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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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dext

Dext - Modern Full Stack Framework for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 330
  • Apache-2.0

Networking

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

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

FastMM5

FastMM is a fast replacement memory manager for Embarcadero Delphi applications that scales well across multiple threads and CPU cores, is not prone to memory fragmentation, and supports shared memory without the use of external .DLL files.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 345

System

StyledComponents

Components similar to Delphi VCL Buttons, Panels, Toolbar, DbNavigator, BindNavigator, ButtonGroup and CategoryButtons with Custom Graphic Styles, and an advanced, full-customizable TaskDialog, also with animations!

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 218
  • Apache-2.0

Other

Mad-Pascal

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

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 167

Language Tools

NtUtilsLibrary

Delphi library for system programming on Windows using Native API

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

System

GrijjyCloudLogger

GrijjyCloudLogger, remote logging for Windows, iOS, Android, macOS and Linux

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 116

Networking

BrainMM

Extremely fast memory manager for Delphi

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

System

rnl

RNL - Realtime Network Library - The opensource reliable UDP network library

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 90
  • Zlib

Networking

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

Delphi_Remote_Desktop

Easy To Use Drag And Drop Desktop Duplication Components (Work In Progress!)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 52
  • MIT

Networking

GHttpsIOCPSvr

Delphi HTTPS server IOCP and Schannel

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Networking

ProtectedMemory-Delphi

Protect and preventing access to specific memory regions, Protect sensitive data from exposed by other processes

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 41
  • MIT

Security

SnapTRAINER

A modular Virtual-PLC Trainer

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

System

PowerVM

Stealth Type-1 Hypervisor designed specifically to debug processes protected by modern Anti-Cheat systems like Tencent ACE and VMProtect

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 28
  • MIT

System Security

dolphin

A Delphi/Object Pascal ML framework: GPT-style Transformers + GPU training + tabular DataFrames

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 27

Science

mORMot-MCP-Server

Full MCP 2025-06-18 specification implementation for Delphi with mORMot2

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 22
  • MIT

Networking

florialib

Helper library for creating Floria Toolkit

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

Other

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

pasriscv

PasRISCV is a RV64GCV/RVA23 RISC-V emulator, which is implemented in Object Pascal

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 17
  • Zlib

System

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

Colligo

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 15
  • MIT

Other

Myrissa

Myrissa is a modern systems programming language by Jarrod Davis, combining Pascal readability with robust C ABI interoperability. Written entirely in Delphi, its self-contained compiler generates native x86_64 code for Windows and Linux, with built-in linking, managed strings, unit testing, exception handling, and low-level control.

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 15

Language Tools

MathParser

An expression parser and a virtual machine. A formula is compiled to a flat byte array and evaluated by a linear pass over it, with no allocation on the path of an ordinary formula. On x86-64 an optional accelerator compiles that bytecode to machine code and hands anything it declines back to the interpreter, so an answer is never fast but wrong. Results are cached by shape: once 2 + 3 has been compiled, 5 + 7 reuses the same script and only writes the numbers into a copy. 163 functions to call and 249 names in the table, your own functions and variables bound by address, symbolic differentiation. The Lazarus parser packages require FCL and define NOFORMS and NOGRAPHICS, so they install without LCL. WebAssembly uses a separate console configuration. Two units ask for more at their defaults, Thread through Application.HandleException and BlobManager through TGraphic; drop the defines and add the LCL to the package if you want them.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 14
  • MIT

Language Tools In the Online Package Manager

Tensorium

A platform agnostic fast tensor manipulation library using SIMD when possible, written in pascal and can be imported to other languages

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 14
  • MIT

Science

Z-SuperObject

Delphi cross-platform high-performance JSON library — O(1) field lookup, 18× faster serialization.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 12

Networking

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

DailyPascalModules

📦 Lightweight, zero-dependency Object Pascal micro-modules. Software CPU blitting for retro systems + unified OpenGL bindings for modern hardware. Pure FPC, plug-and-play.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 9
  • BSL-1.0

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

MyraLang

Myra is a minimal systems programming language inspired by Oberon and Pascal that compiles into C++23 using the Zig toolchain. Its core philosophy emphasizes a clean, unambiguous syntax while providing seamless interop, allowing developers to intermix raw C++ code directly within Myra source files. Pascal. Refined.

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 8

Language Tools

StdApp

StdApp Components is shared foundation library that provides the core infrastructure and common services needed by Delphi Win64 projects, so each project can focus on its own domain without reinventing low-level plumbing.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 8

Other

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

Virtuoso

Virtuoso is a single-unit, zero-dependency Delphi library that provides unified, thread-safe, generic access to memory-mapped buffers and files.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 8

Other

ConcurrentMM

Memory manager for FreePascal, specially designed for highly parallel applications

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 7
  • Apache-2.0

System

horse-compression-v2

Middleware oficial de compressão de alta performance para o ecossistema Horse, com suporte a Gzip, Deflate e Brotli.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 7
  • Apache-2.0

Networking

LUX.GPU.OpenCL

OpenCL Library for parallel computing on the GPU.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • Apache-2.0

Bindings

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

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

Free-Simula

A compiler for Standard Simula, and our Free Simula dialect. Free Simula is a modernized Simula dialect, serves as a hobbyist project, and educational environments.

  • Active
  • Application
  • GitHub
  • ★ 4
  • MIT

Language Tools

apophysis-7x-dll

DLL variant of the Apohysis 7x renderer

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 3
  • GPL-3.0

Graphics

PaxLang

Pax is a Pascal/Oberon-inspired systems language that compiles to modern C++23 using Zig’s Clang toolchain, with a pass-through design that lets you mix raw C++ and Pax code freely in the same source file.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3

Language Tools

ShardMM

A scalable memory manager for Delphi on Win64

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

System

TernaryOperator

A unit TernaryOperator implementa um operador ternário para Delphi, utilizando Custom Managed Records (Delphi 10.4+).

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

Other

UnleashedPascal-BigInts

Arbitrary-precision integers, decimals and rationals for Unleashed Pascal: signed BigInt, unsigned UBigInt, BigDecimal and BigRational in one dependency-free unit, typically within 1-4x of GMP.

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

Science

BeamETF

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 2

Other

dext-bkp

Dext - Delphi Modern Web Framework

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

Networking

MiniPIG

Strict LL(1) Recursive Descent Parser Generator for Turbo Pascal / FreePascal

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

Language Tools

NitroVM

A High-Performance Virtual Machine for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • BSD-3-Clause

Language Tools

TBigDecimal

Arbitrary-precision decimal arithmetic for Free Pascal (TBigDecimal record, rounding modes, Sqrt/Exp/Ln/Pow, combinatorics, Gamma)

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 2

Science

VecMath

A Delphi library for high-performance vector math

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

Science