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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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DX.Stream

Delphi TStream utilities: memory-to-file fallback stream and TBytes class helper

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

Files and Drives

lib.SharedMemoryStream

Simple class that creates and provides access to a shared (system-wide) memory with standard stream interface (read, write, seek, ...).

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 15
  • MPL-2.0

System

Memory-DLL-Loader

Simple, Easy, Reliable Implement To Load DLLs From Memory Stream In Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6

System

lib.StaticMemoryStream

Simple library designed to ease accessing of general memory location using usual stream interface.

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 5
  • MPL-2.0

System

Bubbles

Bubbles the simple, easy to use HTTP web server that is browser controlled, and capable of serving static files over the internet, either streamed from disk, or direct from RAM without lag. A GUI administration panel is accessed through your web browser (e.g. "http://localhost:1080/admin/" + default password of "admin"), which controls all her settings and vital functions, all in real time. Apart from serving files, she is capable of tracking site visits (site counters), receiving emails, accepting contact form submissions with support for Spam Guard, and recording site activity as date stamped traffic logs. She also includes a built-in log analyser for making sense of her traffic logs. These and other features make her more than capable of running multiple websites with little to no headache. Her design is light and stable, and an extensive block-based memory management system ensures all her key operations use memory in a sustained and reliable manner.

  • Application
  • SourceForge
  • MIT License

Networking

zflate

Self-contained DEFLATE, ZLIB and GZIP compression for Unleashed Pascal. No zlib, no external dependencies: PHP-like function names, levels 0-9, constant-memory streaming, and compression that scales across cores.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 12
  • MIT

Files and Drives

lib.BinaryStreaming

Library designed to ease streaming of binary data into memory or TStream descendants.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 8
  • MPL-2.0

Files and Drives

lib.SimpleCompress

Very simple library providing functions for (de)compression of streams (descendants of TStream class), files and memory buffers. Actual (de)compression is done by ZLib library.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 5
  • MPL-2.0

Files and Drives

Lib.BinaryStreaming

Library designed to ease streaming of binary data into memory or TStream descendants.

  • Quiet
  • Library
  • GitHub
  • ★ 1
  • MPL-2.0

Files and Drives

Lib.SimpleCompress

Very simple library providing functions for (de)compression of streams (descendants of TStream class), files and memory buffers. Actual (de)compression is done by ZLib library.

  • Quiet
  • Library
  • GitHub
  • ★ 1
  • MPL-2.0

Files and Drives

Lib.StaticMemoryStream

Simple library designed to ease accessing of general memory location using usual stream interface.

  • Quiet
  • Library
  • GitHub
  • ★ 1
  • MPL-2.0

Other

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

mortar

evasion technique to defeat and divert detection and prevention of security products (AV/EDR/XDR)

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1,513
  • MIT

Security

horse

Fast, opinionated, minimalist web framework for Delphi

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 1,383
  • MIT

Networking

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

ProcessMemoryMap

Deep memory analysis for Windows processes — the tool that saves you hours of debugging

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 178
  • MPL-2.0

System

QuickLib

Quick development library (AutoMapper, LinQ, IOC Dependency Injection, MemoryCache, Scheduled tasks, Json and Yml Config and Options pattern, Serializers, etc) with crossplatform support for Delphi/Firemonkey (Windows,Linux,OSX/IOS/Android) and freepascal (Windows/Linux).

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 714
  • Apache-2.0

Other

LazWebsockets

Websocket Server and Client Library written in Lazarus

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 123
  • BSD-3-Clause

Networking

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

dext

Dext - Modern Full Stack Framework for Delphi

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

Networking

DLest

Microsoft Windows DLL Export Browser (Enumerate Exports, COM Methods and Properties) with Advanced Search Features.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 268
  • Apache-2.0

System

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

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

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

PdfiumLib

PDF VCL Control using PDFium

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 208
  • MPL-2.0

Bindings

mcx

Monte Carlo eXtreme (MCX) - Physically accurate and validated GPU ray-tracer

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 197

Science

GpDelphiUnits

A collection of my open sourced Delphi units

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 190
  • BSD-3-Clause

Other

RealThinClient-SDK

RealThinClient SDK - Delphi components for building HTTP(S) applications

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 190

Networking

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

Delphi-MCP-Server

Native Delphi Server implementation of the Model Context Protocol (MCP)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 143
  • MIT

Networking

AIO

Coroutine-based multithreading library for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 121
  • Apache-2.0

System

Delphi-Promises

Delphi implementation of promises for asynchronous programming.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 121
  • MIT

Other

InstantObjects

Pupular OOP-OPF Library for Delphi (from DXE6 to latest version)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 107
  • MPL-2.0

Database

TMongoWire

Delphi MongoDB driver

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 105
  • MIT

Database

MfPack

Delphi translations for Microsoft Media Foundation and related API's

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 102
  • MPL-2.0

Bindings Multimedia

QuickImageFX

Simplifying image manipulation using GDI, Graphics32, OpenCV or Vampyre Imaging libraries

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 96
  • Apache-2.0

Graphics

Neslib.Json

Fast and memory-efficient JSON for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 93

Language Tools

Grace

Sampler VST Plugin for Windows

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 87

Multimedia

minilib

MiniLib Pascal/Delphi library

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 84

Other

DelphiMongoDB

A Delphi driver for MongoDB

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 82

Database

curl4delphi

A little libcURL binding for Delphi XE2+. Supports “easy” interface only. See wiki for more documentation.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 80

Bindings Networking

aws

Object Pascal implementation for Amazon S3

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 79
  • MIT

Networking

delphi-webp

WebP Library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 79

Graphics

VindexLLM

VindexLLM is a pure Delphi, GPU-powered LLM inference engine that uses Vulkan compute shaders to run GGUF models entirely on the GPU. It performs full transformer inference without relying on Python, CUDA, or other external runtimes, requiring only vulkan-1.dll, which is typically included with modern GPU drivers.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 73

Science

newac

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

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 71

Multimedia

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.Pdfium4D

Delphi Cross-Platform Wrapper for Google's PDFium - Object-oriented PDF document handling for Windows, macOS, Android, iOS

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 62
  • MIT

Bindings

FWHexView

Hex Viewer Project

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 60
  • MIT

System

DzTalkApp

Delphi non-visual component to communicate between applications

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 59
  • MIT

Networking

TChopper

conduct lateral movement attack by leveraging unfiltered services display name to smuggle binaries as chunks into the target machine

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 55

Security

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

GR32PNG

The GR32PNG library has been incorporated into the Graphics32 library and is no longer independently maintained.

  • Archived
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 47

Graphics