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Catalog

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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chart4delphi

Unit for creating graphics without using third-party components.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 56
  • GPL-3.0

Charts and Graphs

XelCharts

Bar chart, Pie chart, Line chart and Spark Line.

  • Package
  • Lazarus
  • MIT

Charts and Graphs In the Online Package Manager

CrossGraph

A plotting engine and a visual component that draw what MathParser computes: curves with their discontinuities, intersections and extrema, cartesian and polar systems, and surfaces z = f(x, y) with contour lines. The engine samples on worker threads, knows nothing about a canvas and builds headless; the component is a thin layer over it. Free Pascal 3.2.2 and newer builds it: the sort in CrossVision.Geometry that once needed function references is written out in the same unit. Delphi 10.2 Tokyo and newer builds it as well.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 4
  • MIT

Charts and Graphs In the Online Package Manager

WEBGRAPH

Cette commande, écrit en Pascal (Turbo Pascal ou Free Pascal), permet d'afficher un graphique en toile d'araignée à partir de données.

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 2
  • MIT

Charts and Graphs

CMD Calculator

Command-line calculator with many features: - Syntax and error highlighting - Text representation of numbers (English, French, Czech) and Greek numerals - Modes for angles (Radians, Gradians, Cycles and Degrees) - Chart for single variable "x" etc.

  • Quiet
  • Application
  • SourceForge

Science

NiceChart

Light-weight chart component with basic functionality (bar series, line series, smooth spline series)

  • Package
  • Lazarus
  • MPL

Charts and Graphs In the Online Package Manager

Simple 2D Windows Grapher

An efficient 2D Simple Graphing program for windows, perfect for plotting collected data incorporating features of cricket graph which allow you to apply a function to all your data. Regression Lines for data.

  • Quiet
  • Application
  • SourceForge
  • Artistic License

Charts and Graphs

TCustomPlot

TCustomPlot is a custom plotting component. It allows you to plot a series of points connected with line.

  • Library
  • Lazarus

Charts and Graphs

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

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

G-Code-Flow-Temperature-Controller

A post processing script for OrcaSlicer that demonstrates how automatically adjusting Nozzle Temperature and Flow rate (Print Speed) can significantly improve both print time and quality, while also simplifying slicer settings.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 318
  • MIT

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

Delphi-GCharts

Delphi-GCharts is a Delphi library of components to generate charts in uniGUI Framework using the Google Charts API

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 146
  • Apache-2.0

Charts and Graphs

Delphi-MCP-Server

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

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

Networking

MarkdownShellExtensions

A Markdown Text Editor to manually edit a markdown file, with instant preview of the output in a HTML Viewer. A Preview handler which allows you to see the content of the markdown file without open it, in the "Preview Panel", integrated into Windows Explorer.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 120
  • Apache-2.0

Edit and Memos

scalemm

Fast scaling memory manager for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 107

System

MarkdownHelpViewer

MarkdownHelpViewer is an integrated help system based on files in Markdown format, for Delphi applications, plus a useful component to embed help inside the App.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 94
  • Apache-2.0

Applications

DinosOffice

Compontent delphi for OpenOffice/LibreOffice

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 88
  • MIT

Reporting

Markdown4D

Native Delphi Markdown library: CommonMark/GFM parser with public AST, incremental/streaming parsing, HTML renderer, markdown writer, and custom-drawn VCL & FMX viewer/editor components

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 72
  • MIT

Edit and Memos

MarkdownProcessor

A Markdown Processor Library for Delphi, to process and convert markdown files to HTML.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 56
  • Apache-2.0

Other

RADWinUI

A WinUI-3 framework for Delphi + IDE Plugin and Tool Palette components.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 55
  • MIT

Other

SVGIconViewer

A simple SVG icon library viewer containing over 47,700 individual icons for windows

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 52
  • MIT

Graphics

Chart4D

Native Delphi charting library for VCL and FMX: clean newspaper-style defaults, PNG export, zero dependencies

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 43
  • MIT

Charts and Graphs

StaticCodeAnalyser

Static code analysis for Delphi 12 & 13 and Lazarus / Free Pascal. RAD Studio IDE plugin (32/64-bit) + standalone GUI + CLI, one engine. 201 rules (Pascal AST + DFM/LFM forms): leaks, SQL injection, dead handlers, hardcoded secrets, Unicode & Trojan Source, Win64 pointer bugs. SARIF for CI/CD, SonarQube push.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 43

Language Tools

DX.Logger

Minimalistic cross-platform logging library for Delphi with extensible provider architecture

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 30
  • MIT

Other

d2webcharts

Este repositório contém um conjunto de classes Delphi desenvolvido para gerar gráficos no formato HTML. Inicialmente criado para um projeto em D2Bridge, um framework que permite compilar projetos VCL ou FireMonkey para a Web com o mesmo código.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 29

Charts and Graphs

TWLazUI

"A modern, Tailwind CSS-inspired UI component library for Lazarus and Free Pascal, powered by BGRABitmap." (Pustaka komponen UI modern bergaya Tailwind CSS untuk Lazarus dan Free Pascal, ditenagai oleh BGRABitmap.)

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

GUI containers

PineEngine

A Pine Script interpreter written in Delphi and Free Pascal, designed to execute scripts and return results as JSON.

  • Active
  • Application
  • Lazarus and Delphi
  • GitHub
  • ★ 28

Language Tools

vsop2013

Astronomy. VSOP2013 planetary positions. PlanetFun App: Solar system model in 3D. LeapFrog Gravity Integration. Stars, Moon and planets. The discovery of Neptune

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 28
  • MIT

Science

KittoX

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

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

Networking Database

Delphi-RAG-Lint

Delphi-native, MIT-licensed RAG + linter for Delphi/Pascal source code. Symbol-exact + fuzzy + tree-sitter lint. Pure Delphi at runtime.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 19
  • MIT

Language Tools

BookPart_3

This project will accompany Part 3 of Writing an Interpreter in Object Pascal.

  • Active
  • Other
  • Lazarus and Delphi
  • GitHub
  • ★ 18
  • Apache-2.0

Learning and Examples

Blinki

A library for modern, beautiful Text User Interfaces (TUIs) for Delphi

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

Other

tina4pascal

HTML-driven native apps in Free Pascal — one codebase, six targets, no browser, no widget toolkit

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 16
  • MIT

Networking

Admiral

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 14
  • MIT

Database

pk_gtfc

Component show chart gantt for Lazarus\CodeTyphon

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 13
  • LGPL-2.1

Charts and Graphs

blood

Lazarus application project with a TChart component and a plugged in TChartToolset component and configured tools to visualize and explore blood data in a chart

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 10
  • MIT

Charts and Graphs

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

R-Plot

Visualization of measuring data

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 10
  • MIT

Charts and Graphs

The-syntax-diagram-editor

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

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 9

Graphics

DFExcel

A powerful Delphi unit for seamless interaction with Microsoft Excel, providing a comprehensive set of procedures and functions to manipulate Excel files programmatically. Compatible with modern Delphi versions.

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

Other

MT4-PSQL

Export tick data from Metatrader4 into PostgreSQL using a producer-consumer thread based approach

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 8
  • LGPL-3.0

Database

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

BlaiseVue

The Universal Reactive Framework for Object Pascal. Build modern Web (SPA/SSG), Native Mobile (Android/iOS), and Ultra-light Desktop apps from a single Pascal codebase.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 7

Other