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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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PureParseFloat

Just Good ParseFloat Algorithm named PureParseFloat

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

Other

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

ZXing.Delphi

ZXing Barcode Scanning object Pascal Library for Delphi VCL and Delphi Firemonkey

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 526
  • Apache-2.0

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

pixie

A lightweight HTML/CSS rendering engine for Free Pascal (Lazarus) and Delphi (VCL & FMX).

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 25
  • MIT

Graphics

SQLBuilder4Delphi

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

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 111
  • Apache-2.0

Database

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

csscontrols

Implementation of basic css drawing for pascal (fpc, lazarus, delphi)

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 38
  • Apache-2.0

GUI containers Graphics

toml-delphi

Toml parser and writer for Pascal and Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 35
  • MIT

Language Tools

toml-fp

Simplify parsing and writing TOML config files in Free Pascal

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

Language Tools

DX.TOML

Delphi TOML Library

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 24
  • MIT

Other

myJSON

JSON parser for delphi 7 and earlier (and maybe even later)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 22
  • MIT

Other

ArgParse

Delphi argparse

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 21
  • MIT

System

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

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

tina4delphi

Tina4Delphi - A comprehesive set of tools to make REST and application integration better

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 20
  • MIT

Networking

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

ExprParser

Simple, but flexible expression parser for Delphi. Forked from JvExprParser.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 16

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

argparser-fp

A lightweight, record-based command-line argument parser for Free Pascal. `ArgParser-FP` is designed for small to medium console applications, offering a clean API to handle arguments with minimal setup.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 14
  • MIT

Other

Express

Fast modern scripting engine for Free Pascal

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 14
  • Apache-2.0

Language Tools

MathParser

An expression parser and a virtual machine. A formula is compiled to a flat byte array and evaluated by a linear pass over it, with no allocation on the path of an ordinary formula. On x86-64 an optional accelerator compiles that bytecode to machine code and hands anything it declines back to the interpreter, so an answer is never fast but wrong. Results are cached by shape: once 2 + 3 has been compiled, 5 + 7 reuses the same script and only writes the numbers into a copy. 163 functions to call and 249 names in the table, your own functions and variables bound by address, symbolic differentiation. The Lazarus parser packages require FCL and define NOFORMS and NOGRAPHICS, so they install without LCL. WebAssembly uses a separate console configuration. Two units ask for more at their defaults, Thread through Application.HandleException and BlobManager through TGraphic; drop the defines and add the LCL to the package if you want them.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 14
  • MIT

Language Tools In the Online Package Manager

Utils

A general utilities library for Delphi projects

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 12
  • MIT

Other

delphi-lexer

[LIB] Tokenize Delphi source code into a complete, position-aware token stream with full round-trip fidelity and explicit invalid-token handling for parsers, formatters and tooling. Includes TokenCompare, TokenStats, TokenDump utilities along with custom Syntax Highlighter for SynEdit.

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

Language Tools

IsapiScale

make web server Delphi apps scalable

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 10

Networking

tidykit-fp

A comprehensive toolkit for Free Pascal that provides an easy-to-use, unified interface for common operations. Inspired by C++'s Boost.

  • Archived
  • Package
  • Lazarus
  • GitHub
  • ★ 9
  • MIT

Files and Drives

fpc-xon

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 8

Other

tc-csvtab2

WLX for Total Commander to show and edit CSV

  • Active
  • Library
  • GitHub
  • ★ 8
  • GPL-2.0

Grids

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

Delphi-Generic-Database

Classes para Conexão Agnóstica à Bancos de Dados e Exibição de Dados em Componentes de Forma Persistente

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 7

Database

delphi-forms-parser

[LIB] A standalone Delphi parser for VCL and FMX form files (.dfm/.fmx) in both text and binary formats. Produces a typed AST with full round-trip fidelity for migration, analysis, and code generation workflows.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 6
  • MIT

Language Tools

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

Delphi-TFunctionParser

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

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 5

Science

stb

Pascal port of stb single-file public domain libraries

  • Quiet
  • Library
  • GitHub
  • ★ 2

Bindings

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

bjdpas

Binary JData Readers and Writers for Object Pascal

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

Bindings Language Tools

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

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

wmsama

Samarinda DE's Window Manager

  • Active
  • Library
  • GitHub
  • ★ 1

Other

YamlPuller

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

  • Package
  • Lazarus
  • GitHub

Language Tools