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.
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.
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.
This expert for the Delphi IDE brings back some refactoring based on the DelphiLSP
Delphi client for NATS, the cloud native messaging system.
JSON object for Delphi based on IUnknown and Variant
RAD Studio (Delphi 12) IDE plugin: inline color swatches in the editor gutter; Shift+click to pick a color. VS Code-style color decorators.
A sandbox-first JavaScript engine for AI agents: host-set capabilities and limits, deterministic runs, TypeScript annotations, test262 on every pull request.
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.
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 general utilities library for Delphi projects
Pascal Framework is a foundational library for Free Pascal, Lazarus and Delphi applications.
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.
mORMot2-based AI/LLM extension for Free Pascal and Delphi: MCP server, LLM clients, embeddings, vector stores, RAG
object pascal AST parser
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.
DelphiAI - MCP for the Delphi IDE
A flexible, SLF4J-inspired logging facade for Delphi
A Delphi component library for reading and writing smart cards, contactless tags, magnetic stripes and RFID input on Windows.
lispa, aka "LFP" or "Lisp Flavored Pascal"; is a fast, and embeddable scripting lisp that is fundamentally pascal with lisp syntax. Inspired from LFE (Lisp Flavored Erlang)
Lazarus AI Agent
A native reimplementation of a Pascal compiler from 1981
Energy and age-driven cellular automaton in Object Pascal, inspired by Conway's Game of Life — grows, ages, and reproduces on a toroidal grid.
