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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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delphilint

Delphi IDE package providing on-the-fly code analysis and linting, powered by SonarDelphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 150
  • LGPL-3.0

Lazarus IDE plugins

delphilint

Delphi IDE package providing on-the-fly code analysis and linting, powered by SonarDelphi

  • Active
  • Library
  • Delphi
  • Codeberg

Lazarus IDE plugins

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

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

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

DelphiStabilityAI

The Stability API wrapper for Delphi utilizes advanced models developed by Stability.ai to provide capabilities for seamless image, video, and 3D generation, as well as sophisticated editing and upscaling tools, tailored for creative and professional use.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 18
  • MIT

Networking

WDDelphiTools

Collection of Delphi units and tools from Waldemar Derr

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 18
  • MIT

Other

Delphi-LitCrypt

Delphi plugin that provides compile-time string encryption

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 11
  • MIT

Cryptography

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

DelphiKeyboard

IME에 의존하지 않는 두벌식 한글 조합 오토마타 내장 Delphi VCL 가상 키보드

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

System

horse-provider-crosssocket

High-performance, security-hardened CrossSocket provider for the Horse web framework. Replaces the default Indy provider with IOCP/epoll async I/O, an object pool, enforced request limits, and OpenSSL 3.x native TLS.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9

Networking

jpmMath

Math routines by Jean-Pierre Moreau

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 9

Science

IAP

A Library bundled for the ITDevCon 2014 presentation "Immersive Audio Programming", which contains the necessary code to build a platform independent audio environment with Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 8
  • MIT

Multimedia

TestGrip

Delphi Test generation framework

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 8
  • MIT

Language Tools

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

balance

Balance is a 2D physics engine implemented in PascalABC.NET

  • Active
  • Library
  • GitHub
  • ★ 6
  • MIT

Science

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

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

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

horse-provider-ics

OverbyteICS transport provider for the Horse framework — a drop-in alternative to Indy with modern OpenSSL 3.x/4.x TLS (TLS 1.3, mTLS). Delphi/Windows; enabled by {$DEFINE HORSE_PROVIDER_ICS}.

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

Networking

adc-model

adc-model provides a configurable ADC behavioral model, SPICE testbenches, and analysis scripts for static INL/DNL and dynamic FFT characterization.

  • Active
  • Library
  • GitHub
  • ★ 1

Other

concrete_design_tools

Fast, lightweight CLI tools for reinforced concrete design

  • Active
  • Library
  • GitHub
  • ★ 1
  • MIT

Other

rawpaco

FPC/Lazarus Pascal lint tool based on tree-sitter-pascal

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

Other