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Catalog

30,061 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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Delphi-TFunctionParser

a non visual delphi component that can evaluate mathematical functions defined by the user on runtime.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 5

Science

vdb

VDB — İlişkisel Veritabanı Motoru / Relational Database Engine

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 5

Database

BeamSchemeV1

A profile and image analysis tool for medical physics. This is virtually a complete rewrite of BeamScheme V0.54.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 4

Science

GeminiFileTools

A set of tools for parsing, viewing, and extracting data from Google Gemini AI Studio conversation files.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 4

Applications

pascal-pn

Polish notation implementation in Pascal

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3
  • BSD-2-Clause

Language Tools

PascalAI

PascalAI — AI-native Pascal language compiler (Lape VM backend)

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 3
  • MIT

Language Tools

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

Wasuro

A WebAssembly virtual machine for the Asuro operating system, written in Standard Pascal & designed to run on bare metal.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 3

Language Tools

BeamETF

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 2

Other

crenshaw-compiler

Jack Crenshaw's 'Let's Build a Compiler!' tutorial implemented in Free Pascal — v1 (Ch 1-10, 68k asm) and v2 (Ch 11-16, TINY 2.1 + stack VM)

  • Active
  • Other
  • Lazarus
  • GitHub
  • ★ 2

Language Tools

dcu32int

The utility DCU32INT parses *.dcu file and converts it into a close to Pascal form.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • Apache-2.0

Language Tools

stb

Pascal port of stb single-file public domain libraries

  • Quiet
  • Library
  • GitHub
  • ★ 2

Bindings

syc

Streaming archiver + compressor with its own LZ codecs, written from scratch in Free Pascal (x86-64 asm hot paths). Tuned for modest hardware. Alpha.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 2
  • MIT

Files and Drives

VisualFreePascal

This project offers custom FreePascal units that implement native bindings for GTK, Win32, and macOS APIs. It focuses on a lightweight abstraction layer that enables direct system integration, clean cross-platform development, and precise access to platform-specific features without external frameworks.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 2

Bindings

-TyCad

A cross-platform schematic program for FreePascal/Lazarus, ported from TinyCAD. Reads and writes TinyCAD designs and libraries, with extended functionality for schematics.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 1
  • LGPL-2.1

Other

3ds-Object

A program for displaying 3ds/obj objects and for creating individual bitmap frames.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • GPL-2.0

Graphics

bjdpas

Binary JData Readers and Writers for Object Pascal

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 1
  • Apache-2.0

Bindings Language Tools

cbzmanager

A FreePascal .cbz manager app

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 1
  • MIT

Other

Claus4D

Definition file importer, processor and exporter for Paradox Interactive's Clausewitz game engine

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • MPL-2.0

Games and Game Engines

CommonUtils

Free Pascal and Lazarus utilities and routines to work with various subjects.

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 1
  • LGPL-3.0

Other

Delphi_sql_API

Generates Delphi code from your database and lets you build typesafe SQL queries through its fluent API.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 1
  • Apache-2.0

Database

json4d

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • MIT

Other

MyraLang

Myra is a statically-typed, compiled language in the Pascal/Oberon tradition. It transpiles to C++23 and uses Zig as a build backend, producing real x86-64 executables and libraries for Windows and Linux. The backend is invisible. You write Myra. You get binaries. Myra - Pascal. Refined.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Other

pixie

Clone of https://gitlab.com/retrofoxed/pixie

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 1
  • MIT

Graphics GUI containers

pixie

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 1
  • MIT

Other

solver-fpc

SOLVER toolset (W.S.C. Gurney) ported to Free Pascal - ODE/DDE solver with CSV/TSV export and plotting

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 1

Charts and Graphs

sw-cor24-basic

1970s-terminal-inspired "Time Sharing" BASIC interpreter for COR24 ISA hardware and emulator

  • Active
  • Library
  • GitHub
  • ★ 1
  • MIT

System

TinyPascal

TinyPascal is a lightweight, embeddable Pascal virtual machine built in Delphi. It compiles modern Pascal to bytecode for execution in a stack-based VM with UTF-8 support, strong typing, and modular architecture. Ideal for scripting, education, rapid prototyping, and language research.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 1
  • BSD-3-Clause

Language Tools

TJSON

Native Delphi Json Parser with read support for Json5

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • GPL-3.0

Other

vscope

Multi-Wave Oscilloscope Data Visualiser

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 1
  • BSD-3-Clause

Other

wmsama

Samarinda DE's Window Manager

  • Active
  • Library
  • GitHub
  • ★ 1

Other

JsonToDelphi

generate delphi classes from json (Json To Delphi Class Generator / JSON Data Binding Tool FMX, VCL and uniGUI) (mirror)

  • Active
  • Application
  • Lazarus and Delphi
  • Codeberg

Language Tools

YamlPuller

A YAML 1.2 pull parser for Object Pascal (Free Pascal / Lazarus) with an FCL JSON bridge

  • Package
  • Lazarus
  • GitHub

Language Tools