30,060 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.
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.
Command line argument parser for Delphi.
Delphi argparse
Cross-platform Delphi crash/exception reporter (Linux, macOS, Android, iOS) that emits EurekaLog .el-format reports (open in the EurekaLog Viewer): call stacks, CPU registers, modules, source line numbers. RTL-only core, no FMX dependency, no EurekaLog license required.
A curated list of awesome Delphi/FreePascal/(any)Pascal frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff. Open source and freeware only!
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.
Delphi reference info
Pupular OOP-OPF Library for Delphi (from DXE6 to latest version)
Enables HTTP batch request with AngularJS
A Delphi / Lazarus / C++Builder simple and small class for fast JSON parsing.
A Markdown Processor Library for Delphi, to process and convert markdown files to HTML.
A debugger for delphi in visual studio code, and also a MCP server to give claude/copilot/etc authonomous delphi debugging capabilities
This expert for the Delphi IDE brings back some refactoring based on the DelphiLSP
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.
Delphi client for NATS, the cloud native messaging system.
Tool to improve compiling proficiency for AI coding agents (i.e. Claude Code)
SedaiBasic Interpreter with VM
JSON object for Delphi based on IUnknown and Variant
A Pine Script interpreter written in Delphi and Free Pascal, designed to execute scripts and return results as JSON.
An MCP server that turns a Windows RAD Studio machine into a remote backend for coding agents: safe editing, real MSBuild builds, git, scaffolding, deploy & remote run via PAServer, Android (adb), Linux and Windows desktop control, DelphiLSP navigation, vault. Per-workspace security. Built for our own use, shared under MIT; no commercial plans.
Yet Another Delphi Formatter
RAD Studio (Delphi 12) IDE plugin: inline color swatches in the editor gutter; Shift+click to pick a color. VS Code-style color decorators.
Lua and other programming in simple platform to make programming fun
A sandbox-first JavaScript engine for AI agents: host-set capabilities and limits, deterministic runs, TypeScript annotations, test262 on every pull request.
One-click installer bundling the Unleashed Pascal compiler + IDE (Windows/Linux)
Delphi-native, MIT-licensed RAG + linter for Delphi/Pascal source code. Symbol-exact + fuzzy + tree-sitter lint. Pure Delphi at runtime.
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.
This project will accompany Part 3 of Writing an Interpreter in Object Pascal.
Gerenciador de dependências nativo, moderno e leve para projetos Delphi, desenvolvido sob arquitetura hexagonal e com suporte a downloads concorrentes.
Sedai Audio Foundation - Professional audio synthesis library in Free Pascal. 5 Synthesis Engines: Classic/Subtractive, FM (DX7-style), Wavetable, Additive, SID Evo.
Delphi WinMD Parser & Code Generator
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.
Language Tools In the Online Package Manager
A Delphi-aware reverse-engineering toolkit — recover the class model from any Delphi PE, and unpack packed ones to get there.
A general utilities library for Delphi projects
Pascal Framework is a foundational library for Free Pascal, Lazarus and Delphi applications.
Go_VM — Delphi Go Source Virtualizer & Obfuscator
Lazarus CSS styled controls
HTTP/2 and gRPC for Delphi and Free Pascal, built on libnghttp2. Framework-agnostic gRPC layer — protobuf codec, service registry, dispatcher, all four RPC shapes — plus a .proto code generator accepting 99.5% of real googleapis schemas. epoll/IOCP event loops, TLS/mTLS, graceful shutdown.
High-performance, security-hardened CrossSocket provider for the Horse web framework. Replaces the default Indy provider with IOCP/epoll async I/O, an object pool, enforced request limits, and OpenSSL 3.x native TLS.
Skia-backed implementation of Vcl.Graphics.TCustomCanvas for Windows/Delphi and FPC on Windows or Linux.
A comprehensive toolkit for Free Pascal that provides an easy-to-use, unified interface for common operations. Inspired by C++'s Boost.
医用画像フォーマット「DICOM」を読み込む方法。
MCP Server (HTTP) that provides Delphi Abstract Syntax Tree tools
A small command line utility which allows you to generate Delphi package files (DPK) based on the given template file.
Parse and do some correctness checks (that the compilers don't) on Pascal code
mORMot2-based AI/LLM extension for Free Pascal and Delphi: MCP server, LLM clients, embeddings, vector stores, RAG
Conversion of the mainfram IBM 370-based Pascal compiler to run under Free Pascal
Utilities for AI-assisted Delphi code analysis and builds.
object pascal AST parser
Notepad++ plugin that plots the formula under your cursor
An extended version of Piotr Piątek's PB-2000C emulator, with corresponding branches for original versions and versions with changes. 'main' tracks [LATEST]-wo, other branches are [VER]-wo for my changes and [VER]-piotr433 for the corresponding original.
[MIRROR] simple ansi document. A Document-Format originally designed to be formatted using ansi
A partir de um .dproj e do nome da unit, rastreia usos reversos até o DPR e gera grafo HTML navegável, relatório e log. Delphi 13.
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.
Framework-agnostic Spintax engine for Object Pascal — enumerations, permutations, scoped variables, conditionals, plural agreement, includes, full post-processing. Zero dependencies, MIT, Free Pascal 3.2.2+. Parity-gated by the shared golden corpus that also gates @spintax/core.
Accessibility tool for active application / explorer quick selection
Doom 3 (id Tech 4) levels, materials, md5 models and sounds rendered and played with Castle Game Engine (Object Pascal)
