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30,062 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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lib.BitVector

Set of classes implementing bit vector (an array of individually accessible bits).

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 2
  • MPL-2.0

Other

CryptoLib

Set of units for cryptography, ciphers, security, random numbers. Also contains BigInteger class.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 266
  • MIT License

Cryptography In the Online Package Manager

5.0 from 1 member

FonLibrary

FON Vector/Bitmap Library for Free Pascal and Turbo Pascal

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 13
  • MIT

Graphics

pl_Graphics32

Some of Graphics32 features for 32-bit images. Fast pixel access, ~100x faster than with TBitmap. Bitmap alpha blending. Antialiasing functions with sub-pixel accuracy.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 465
  • GNU Library or Lesser General Public License (LGPL)

Graphics In the Online Package Manager

SynPDF

Synopse PDF engine is a fully featured Open Source PDF document creation library for Delphi, embedded in one unit

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 322

Reporting

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

Image32

A comprehensive 2D graphics library written in Delphi Pascal

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 195
  • BSL-1.0

Graphics

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

LGenerics

Generic algorithms and data structures for Lazarus/Free Pascal

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

Other

Tiny.Sim

A cross platform real time 2D/3D graphics and 2D physics simulation library for Free Pascal

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 132
  • Zlib

Graphics Games and Game Engines

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

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

FastMath

Fast Math Library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 194

Science

rnl

RNL - Realtime Network Library - The opensource reliable UDP network library

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 90
  • Zlib

Networking

dglOpenGL

Delphi / Pascal OpenGL header translation (including WGL and GLX)

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 88
  • MPL-2.0

Bindings 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

CoreCipher

Standardized cryptography library for Delphi and FPC. Block ciphers, stream ciphers, and hash functions with unified API. Cross-platform, parallel-ready, no dependencies

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 68

Cryptography

DelphiBlend2D

Blend2D for Delphi: language bindings and framework for Blend2D

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 50
  • Zlib

Bindings Graphics

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

FiremonkeySensorFusion

Augmented Reality w/ Delphi Firemonkey. Sensor fusion object ( accelerometer+magnetometer+GPS). returns phone attitude (Azimuth/Elevation/Roll)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 34

System Science

TLSLib

TlsLib4Pascal is a fully managed, from-scratch TLS 1.2 + TLS 1.3 stack for modern Object Pascal (Delphi and FreePascal), released under the permissive MIT License.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 32
  • MIT License

Cryptography Networking In the Online Package Manager

smPDF

Simple, lightweight PDF writer for Delphi VCL

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

Reporting

BZScene

BZScene Multimedia 2D, 3D, Audio library for Lazarus and FPC / BZScene Bibliothèque multimédia 2D, 3D, Audio pour Lazarus et FPC

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 24

Multimedia Graphics

florialib

Helper library for creating Floria Toolkit

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

Other

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

fevh264

baseline h.264 encoder

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 20
  • GPL-3.0

Multimedia

Blen2d4Delphi

Blen2d4Delphi is alive again, which was started by #neslib (Erik van Bilsen: https://github.com/neslib/DelphiBlend2D)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 19

Bindings Graphics

LazBGI

Emulation of Turbo Pascal's BGI graphics commands for Lazarus

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

Graphics

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

NativeAsm

Native x86-64 code generation, JIT execution, SIMD, disassembly, and runtime instrumentation for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 16
  • MIT

Language Tools

SedaiAudio

Sedai Audio Foundation - Professional audio synthesis library in Free Pascal. 5 Synthesis Engines: Classic/Subtractive, FM (DX7-style), Wavetable, Additive, SID Evo.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 16
  • GPL-3.0

Multimedia

GISlib

A Delphi GIS library

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 15
  • MIT

Graphics

GLCanvas

OpenGL drawing library for Free Pascal

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 15

Graphics

Random

Pseudorandom number generator for MultiThread

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 14

Science

BlackShark

Black Shark Graphics Engine

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 13

Graphics

ft

A widget toolkit?

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 12
  • MPL-2.0

GUI containers

mathlib-fp

Scientific, statistical and engineering mathematics for Free Pascal, with no third-party runtime dependencies.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 12
  • MIT

Science

PBFMapRenderer

Render Mapbox vector tiles (MVT/PBF) from MBTiles to a Delphi TCanvas — Mapbox GL style.json, expression engine, label placement, GDI+/Skia backends, zero runtime dependencies.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 10
  • MIT

Graphics

DelphiKeyboard

IME에 의존하지 않는 두벌식 한글 조합 오토마타 내장 Delphi VCL 가상 키보드

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9
  • MIT

System

horse-provider-crosssocket

High-performance, security-hardened CrossSocket provider for the Horse web framework. Replaces the default Indy provider with IOCP/epoll async I/O, an object pool, enforced request limits, and OpenSSL 3.x native TLS.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9

Networking

Skia4DelphiCanvas

Skia-backed implementation of Vcl.Graphics.TCustomCanvas for Windows/Delphi and FPC on Windows or Linux.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 9
  • MIT

Graphics

velox-ui

VeloxUI — High-velocity, zero-dependency Object Pascal (Delphi VCL & Lazarus/Free Pascal LCL) desktop MVVM & Windows 11 Fluent UI micro-framework: DWM Mica, undocumented uxtheme dark scrollbars, GDI+ vector cards, High-DPI control fixers, flicker-free generic OwnerData virtual grids, and NT Kernel helpers.

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

GUI containers

DelphiBoostPack

A comprehensive suite of utilities enhancing Delphi development needs.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 7
  • GPL-3.0

Other

cblas

Pascal unit interface to cblas, atlas, openblas

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 6

Bindings

dglOpenGL

Personal fork of dglOpenGL

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 6

Bindings

KnockoutOP

KnockoutOP combines the observable type from the KnockOff library with the DelphiHTMLComponents library to provide an HTML-based MVVM framework for Delphi.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • Apache-2.0

Data controls

mormot2-ai

mORMot2-based AI/LLM extension for Free Pascal and Delphi: MCP server, LLM clients, embeddings, vector stores, RAG

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 6

Networking

glr

[Finished] glrenderer — Delphi game development framework (OpenGL, Bass, Box2D) for Windows

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 5

Games and Game Engines

Pascal-BP-Neural-Network

A simple yet high-performance BP Neural Network implemented in Free Pascal.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 5
  • MIT

Science

prism

GPT Transformer developed in Delphi 13

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 5

Science