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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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HashLib4Pascal

Hashing for Modern Object Pascal (mirror)

  • Active
  • Package
  • Lazarus and Delphi
  • Codeberg

Cryptography

5.0 from 1 member

MathParser

An expression parser and a virtual machine. A formula is compiled to a flat byte array and evaluated by a linear pass over it, with no allocation on the path of an ordinary formula. On x86-64 an optional accelerator compiles that bytecode to machine code and hands anything it declines back to the interpreter, so an answer is never fast but wrong. Results are cached by shape: once 2 + 3 has been compiled, 5 + 7 reuses the same script and only writes the numbers into a copy. 163 functions to call and 249 names in the table, your own functions and variables bound by address, symbolic differentiation. The Lazarus parser packages require FCL and define NOFORMS and NOGRAPHICS, so they install without LCL. WebAssembly uses a separate console configuration. Two units ask for more at their defaults, Thread through Application.HandleException and BlobManager through TGraphic; drop the defines and add the LCL to the package if you want them.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 14
  • MIT

Language Tools In the Online Package Manager

QRCodeGenLib4Pascal

Generates QR Codes from text strings and byte arrays.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 70

Graphics

HashLib4Pascal

HashLib4Pascal is a Delphi/FreePascal compatible library that provides an easy to use interface for computing hashes and checksums of strings (with a specified encoding), files, streams, byte arrays and untyped data to mention but a few. It also supports Incremental Hashing.

  • Library
  • Lazarus and Delphi

Cryptography

QRCodeGenLib4Pascal

QRCodeGenLib4Pascal is a Delphi/FPC compatible library that provides an easy to use interface for generating QR Codes, from text strings and byte arrays.

  • Library
  • Lazarus and Delphi

Graphics

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

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

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

FastMM4

A memory manager for Delphi and C++ Builder with powerful debugging facilities

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 499

System

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

tsmbios

Library to access the SMBIOS using Object Pascal (Delphi, FPC).

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 219
  • MPL-2.0

System

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

RealThinClient-SDK

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

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 190

Networking

hxd-plugin-framework

Plugin framework for HxD's data inspector

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 187
  • MPL-2.0

Other

Delphi-MCP-Server

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

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

Networking

InstantObjects

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

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

Database

scalemm

Fast scaling memory manager for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 107

System

delphi-webp

WebP Library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 79

Graphics

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

FastCode

Fast replacements for Embarcadero's standard libs

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 58

Other

IntXLib4Pascal

Arbitrary Big Integer Library for Pascal

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 56
  • MIT

Other

msgpack-delphi

MessagePack implementation for Pascal / msgpack.org[Pascal]

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 53
  • BSD-2-Clause

Other

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

ipub-refit

Simple way to consume REST services

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Networking

delphi-libraries

Pure-Delphi audio codec stack — WAV, FLAC, Vorbis, Opus, MP3. No DLLs, no C bindings. CC0 Public Domain.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 41

Multimedia

ProtectedMemory-Delphi

Protect and preventing access to specific memory regions, Protect sensitive data from exposed by other processes

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 41
  • MIT

Security

benchmark

Delphi port of Google Benchmark

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • Apache-2.0

System

class-helpers

Directory of Delphi VCL/RTL class helpers

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 35
  • MIT

Other

UniConv

Universal text conversion library (Delphi6-XE10)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 35
  • MIT

Other

CachedTexts

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

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

Language Tools

xxtea-delphi

XXTEA encryption algorithm library for Delphi/FreePascal.

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

Cryptography

jcore

Some FPC classes and frameworks I have implemented so far

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 29

Database

toml-fp

Simplify parsing and writing TOML config files in Free Pascal

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 29
  • MIT

Language Tools

Delphi-Tasks

Small and simple: Thread Pools with Tasks

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 26
  • Unlicense

System

KittoX

A Delphi framework for creating data-driven WEB SPA applications with HTMX

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

Networking Database

SmazDelphi

Small strings compression library for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 26
  • MIT

Files and Drives

smPDF

Simple, lightweight PDF writer for Delphi VCL

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 26
  • MIT

Reporting

DX.TOML

Delphi TOML Library

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 24
  • MIT

Other

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

BitmapPixels

BitmapPixels.pas - Lazarus and Delphi module for direct access to pixels at TBitmap

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 23
  • MIT

Graphics

zydis-pascal

Zydis Pascal Bindings

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 23
  • MIT

Bindings

besasoap

Delphi SOAP Client Component

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 20
  • Apache-2.0

Networking

delphi-iot

14 IoT and industrial communication libraries for Delphi 12: MQTT, AMQP 1.0, CoAP, Modbus, STOMP, WebSocket, mDNS/DNS-SD, NMEA, InfluxDB, Prometheus, CBOR, MessagePack, JSON, Serial — 694 tests, no external dependencies beyond Indy

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 20

Networking

GocciaScript

A sandbox-first JavaScript engine for AI agents: host-set capabilities and limits, deterministic runs, TypeScript annotations, test262 on every pull request.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 20
  • MIT

Language Tools

tina4delphi

Tina4Delphi - A comprehesive set of tools to make REST and application integration better

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 20
  • MIT

Networking

PureParseFloat

Just Good ParseFloat Algorithm named PureParseFloat

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 19
  • MIT

Other

sempare-delphi-streams

Sempare Streams is a Delphi (object-pascal) library providing for stream type operations over various enumerable types similar to Java streams or Linq.

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 19
  • GPL-3.0

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

DelphiAndroidBroadcastReceiver

A Delphi component for send and receive Android Intent Broadcast messages, for you can easy integrate your applications with devices native SDK // Um componente Delphi para enviar e receber mensagens Android Intent Broadcast, para que você possa integrar facilmente seus aplicativos com SDK nativos de dispositivos.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • BSD-3-Clause

System

Hidapi

Bindings for libhidapi. Supports Windows, Linux and macOS.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 16
  • GPL 2

Bindings In the Online Package Manager

Iterators

Iterator libary for ObjectPascal

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 16
  • BSD-2-Clause

Other

VSoft.Process

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

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

System

DNetLog

TCP/UDP logs for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 14

Networking