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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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TreeStructInfo

API to handle the TreeStructInfo configuration files.

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 10

Other

behavior3delphi

Behavior3 client library for Delphi (Behavior Trees for Delphi)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 20
  • MIT

Other

ClassTree

Small application for generating class trees

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 11
  • Apache-2.0

Language Tools

wyrd-forest

Game about walking in a weird forest, planting healing trees, and shooting evil targets. Game sponsored by Patreon supporters, showing off various Castle Game Engine features.

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

Games and Game Engines

Hierarchical-Neural-Tree

Hierarchical classification and vector quantization with neural trees in pascal

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • GPL-3.0

Science

Hashtag-Search

Hashtag search in tweets using binary trees, made for the Data Structure course (1st year, Software Engineering degree)

  • Active
  • Other
  • GitHub
  • ★ 1
  • CC0-1.0

Learning and Examples

TreeHouse

A structure built in trees of abstract syntax - for habitation

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1
  • GPL-3.0

Language Tools

Clad 1.0

Clad organizes a tree of biological species, allowing the user to add scientific and popular names, origin, distribution, apomorphies and other information such as pictures or if the clade is extinct. Browsing through the trees is easy and educative.

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

Science

Extended Packages

Allows to create reports from data, Virtual Trees or DBGrids. Has invisible components for pictures, translation, extracting, copying.

  • Package
  • Lazarus
  • SourceForge
  • GPL

Reporting In the Online Package Manager

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

LGenerics

Generic algorithms and data structures for Lazarus/Free Pascal

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 139
  • Apache-2.0

Other

neural-api

CAI NEURAL API - Pascal based deep learning neural network API optimized for AVX, AVX2 and AVX512 instruction sets plus OpenCL capable devices including AMD, Intel and NVIDIA.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 465
  • LGPL-2.1

Science

besen

Complete ECMAScript Fifth Edition Implemention in Object Pascal

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 233
  • LGPL-2.1

Language Tools

pasvulkan

Vulkan header generator, OOP-style API wrapper, framework and prospective Vulkan-based game engine for Object Pascal

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 230
  • Zlib

Bindings Graphics

Delphi-GCharts

Delphi-GCharts is a Delphi library of components to generate charts in uniGUI Framework using the Google Charts API

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 146
  • Apache-2.0

Charts and Graphs

NtUtilsLibrary

Delphi library for system programming on Windows using Native API

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

System

LDAP-Admin

LDAP Admin for Linux

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 135

Networking

kraft

Kraft Physics Engine is an open source Object Pascal physics engine library that can be used in 3D games.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 132

Games and Game Engines

wchttpserver

HTTP/2+HTTP/1.1+WebSocket server written with Lazarus (Free Pascal)

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 73
  • LGPL-2.1

Networking

VSoft.AnsiConsole

A Delphi library for creating engaging console applications

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 71

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

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

LKSL

LaKraven Studios Standard Library

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 52

Other

ADAPT

Advanced Developer Async Programming Toolkit

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 46

Other

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

mrai

Artificial Intelligence Library

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 39
  • Apache-2.0

Science

cli-fp

A type-safe Free Pascal framework for building powerful CLI applications with rich commands and help systems.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 38
  • MIT

System

keyvast

KeyVast - A key value store

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 35
  • MIT

Database

opcb-object-pascal-component-builder

OPCB – Object Pascal Component Builder A library for fluent creation and configuration of components in Delphi and Lazarus. Enables expressive, hierarchical, and reusable runtime UI construction. Developed by Fabiano Arndt. Copyright © 2025 Fabiano Arndt

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 33
  • Apache-2.0

GUI containers

qdac

JSON/XML/AMF/MessagePack/MultiThread and more functions library

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 33
  • MIT

Database

CachedTexts

The fastest parsing and generation of text data (Delphi6-XE10)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 31
  • MIT

Language Tools

SedaiBasic

SedaiBasic Interpreter with VM

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

Language Tools

libpasc-algorithms

libPasC-Algorithms is delphi and object pascal library of common data structures and algorithms. The library is a set of containers adapted for the Pascal language and the template system available on it.

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 27
  • MIT

Other

EZDSL

Easy Data Structures for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 25

Other

NppUISpy

With this plugin for Notepad++ you can figure out the menu command IDs of menu items and toolbar buttons

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 25
  • GPL-3.0

Edit and Memos

Oz-SGL

Standard Generic Library (SGL) for Pascal using records with heap memory allocator and typed memory regions.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 25
  • Apache-2.0

Other

AEFramework

Delphi VCL component fixes and other useful units for any application. Includes a fully functional ANSI-Unicode DDE manager, automatic file updater, etc.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 23

Other

ThinkSQL

A Relational Database Management System

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 21

Database

florialib

Helper library for creating Floria Toolkit

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

Other

Delphi-RAG-Lint

Delphi-native, MIT-licensed RAG + linter for Delphi/Pascal source code. Symbol-exact + fuzzy + tree-sitter lint. Pure Delphi at runtime.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 19
  • MIT

Language Tools

hamt

Mutable and immutable persistent maps and sets as hash array mapped trie (HAMT) for FreePascal

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 19

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

UIClicker

UI automation

  • Active
  • Application
  • GitHub
  • ★ 18
  • MIT

System

thundax-pzaggy

⛕ GUI front-end extension of VLO Framework to visually work with Graphs

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 17

Charts and Graphs

VSoft.Process

A Delphi library for running processes and capturing out, interacting with it.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • Apache-2.0

System