware analysis without any user interaction.

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 94
  • GPL-3.0

Security

Grace

Sampler VST Plugin for Windows

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 87

Multimedia

DX.Comply

Generate CycloneDX SBOMs for Delphi projects — EU Cyber Resilience Act compliance in one click

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 60
  • MIT

Security

MTN2

Dual-pane keyboard-driven file manager in the spirit of DOS Navigator and Far Manager: built-in console, terminals, viewer and editor, archives, SFTP/FTP/WebDAV/S3, plugins. Delphi, Windows and Linux.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 55
  • MPL-2.0

Files and Drives

xdp

XD Pascal: A small Pascal compiler for MS-DOS

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 52

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

Tracetool

Tracetool viewer, client Api for Dotnet, Java, Javasvript, C++ , Python, Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 45

Language Tools

LazScope

FPC/Lazarus serial oscilloscope

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 34
  • MPL-2.0

Science System

PineEngine

A Pine Script interpreter written in Delphi and Free Pascal, designed to execute scripts and return results as JSON.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 28

Language Tools

GetItManager

A powerful, user-friendly replacement for RAD Studio's GetIt Package Manager CLI - bypasses D13 AccessViolation issues

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 26
  • MIT

Lazarus IDE plugins

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

MultiBuilder

Runs multiple programs in parallel, shows results

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 22

Language Tools

vti

Vortex Tracker Improved

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 18

Multimedia

CodeLibrarian

A small code snippet database

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 17
  • GPL-3.0

Database

mcp-firebird

A Model Context Protocol server for Firebird 2.5 – 5.0, written in Delphi with the official `fbclient` driver. It lets an AI assistant document schemas, analyze query plans, advise on indexes (which to add and which to drop), audit schema health, and drive goal-based optimization. Read-only by default.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 16

Database

LitePascal

Self host Object Pascal compiler with < 8000 sloc

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 14
  • MIT

Language Tools

Delpheed-Delphi-Class-Recovery

A Delphi-aware reverse-engineering toolkit — recover the class model from any Delphi PE, and unpack packed ones to get there.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 12

Security

Atopas

atop as web-mobile-desktop

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 11

System

PB2PAS

PB2PAS is a protocol buffer compiler, that compiles protobufs to Pascal.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 7

Language Tools

IridiumSimulator

Interactive desktop simulator for systems biology

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 6
  • MIT

Science

BeBop

BeBop framework is a development tool to create cross-platform desktop applications using JavaScript, HTML, and CSS.

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 5
  • MIT

Language Tools

novamonitor

Modern, high-performance Delphi & Free Pascal system telemetry and process inspection dashboard (MVVM architecture, High-DPI, Dark/Light theme).

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 5
  • MIT

System

StimSync

Open and versatile software and harware for valitdating timing in psychology experimemts and collecting responses

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 5
  • BSD-2-Clause

Science

StimSync

Firmware + other software useful for using our custom StimSync Device

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 5
  • BSD-2-Clause

Science

OricJoy

Oric Joy is a front end emulator that permit you to play oric games, with your gamepad, and organize them

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

Games and Game Engines

8086-assembler

Cette commande, écrite en Pascal (Turbo Pascal ou Free Pascal), permet de compiler de l'assembleur 8086.

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 3
  • MIT

Language Tools

dos-ShrinkXM

The OBSESSiON XM optimizer, version 1.2

  • Quiet
  • Application
  • GitHub
  • ★ 3

Multimedia

GranularSynth

Free granular + FM synthesizer (VST2/VST3) for Windows, 32/64 bit · Granular- und FM-Synthesizer für Windows

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3
  • GPL-3.0

Multimedia

OFFICE-0

Liste de commandes écrit en Pascal (Turbo Pascal et/ou Free Pascal) pour le bureau

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

Applications

PeXplorer

Some old tool i've made more than twenty years ago. A PE Header explorer. Sharing for anyone who want to acquire indepth understanding of PE Header and how it is used by Windows OS (and also how to hack it).

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

System

soundchunks

GliGli's SoundChunks audio codec (data science / machine learning inspired; trivially simple to decode)

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3
  • GPL-3.0

Multimedia

TyEditor

TyEditor 是一个使用 **Lazarus + TyControls + ATSynEdit** 构建的多标签文本编辑器。

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3
  • Apache-2.0

Edit and Memos

UAC-Bypass

User Account Control (UAC) is a key part of Windows security. UAC reduces the risk of malware by limiting the ability of malicious code to execute with administrator privileges. This article describes how UAC works and how it interacts with the end-users.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3

Security

visum

Laser scanning microscope control GUI. Controls NI hardware cards for image acquisitions including timelapse, zstacks, stitching and saves to a custom bolstered tif format.

  • Quiet
  • Application
  • GitHub
  • ★ 3

Science

vtir

Vortex Tracker Improved - Rust port [VTIR]

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3
  • Unlicense

Other

asmide

Assembler IDE is a visual wrapper for TASM, written in Pascal and Turbo Vision

  • Quiet
  • Application
  • GitHub
  • ★ 2
  • MIT

Edit and Memos

fit

Interactive multi-peak curve fitting for spectroscopy, diffraction and other 1-D data. Place peaks, fit them, compare models by a number. Desktop client plus compute server; 13 built-in lineshapes, user-defined formulas, and new models added by registration.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 2
  • GPL-3.0

Science

gis-viewer

A simple "walking skeleton" of GIS viewer which uses GEOS library

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 2

Science

INFRASTRUCTURES-0

Suite de programme de logiciels de gestion d'infrastructures et d'établissements en Pascal (Turbo Pascal/Free Pascal).

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

Applications

oscilloscope

Wired or blue-tooth oscilloscope using Teensy or Arduino (Processing, Matlab, Xcode, Lazarus)

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 2
  • BSD-2-Clause

Science

pltis_djoin

Lazarus/FPC re-implementation of MS djoin.exe tool

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 2

System

Win32FontLister

A Windows desktop app to display samples from all fonts available, including uninstalled fonts from a specified device or location.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • GPL-3.0

System

AetherOrbits

FMX + Skia demo for Delphi 13: VSync game loop, particle scene, Preferred FPS — Windows, macOS, iOS

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • MIT

Games and Game Engines