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Catalog

30,060 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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lib.FastLocks

Non-blocking synchronization objects based on interlocked functions operating on locking flag(s).

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 7
  • MPL-2.0

System

legacy-delphi-modules

Production-grade Delphi modules for managing logical record locks in legacy enterprise software

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 1

Other

mced

Package for coding and decoding files with Matheos algorithm from commandline or console in Linux/Unix Environment. Based on Keys stored in files or as hardware locks (on devices). Fast and strong coding. Fast encoding.ONLY BINARY PACKAGES FOR NOW!

  • Quiet
  • Application
  • SourceForge
  • Public Domain

Cryptography

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

BlockstackPascal

The Blockstack Pascal library for identity, auth and storage

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 19
  • MIT

Networking

blocks

Download, compile, and install versioned Delphi packages from GitHub into the IDE

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 18
  • Apache-2.0

Lazarus IDE plugins

GorillaBlocks

A vibe coded clone of the famous 80's puzzle game. The game uses the Gorilla3D Firemonkey Addon Framework for Delphi / C++ Builder.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • CC0-1.0

Games and Game Engines

quablocks

A revolutionary new game which allies simplicity and strategy in wich you can compete against other players.

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

Games and Game Engines

Falling blocks

'Falling blocks' is just another tetris game, but you will be able to draw your own pieces if you want to.

  • Application
  • SourceForge
  • GNU General Public License version 2.0 (GPLv2)

Games and Game Engines

BrainMM

Extremely fast memory manager for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 102
  • MIT

System

FluentHTML

A library on Pascal, for direct use of HTML tags. Based on HTML5 tags. It can only be used to generate HTML5 Tags, there is no Parse function.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 14

Networking

QuickView-3.0

Fast and lightweight tiny image viewer with transparency

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 47

Graphics

StaticCodeAnalyser

Static code analysis for Delphi 12 & 13 and Lazarus / Free Pascal. RAD Studio IDE plugin (32/64-bit) + standalone GUI + CLI, one engine. 201 rules (Pascal AST + DFM/LFM forms): leaks, SQL injection, dead handlers, hardcoded secrets, Unicode & Trojan Source, Win64 pointer bugs. SARIF for CI/CD, SonarQube push.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 43

Language Tools

SnapTRAINER

A modular Virtual-PLC Trainer

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

System

STAX

Singe Threaded Asynchronous Exexcution (STAX) framework for implementing asynchronous event scheduling similar to javascript or python co-routines

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 41
  • BSD-2-Clause

Other

AdvancedHTTPServer

The go-like http/https server for Lazarus + FPC

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 37
  • BSD-3-Clause

Networking

Badger

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

Networking

RxDelphi

Reactive extension for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 30
  • Apache-2.0

Other

Delphi-Tasks

Small and simple: Thread Pools with Tasks

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 26
  • Unlicense

System

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

tyro

Lua and other programming in simple platform to make programming fun

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 21
  • MIT

Language Tools

tokio4delphi

High-performance async/await library for Delphi, powered by Rust's Tokio runtime.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

System

Boss4Delphi

Gerenciador de dependências nativo, moderno e leve para projetos Delphi, desenvolvido sob arquitetura hexagonal e com suporte a downloads concorrentes.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 17
  • Apache-2.0

Language Tools

OmniScope

This Zig-based LLVM analysis framework focuses on static unsafe/ffi boundary analysis.

  • Active
  • Other
  • GitHub
  • ★ 17
  • Apache-2.0

Language Tools

SedaiAudio

Sedai Audio Foundation - Professional audio synthesis library in Free Pascal. 5 Synthesis Engines: Classic/Subtractive, FM (DX7-style), Wavetable, Additive, SID Evo.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 16
  • GPL-3.0

Multimedia

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

wfc

wave function collapse algorithm

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 12
  • MIT

Games and Game Engines

PascalFramework

Pascal Framework is a foundational library for Free Pascal, Lazarus and Delphi applications.

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

Bindings Language Tools

JEDI_VCS

JEDI VCS (JVCS): sistema de controle de versao para Delphi - cliente, expert da IDE e DLL

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 9

Language Tools

poseidon

High-performance async HTTP server for Delphi

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

Networking

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

Validator4D

Fluent form validation mechanism for Delphi FMX.

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

Dialogs

DelphiConcurrent

Delphi Concurrent Anti-DeadLock MultiRead FrameWork

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 8

System

nc-amp

nc-amp - a native Free Pascal/Lazarus music player for Windows and macOS with a classic Winamp-style look. 基于 Free Pascal/Lazarus 的 Windows / macOS 原生开源音乐播放器，经典 Winamp 风格界面，支持 MP3、FLAC、APE（含 CUE）、WAV、Ogg、Opus、M4A 等格式，拖入即随机循环播放。

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 8
  • GPL-3.0

Multimedia

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

Memory-DLL-Loader

Simple, Easy, Reliable Implement To Load DLLs From Memory Stream In Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6

System

MonoLexID

Time-ordered and sortable UUID generator that privileges intra-millisecond monotonicity and produces UUIDv7-compatible identifiers

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 5
  • BSD-3-Clause

Other

AUGMENT-Windows-1252-Editor

This is a replacement for the built-in str-replace-editor, if you are dealing with legacy code that is not UTF-8 and could not be migrated!

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 4

Edit and Memos

censor

Scheduled Website Blocker (Parental Control)

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

Networking

dbxoodbc

Universal Pure Pascal dbExpress (DBX4) driver for ODBC. Zero-DLL, dual Win32/Win64, seamlessly connecting Delphi to SQL Server, PostgreSQL, MySQL, SQLite, Oracle, and any ODBC source.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 4

Database

MemSpeedTest

This is a just a test project that can be used to stress test and benchmark different memory managers.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 4
  • BSD-2-Clause

System

Ouress

An Opinionated Underlabouring Research Environment for the Social Sciences

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

Science

pinball-trainer-plus

Delphi 7 game trainer educational project. Memory manipulation tool for learning reverse engineering concepts. Discontinued 2013.

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

System

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

whatthelock

What The Lock is a tool that integrates into Windows shell components (i.e. Explorer and file dialogs) to release currently locked (opened by another process) files

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

System

windows-10-lock-screensaver

Automatically lock the display after a certain period of time, WITHOUT turning the display off

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 3

System

delphi-concurrent-log

A thread-safe logging library for Delphi, with a portable core tested under Free Pascal in CI.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Other

delphi-fiber-runtime

Portable Pascal service runtime: fixed-rate scheduling, native timers, and measured 1 kHz execution. Fiber runtime under development.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

System

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

ExeSign

Delphi/Object Pascal Windows PE resources based executable identity tool

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • MIT

System

hefesto

Simple, efficient background job processing for Delphi — fluent API, retry, observability and pluggable queue brokers

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Other

intelligencer-door

Delphi 7 remote administration tool (RAT) with keylogger, screen capture, file explorer, and diagnostics. Educational security project exploring client-server architecture. Discontinued 2013.

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

Security

LnkISAPI-Filter-Loader

ISAPI Filter Loader (Load DLL ISAPI on fly). Autor: Daniel "sakura" Wischnewski

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2

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

SyncDirPas

The Directory Synchronization program synchronizes the file contents of directories on a personal computer running Microsoft Windows or Ubuntu Linux.

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 2
  • MIT

Files and Drives

triton

Pool de recursos genérico e de alto desempenho para Delphi: lease, backpressure, LIFO/FIFO, métricas e adapters plugáveis

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Other