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Catalog

30,058 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

PPface

PPface is vector processor emulator / simulator (SIMD array processor with 1-bit processing elements). VEPRAN language used to design parallel algorithms and operate data slices. The system allows to visualize algorithm work by viewing vector memory and registers, it supports debugging and animated program execution. To run this app on 64-bit system please install Windows Virtual PC and Windows XP Mode.

  • Quiet
  • Application
  • SourceForge
  • BSD License

Science

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

lazpaint

🎨 Cross-platform image editor with raster and vector layers similar to Paint.Net written in Lazarus (Free Pascal)

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 556
  • GPL-3.0

Graphics

5.0 from 1 member

AutoREALM

AutoREALM is a free role-playing game mapping program originally made by Andrew Gryc. This program is an excellent mapping program that can design castles, caves, cities, dungeons and more. New developers are more than welcome! Previously, development were using Delphi language. Some attempts to rewrite it in other languages were done, but currently (since January 2012) there is an attempt or rewrite using those technologies: _ C++11 _ wxWidgets 2.9 (will be 3.0 when it will be released) _ openGL _ pluma framework (a fixed version located on bitbucket) The design of the actual C++ code-base primarily targets clean source code and high modularity of source code, to allow easy reuse of the code and fast learning for people who might join the effort. Current development is located on https://bitbucket.org/bmorel/autorealm . Howerver, older repositories are still here in case someone would like to consult them, and to allow easy access to algorithms they might contain.

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

Games and Game Engines Graphics

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

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

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

mb3d

Mandelbulb3D

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 204
  • LGPL-2.1

Graphics

mcx

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

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 197

Science

FastMath

Fast Math Library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 194

Science

Suspending-Techniques

Comparing, discussing, and bypassing various techniques for suspending and freezing processes on Windows.

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 139

System

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

ScannerMApp

A QR code and barcode scanner app built with Delphi and FireMonkey, using ZXing.Delphi and TFrameStand. On Google Play.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 87
  • Apache-2.0

Applications

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

SedaiBasic

SedaiBasic Interpreter with VM

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 31
  • GPL-3.0

Language Tools

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

MonsterBook

MonsterBook (L'oeuvre inhumaine) est une application DOS écrit en Borland Pascal de 1991 à 2007

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 23
  • MIT

Applications

pdo-tools

PDO tools extracts and converts data from the PDO format used by Pepakura Designer into pdf and svg formats

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 23
  • GPL-2.0

Graphics

file2knowledge

Delphi Lab showcasing OpenAI's v1/responses endpoint with vector search, integrations, and session-based chat. Practical integration of generative AI. Also manages Deep Research.

  • Active
  • Other
  • Delphi
  • GitHub
  • ★ 22

Learning and Examples

clayworks_2.45

Old DOS 3D modelling program written in Pascal & Assembler

  • Quiet
  • Application
  • GitHub
  • ★ 21

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

VecDraw

Vector graphics editor written using only standard libs

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 19
  • Unlicense

Graphics

Examples

Collection of useful and mostly non trivial examples that can be used to start own projects

  • Active
  • Other
  • Lazarus
  • GitHub
  • ★ 18

Learning and Examples

pasriscv

PasRISCV is a RV64GCV/RVA23 RISC-V emulator, which is implemented in Object Pascal

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 17
  • Zlib

System

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

MysticIRC

Mystic BBS 1.11IRC — GPLv3 community fork. RIPscrip v1.54 (42/42 commands, pixel-perfect). BINK, FidoNet AreaFix/FileFix/Tic. ICE colors. Built-in archivers + MP3/MP4 metadata (MARC/MediaTag). DOS i8086 with Watt-32. RIPView + Free Vision TUI. Builds with FPC 2.6.4irc.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 15
  • GPL-3.0

Networking