30,063 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.
Foreval is parser, compiler and evaluator of mathematical expressions in run-time with support complex numbers. After parsing and building tree of expression is perform optimization and compiling into x86-32 instructions and returns address of compiled expression. For expressions can by finding derivatives by symbolic or numerical differentiation.
Delphi source code tokenizer and parser into a syntax tree; where tokens are first-class citizens along with nodes
Embed syntaxer. Parses input file according to user-definable syntax spec. Builds tree with syntax fluff removed, only includes parts of input specifically tagged to save on the tree. Applications can traverse the tree to implement the semantics.
object pascal AST parser
THTMLdom is a (Delphi) class with functions to read a HTML source file and dissect it into a tree of THTMLelement. The attributes of the HTML tags are stored in the elements. Functions are provided to select elements on the basis of the attribute values or tag names. The structure of the tree can be shown and it can be rendered as plain text. The source is plain Delphi pascal, requiring a version that supports Tdictionary. There is no dependency on 3rd party units. The file to be parsed must have valid HTML4/5 tags. It is not necessary that the HTML is ‘correct’ in the sense that end tags may be wrongly placed or be absent altogether. The speed of processing (reading+parsing) is formidable: 15-40 msec per Mbyte or around 1 msec per 1000 HTML tags.
A collection of tools to process DFM files
JEDI code formatter better compatible with modern Delphi
Lightweight Pascal Interpreter
DelphiFmt - A fully configurable Delphi source code formatter engine for .pas, .dpr, .dpk, and .inc files. Controls indentation, spacing, line breaks, capitalisation, and alignment through a single options record. Idempotent by design. Format a string, a file, or an entire directory tree in one call. Built on ParseKit.
PAS2PHP will translate a large subset of Object Pascal to PHP, allowing you to write web applications using Lazarus/FreePascal, and then run the application on a standard HTML/PHP server. Over the last week, a lot of work has gone into PAS2PHP. Most of the major issues are resolved. There are still a number of incompatibilities which are either not fixable, or have simple workarounds. As of v0.5, you should be able to write entire PHP applications in Pascal. The key to coding for PAS2PHP is to understand the limitations of PHP. Read the example code provided, and always check the outputed PHP code to understand how this works. As a guide to what PAS2PHP can achieve... my web site is written in Pascal, and then converted to PHP. (The code is in the source package). PAS2PHP uses the Pascal Parse Tree Classes (PasTree) which comes with FreePascal, and therefore the parsing limits are defined by this library.
SQL query formatter
written with PascalABC.NET
CudaText is a cross-platform text editor, written in Lazarus. Open source project. It starts quite fast (0.5 sec with 30 plugins on CPU Intel Core i3 3Hz). It is extensible by Python add-ons (plugins, linters, code tree parsers, external tools). Syntax parser is feature-rich, based on EControl engine.
The package FCL-XML contains units that parse XML and HTML files to DOM, and can render the DOM tree to HTML, XHTML and XML.
A curated list of awesome Delphi/FreePascal/(any)Pascal frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff. Open source and freeware only!
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.
MSEide is a Rapid Application Development IDE for platform independent rich GUI applications in the Pascal language. It comes with its own GUI toolkit called MSEgui. Binaries: https://github.com/mse-org/mseide-msegui/releases
Generic algorithms and data structures for Lazarus/Free Pascal
Delphi implementation of JOSE (JSON Object Signing and Encryption) and JWT (JSON Web Token)
Tero Subtitler is an open source, cross-platform, and free subtitle editing software.
A greatly improved Dev-Cpp
Redis client for Delphi
Microsoft Windows DLL Export Browser (Enumerate Exports, COM Methods and Properties) with Advanced Search Features.
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.
Sempare Template (scripting) Engine for Delphi allows for flexible dynamic text generation. It can be used for generating email, html, reports, source code, xml, configuration, etc.
Delphi source code by Execute SARL
Delphi reference info
. Delphi These files make up a hand-written high speed parser for the Object Pascal dialect known as "Delphi". The original work was done by Martin Waldenburg in the late 1990s, and the project was abandoned sometime before 2003, when I found the code and began working on it. I have kept it updated as necessary to work with my project, called "Castalia".
A lightweight HTML/CSS rendering engine for Free Pascal (Lazarus) and Delphi (VCL & FMX).
Pupular OOP-OPF Library for Delphi (from DXE6 to latest version)
The Deepseek API wrapper for Delphi leverages Deepseek’s advanced models to deliver powerful capabilities for seamless and dynamic conversational interactions, including a model optimized for reasoning, and now also supports running local models through an LM Studio server.
This repo includes some free Delphi components compatible with various Delphi IDEs
Fast and memory-efficient JSON for Delphi
Turbo Pascal Archive
Visual tool for .dsk Spectrum/Amstrad/Einstein images
generate delphi classes from json (Json To Delphi Class Generator / JSON Data Binding Tool FMX, VCL and uniGUI)
VindexLLM is a pure Delphi, GPU-powered LLM inference engine that uses Vulkan compute shaders to run GGUF models entirely on the GPU. It performs full transformer inference without relying on Python, CUDA, or other external runtimes, requiring only vulkan-1.dll, which is typically included with modern GPU drivers.
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
A Delphi / Lazarus / C++Builder simple and small class for fast JSON parsing.
A Delphi library for creating engaging console applications
A library on Pascal, for direct use of HTML tags. Based on HTML5 tags. It can only be used to generate HTML5 Tags, there is no Parse function.
libclang for Delphi
Ultra-lightweight native AI agent framework written entirely in Object Pascal for Delphi and Free Pascal, designed for performance, portability, and extensibility.
A native JavaScript (ECMAScript 5.1) parser and interpreter written in Delphi/Object Pascal. Execute JavaScript code directly from your Delphi applications.
Generate CycloneDX SBOMs for Delphi projects — EU Cyber Resilience Act compliance in one click
A Markdown Processor Library for Delphi, to process and convert markdown files to HTML.
DataValidator foi projetado para ser uma biblioteca simples de validação de dados.
HTML Parser - very simple and fast
A simple project to test JSON libraries with Delphi and C++Builder.
A debugger for delphi in visual studio code, and also a MCP server to give claude/copilot/etc authonomous delphi debugging capabilities
CrossPascal aims to be a Delphi 7 compatible cross-platform source-to-source compiler which generates intermediate C code.
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.
Pure-Delphi audio codec stack — WAV, FLAC, Vorbis, Opus, MP3. No DLLs, no C bindings. CC0 Public Domain.
Text & translation editor for Skyrim, Fallout4 and Starfield mods
A type-safe Free Pascal framework for building powerful CLI applications with rich commands and help systems.
Implementation of basic css drawing for pascal (fpc, lazarus, delphi)
OverbyteICS. Outdated copy of SVN repository
A DFM parser and scriptable bulk editor
Directory of Delphi VCL/RTL class helpers
