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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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Prefix-Tree

Trie, also called digital tree and sometimes radix tree or prefix tree (as they can be searched by prefixes)

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 1

Learning and Examples

DzHTMLText

Delphi and Lazarus HTML Label component

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 229
  • MIT

Labels

4.0 from 1 member

TulipBetterComments

A Delphi IDE plugin that enhances code readability by colorizing comments dynamically based on specific prefixes.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 12
  • MIT

Lazarus IDE plugins

auto

Generates all the possible words from a prefix given by the user!

  • Quiet
  • Application
  • GitHub
  • ★ 10

Applications

SearchStrings

Trie search implementation

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

Other

XMLDocHelper

This unit hooking delphi methods and allows easy use units created with Delphi XML Binding Wizard with multiple namespace and proper prefixes.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 3

Files and Drives

Delphi

Função em Delphi que troca Prefixos por novas palavras

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 2
  • MIT

Learning and Examples

OD-Pack

My Power Station, Delphi OD Components without VCL prefix, for backward compatibility

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 2

Other

Rename-ReDate-Delete-Files

Besides file deletion and rename, can Append, Prefix, Remove and Replace strings from the filename, change file Date/Time

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1

Files and Drives

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

goverlay

Goverlay is an easy graphical interface to configure linux gaming applications

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 1,582
  • GPL-3.0

System

opensoldat

OpenSoldat is a unique 2D (side-view) multiplayer action game

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 1,466
  • MIT

Games and Game Engines

Alcinoe

Alcinoe empowers developers to build fast, modern apps without the usual complexity or performance bottlenecks. It keeps the focus on innovation—not tool constraints—delivering top performance, deep customization, and great cross-platform UX while staying independent of GAFA ecosystems.

  • Active
  • Package
  • Delphi
  • GitHub
  • ★ 1,134
  • Apache-2.0

Other

BGRAControls

Set of LCL visual components. Analog controls, button, checkbox, toolbar, panel, ribbon, progressbar etc.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 226
  • Modified LGPL

Graphics In the Online Package Manager

winxcorners

Hot corners for Windows 10 & 11

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 953
  • MIT

System

pasta80

Turbo Pascal 3.0-compatible compiler that generates machine code for classic and modern Z80 machines (currently CP/M, Sinclair ZX Spectrum 48K/128K/Next, and Agon Light/Console8).

  • Active
  • Application
  • GitHub
  • ★ 207

Language Tools

dataset-serialize

JSON to DataSet and DataSet to JSON converter for Delphi and Lazarus (FPC)

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 746
  • MIT

Database

JPPack

A collection of VCL/LCL components for Delphi/Lazarus - buttons, panels, LinkLabel, ProgressBar, ColorComboBox, ColorListBox, Timer and other

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 159

Other

SVGIconImageList

Four engines to render SVG (Delphi Image32, SVGMagic, Skia4Delphi, Direct2D wrapper) and four components to simplify use of SVG images (resize, fixedcolor, grayscale...) for VCL and FMX platforms.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 399
  • Apache-2.0

Graphics

delphi-neon

JSON Serialization library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 364
  • MIT

Other

cassotis-ime

Cassotis IME - a native Delphi/TSF Chinese Pinyin IME for Windows 10/11. 言泉输入法 —— 基于 Delphi/TSF 的 Windows 10/11 原生开源中文拼音输入法，支持全拼、简拼、六种双拼，并通过语料训练的本地语言模型与神经重排提升输入质量。

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 302
  • GPL-3.0

System

Delphi-JsonToDelphiClass

Generates Delphi Classes based on JSON string (Json To Delphi Class Generator / JSON Data Binding Tool)

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 244
  • MIT

Language Tools

Chet

C Header Translator for Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 227
  • BSD-2-Clause

Language Tools

MakerAi

The AI Operating System for Delphi. 100% native framework with RAG 2.0, autonomous agents, MCP protocol, and universal LLM connector. Supports OpenAI, Claude, Gemini, Ollama, and more. Delphi 10.4+ (limited), full support from Delphi 12 Athens.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 216
  • MIT

Other

FastMath

Fast Math Library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 194

Science

Delphi-LightSaber

Lots and lots of "goodie" functions and 70 visual controls. More than 15 years of development have been put in this library. The library also wants to be a lightweight replacement for the mammoth Delphi Jedi library.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 157

Other

fpCEF3

Chromium Embedded Framework for Free Pascal

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 151
  • MPL-2.0

Bindings

NtUtilsLibrary

Delphi library for system programming on Windows using Native API

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

System

pixie

A lightweight HTML/CSS rendering engine for Free Pascal (Lazarus) and Delphi (VCL & FMX).

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 25
  • MIT

Graphics

flre

FLRE - Fast Light Regular Expressions - A fast light regular expression library

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 104
  • LGPL-2.1

Language Tools

DelphiDeepseek

The Deepseek API wrapper for Delphi leverages Deepseek’s advanced models to deliver powerful capabilities for seamless and dynamic conversational interactions, including a model optimized for reasoning, and now also supports running local models through an LM Studio server.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 100
  • MIT

Networking

DelphiCodeCoverage

. Delphi Simple Code Coverage tool for Delphi that creates code coverage reports based on detailed MAP files.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 97
  • MPL-2.0

Language Tools

openapi-delphi-generator

Generate Delphi client SDKs for any REST API defined with the OpenAPI specification.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 92

Networking

JsonToDelphi

generate delphi classes from json (Json To Delphi Class Generator / JSON Data Binding Tool FMX, VCL and uniGUI)

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 76

Language Tools

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

adbmanager

ADB manager for Android devices

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 65
  • GPL-3.0

System

DX.Comply

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

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

Security

james

James is a collection of object-oriented Pascal primitives for Lazarus and Delphi

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 60
  • MIT

Other

Delphi-WebMocks

Library for stubbing and setting expectations on HTTP requests in Delphi with DUnitX

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 59
  • Apache-2.0

Networking

DataPort

Thread-safe port for data exchange. Supports network (TCP/UDP/HTTP), serial port, etc.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 58
  • The MIT License (MIT)

Networking In the Online Package Manager

MinimalistMediaPlayerX

A powerful, feature-rich MPV-based minimal-interface media player for 64-bit Windows. Lots of keyboard-controlled functionality but with minimal screen clutter. Automatically adjusts the window to match the video dimensions, without a window caption/title bar, to give an immersive viewing experience whether in window mode or fullscreen mode.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 57
  • GPL-3.0

Multimedia

delphi-lookup

Fast Delphi/Pascal symbol search for AI coding agents - Now includes Delphi LSP

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 56

Language Tools

CompInstall

Delphi utility app to auto-install component packages into IDE

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 54
  • MIT

Language Tools

KBBUILDER

Source code for Knowledge Base builder

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 54

Language Tools

BeaEngineDelphi

BeaEngine Disassembler Library Binding for Delphi

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 53
  • MPL-2.0

Bindings

BaseNcodingPascal

Library for encoding of binary data into strings using base32, base85, base128 and other algorithms for FPC and Delphi.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 52
  • MIT

Other

delphi-james

James - The Delphi Project Manager

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 52
  • GPL-3.0

Applications

xavier

Xavier is a small object-oriented XML library for Lazarus and Delphi

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 48
  • MIT

Language Tools

FormatConverter

Pacote de conversão entre formatos (JSON, XML, CSV, etc) para Delphi.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 46
  • MIT

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

UninsIS

Windows DLL to facilitate detection and uninstallation of applications installed by Inno Setup 6 and later

  • Active
  • Library
  • GitHub
  • ★ 44
  • LGPL-3.0

System