Sign in Join

Live chat for Free Pascal, Lazarus, Delphi and every Pascal programmer.

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.

Random project How the catalog works

The-syntax-diagram-editor

This program is intended for constructing syntactic diagrams using vector graphics.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 9

Graphics

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

VecDraw

Vector graphics editor written using only standard libs

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

Graphics

Nassi-Shneiderman-Editor

Nassi-Shneiderman Editor: Intuitive graphical tool for creating and editing Nassi-Shneiderman diagrams, enhancing algorithm visualization and software development

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 10
  • MIT

Graphics

veditor

Vector editor (school project)

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1
  • Unlicense

Graphics

TpX: drawing tool for TeX

TpX is a simple graphical editor for Windows for inclusion graphics into TeX files. It can also be used as a standalone editor for vector graphics.

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

Graphics

Diagram Designer

Simple vector graphics editor for creating flowcharts, diagrams and slide shows.

  • Application
  • Delphi
  • SourceForge
  • MIT License

Graphics

Editor-De-Vectores

My simple vector graphics editor written with pascal and magic

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1

Graphics

VectorFontEditor

Borland CHR and Microsoft FON vector font editor for old school coders/users

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 12
  • MIT

Graphics

GreyDraw

GreyDraw Vector Editor

  • Archived
  • Application
  • Lazarus
  • GitHub
  • ★ 2

Graphics

GraphicEditor

SImple vector graphic editor on fpc/lazarus

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 2

Graphics

LDraw Design Pad

LDraw Design Pad is THE author/editor/reviewing reference tool for LDraw part files

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

Graphics

Thred32

Thred32, an open-source Delphi project translated from the famous Thred: The Embroidery Software and Designs. Thred (and also Thred32) is a versatile and free digitizing program for embroidery machines. Thred is originally developed by Morin McCoskey. http://www.thredworks.com/features.php The name Thred comes from the words thread and editor combined, but it's more than just an editing program for finished designs Finally Thred32 is attended because developers love and uses large part of Graphics32 Library :)

  • Quiet
  • Application
  • Delphi
  • SourceForge

Graphics

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

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

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

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

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

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

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

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

gmlib_v2

Google Maps Library v2 is an open source library that encapsulates the Google Maps API.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 30

Graphics

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

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

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

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

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

tpx

TpX: drawing tool for TeX

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 15
  • GPL-2.0

Graphics

FonLibrary

FON Vector/Bitmap Library for Free Pascal and Turbo Pascal

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

Graphics

BitmapFontEditor

Microsoft Bitmap FON and FNT (ROM files) Editor. Turn any True Type Font (TTF) to FON or FNT format. Deluxe Paint II and Amiga font formats supported now. Plus a QBasic Script Interpreter

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 12
  • MIT

Graphics

mathlib-fp

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

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

Science

PaskalCPP

PaskalCPP is a systems language by Jarrod Davis: Pascal/Oberon-style syntax that transpiles to C++23 and builds with a bundled Zig/Clang toolchain. Mix PaskalCPP and C++ in one file, no bindings. Includes a Delphi-built compiler and language server, an Electron/Monaco editor, and diagnostics mapped to your source. Native Windows and Linux binaries.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 12
  • MPL-2.0

Language Tools

Delphi-LitCrypt

Delphi plugin that provides compile-time string encryption

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 11
  • MIT

Cryptography

AstrobloQ

AI Fermi Paradox Simulator

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 10
  • MPL-2.0

Science

SVGFolder2DelphiUnit

Generate a Pascal unit by placing the source code of all SVG files in an array of strings.

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 10
  • AGPL-3.0

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

grape

grape source code

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 7

Other

ppm-mcp-tools

Source code for PPM MCP tools — Pascal/Delphi MCP servers for Claude Code

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 7

Networking

rezvivo

Open-source Zwift alternative in alpha: train on a smart trainer or freely explore OpenStreetMap in 3D. Indoor cycling, interval workouts, walking, free flight and Dream Worlds.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 6
  • GPL-3.0

Games and Game Engines

mb3d-lazarus

Lazarus and Free Pascal port of Mandelbulb3D for creating and rendering three-dimensional fractal art.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 5
  • LGPL-2.1

Graphics

bp

Better Pascal, LLM-friendly mem-safe FP dialect based on Rust, Go & Goose concepts

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 4

Language Tools

JoltPhysics4Delphi

A Delphi wrapper and object-oriented binding layer for the Jolt Physics high-performance rigid body physics engine.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 4
  • MIT

Bindings

Logo-Creator

A compact but good Logo Creator that converts the Windows TrueType font set into Logos.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 4

Graphics

PaxLang

Pax is a Pascal/Oberon-inspired systems language that compiles to modern C++23 using Zig’s Clang toolchain, with a pass-through design that lets you mix raw C++ and Pax code freely in the same source file.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3

Language Tools

TLComponents

TLComponents for Delphi (Vcl, FMX, Android64)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 3

Other