Sign in Join

Live chat for Free Pascal, Lazarus, Delphi and every Pascal programmer.

Catalog

30,057 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.

Random project How the catalog works

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

chakracore-delphi

Delphi and Free Pascal bindings and classes for Microsoft's ChakraCore library

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 148
  • MIT

Bindings

chakracore-delphi

Delphi and Free Pascal bindings and classes for Microsoft's ChakraCore library

  • Active
  • Library
  • Lazarus and Delphi
  • Codeberg

Bindings

DWScript

Delphi Web Script general purpose scripting engine

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 212

Language Tools

PospoliteView

Pospolite View aims to be a simple HTML viewer engine fully made in Free Pascal.

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 39
  • BSD-3-Clause

Graphics

DWScript

Delphi Web Script general purpose scripting engine

  • Active
  • Library
  • Delphi
  • Codeberg

Language Tools

jskit

JavaScriptCore based script engine for Delphi and CrossVcl

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 79
  • MPL-2.0

Language Tools Bindings

EdgeAudio

Voice Activity Detection (VAD)/talkover for Delphi (VCL TEdgeBrowser/WebView2), real-time audio capture and playback via JS bridge, high-pass filter, hysteresis, and an event engine for integrations.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 5
  • MIT

Multimedia

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

besen

Complete ECMAScript Fifth Edition Implemention in Object Pascal

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 233
  • LGPL-2.1

Language Tools

pasvulkan

Vulkan header generator, OOP-style API wrapper, framework and prospective Vulkan-based game engine for Object Pascal

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 230
  • Zlib

Bindings Graphics

WebUI4Delphi

WebUI4Delphi is a WebUI wrapper, which allows you to use any web browser as a GUI, with Delphi or Lazarus/FPC in the backend and HTML5 in the frontend.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 163
  • MIT

Bindings

hprose-delphi

Hprose is a cross-language RPC. This project is Hprose 2.0 for Delphi and FreePascal

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 125
  • MIT

Networking

DelphiGoogleAPI

Using the Google Cloud Platform from your Delphi service on the Google Compute Engine

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 74

Networking

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

PasClaw

Ultra-lightweight native AI agent framework written entirely in Object Pascal for Delphi and Free Pascal, designed for performance, portability, and extensibility.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 67
  • MIT

Science

DWScript

DWScript is an object-oriented scripting engine for Delphi based on the Delphi language, with extensions borrowed from other Pascal languages.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 62

Language Tools

Javascript4D

A native JavaScript (ECMAScript 5.1) parser and interpreter written in Delphi/Object Pascal. Execute JavaScript code directly from your Delphi applications.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 61
  • MIT

Language Tools

MarkdownProcessor

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

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

Other

kitto3

A Delphi framework for creating data-driven WEB SPA applications with ExtJS 7.x

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 38
  • Apache-2.0

Database Networking

Delphi_Utils_Library

A library with some useful utilities for your Delphi Apps.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • BSD-3-Clause-Clear

Other

kitto

A Delphi framework for creating data-driven WEB SPA applications with ExtJS 3.4

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 36

Database Networking

kitto_frozen

A framework for creating data-driven web applications with Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 32

Database Networking

gmlib_v2

Google Maps Library v2 is an open source library that encapsulates the Google Maps API.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 30

Graphics

KittoX

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

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

Networking Database

IAMClient4D

IAMClient4D is a Delphi client library for integrating applications with Keycloak, providing full OAuth2/OpenID Connect support (including PKCE), token and user management, and a lightweight asynchronous task framework (Async.Core) for thread-safe operations across VCL and FMX.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 24
  • Apache-2.0

Security Networking

MCH_Delphi_Software

Delphi In-memory databases and miscellaneous projects.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

Database

underscript

A Lua extension library that allows to run various scripting languages from within Lua scripts, cross-language require scripts and load 32-bit Lua on Lua 64-bit

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 19
  • MIT

Language Tools

Emmet-Pascal

Emmet components for use in Delphi or Lazarus

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 12

Edit and Memos

Emmet-Pascal

Emmet engine for Delphi and Free Pascal.

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 10
  • Free to use in non-commercial software

Edit and Memos In the Online Package Manager

WebSofa

JavaScript port of PasSofa

  • Quiet
  • Library
  • GitHub
  • ★ 10
  • MIT

Science

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

CXComponents

A collection of custom UI components for Lazarus.

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 6
  • MIT

GUI containers

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

spintax-win

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.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 3
  • MIT

Other

corvus-regex-ecma262-pas

ECMA-262 (JavaScript) regular expressions for Object Pascal: the grammar and the answers of RegExp, every flag, over UTF-8 and UTF-16.

  • Active
  • Library
  • GitHub
  • ★ 1
  • Apache-2.0

Other

fpcjs

Automatically exported from code.google.com/p/fpcjs

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 1

Language Tools

DWScript

. Delphi Object-oriented scripting engine for Delphi based on the Delphi language, with extensions borrowed from other Pascal languages FreePascal, Prism, etc.. It introduces a few Pascal language extensions of its own as well.

  • Library
  • Delphi
  • Bitbucket

Language Tools

sherpa-onnx

. Delphi FPC Speech-to-text, text-to-speech, speaker diarization, speech enhancement, source separation, and VAD using next-gen Kaldi with onnxruntime without Internet connection. Support embedded systems, Android, iOS, HarmonyOS, Raspberry Pi, RISC-V, RK NPU, Ascend NPU, x8664 servers, websocket server/client, support 12 programming languages

  • Library
  • Lazarus and Delphi
  • GitHub

Multimedia