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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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prometheus-client

Lock-free Prometheus client for Free Pascal. Striped counters, summary quantiles, and OpenMetrics support for FPC services.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 1
  • BSD-3-Clause

Science Bindings

rkapl123.github.io

my personal overview page and redirect for kapl.org

  • Active
  • Other
  • GitHub
  • ★ 1
  • MIT

Other

CalcObes

This program has its origin in the Obesity Guidelines of the Sanitary Region of Girona (Catalonia-Spain). It is intended for physicians and nurses of primary healthcare, endocrinologists and dietitians. Look for "Summary | Web Site"

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

Science

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

skia4delphi

Skia4Delphi is a cross-platform 2D graphics API for Delphi platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 793
  • MIT

Graphics

delphi-neon

JSON Serialization library for Delphi

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

Other

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

xdpw

XD Pascal: A small embeddable self-hosting Pascal compiler for Windows. Supports Go-style methods and interfaces

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 296
  • BSD-2-Clause

Language Tools

wincachegrind

[NO LONGER MAINTAINED] WinCacheGrind is a viewer for cachegrind.out files generated by xdebug 2. WinCacheGrind is functionally similar to KCacheGrind, only it is much simpler and runs on Windows.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 192
  • GPL-3.0

Language Tools

QuickCore

Delphi Core Framework to fast build desktop/mobile/web apps.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 163
  • Apache-2.0

Networking

YTuner

YTuner is a simple project designed to replace vTuner internet radio service and dedicated to all users of AVRs made by Yamaha, Denon, Onkyo, Marantz, Pioneer, HK and others with built-in vTuner support.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 156
  • MIT

Networking Multimedia

NtUtilsLibrary

Delphi library for system programming on Windows using Native API

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

System

aws-sdk-delphi

AWS (Amazon Web Services) SDK for Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 139

Networking

quantoflx

A desktop customization tool based on Rainmeter

  • Archived
  • Application
  • GitHub
  • ★ 135
  • GPL-3.0

Applications

codesnip

A code bank designed with Pascal in mind

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 132

Applications

SwagDoc

Create a public documentation REST API using Swagger 2.0 or Open API 3.2.1 for Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 108
  • Apache-2.0

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

DelphiGenAI

The GenAI API wrapper for Delphi seamlessly integrates OpenAI’s latest models (gpt-5 serie), delivering robust support for agent chats/responses, text generation, vision, audio analysis, JSON configuration, web search, and asynchronous operations. Image generation with gpt-image-2. Skills and agents

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 88
  • MIT

Networking

notetask

A simple application for creating and organizing task lists, offering essential features for efficient task management, similar to Notepad in its simplicity and functionality.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 79
  • GPL-3.0

Applications

McJSON

A Delphi / Lazarus / C++Builder simple and small class for fast JSON parsing.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 72
  • MIT

Other

newac

New Audio Components (NewAC) are designed to help your Delphi programs perform different sound processing tasks.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 71

Multimedia

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

DelphiAnthropic

The Anthropic API wrapper for Delphi leverages cutting-edge models, including Anthropic's advanced Claude series, to deliver powerful features for chat interactions, vision processing, caching, efficient batch processing, connector MCP, skills and managed agents.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 63
  • MIT

Networking

DX.Comply

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

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

Security

ekeyfinder

Archive of my sourceforge project Enchanted Keyfinder. Software key retrieval on Windows.

  • Quiet
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 60
  • GPL-3.0

System

Keras4Delphi

Keras4Delphi is a high-level neural networks API, written in Pascal with Python Binding

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 57
  • MIT

Science

DelphiGemini

Delphi wrapper for the Google Gemini API: stateless generation and agent workflows with multimodal, streaming, persistent interactions, structured outputs, vector search, batch, image/video generation, and grounding (Search/Maps).

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

Networking

xdp

XD Pascal: A small Pascal compiler for MS-DOS

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 52

Language Tools

zx-skiacomponents

An open-source set of Delphi components for the FireMonkey framework that utilize the Skia4Delphi library.

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

Graphics

delphi-visual-studio-code-debugger

A debugger for delphi in visual studio code, and also a MCP server to give claude/copilot/etc authonomous delphi debugging capabilities

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Language Tools

DotEnv4Delphi

A library to use .env files in Delphi and Lazarus (FreePascal). Also to be able to use Environment variables in a simpler way

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

System

openhlds

An open-source dedicated server for Half-Life 1 and mods, including Counter-Strike.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 42

Games and Game Engines

SnapTRAINER

A modular Virtual-PLC Trainer

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

System

Microsoft365-4D

Delphi library for Microsoft 365 integration. OAuth2 with PKCE, Mail, Calendar, Contacts, and SharePoint via Microsoft Graph API. No external dependencies.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 40
  • MIT

Networking

OverbyteICS

OverbyteICS. Outdated copy of SVN repository

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 38

Networking

delphi-ppl

Extend Delphi Parallel Programming Library to ease async coding

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • GPL-3.0

System

Badger

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

Networking

swag

Preserving the final release of the SWAG collection of Pascal code and program examples from 1997

  • Active
  • Other
  • GitHub
  • ★ 36

Learning and Examples

duckdb-fp

A clean and intuitive wrapper for DuckDB in FreePascal, providing easy database operations and DataFrame-like result handling.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 35
  • MIT

Bindings Database

DX.Blame

Inline Git & Mercurial Blame for the Delphi IDE — like GitLens, but for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 34
  • MIT

Lazarus IDE plugins

sysinfo

System Information Unit

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 32

System

DDNRuntime-examples

DDNRuntime(Delphi .NET Framework/.NET Core Runtime) example. DDNRuntime is a library for Delphi to call .net dll. Support the assembly written by c#, vb.net. Support importing .net dll to delphi, can create .net wrapper automatically.

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 28

Learning and Examples

PKCS7Extractor

PKCS#7 Extractor library for Delphi

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 27
  • LGPL-3.0

Cryptography

cqlbr

CQLBr Framework for Delphi/Lazarus (Isaque Pinheiro)

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 26

Database

InfraFramework4Delphi

API that provides a base infrastructure for the Delphi application development using a layered architecture.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 26
  • Apache-2.0

Other

Spritely

Spritely - A 3D Model to 2D Sprite conversion application

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 26
  • GPL-3.0

Graphics

IAMClient4D

IAMClient4D is a Delphi client library for integrating applications with Keycloak, providing full OAuth2/OpenID Connect support (including PKCE), token and user management, and a lightweight asynchronous task framework (Async.Core) for thread-safe operations across VCL and FMX.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 24
  • Apache-2.0

Security Networking