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.
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.
A fast run-time expression parser in delphi.
The Expression Language (EL) is a simple language designed to meet the needs of the presentation layer in applications.
Math expression evaluator written in Pascal using pointers.
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 unit written in Delphi XE3 for parsing mathematical expressions.
PGN parser based on regular expressions
A small demo illustrating how a string expression can be parsed in Delphi to support full text search potentially
An Expression Parser and Evaluator result in JSON object. Written in Pascal. 表达式的解析和求值是一个应用面非常广的功能。JSON格式因其简明、易于操作，使用面日渐广泛。本项目将表达式分析的结果存放在JS
Simple, but flexible expression parser for Delphi. Forked from JvExprParser.
Parser for Math Expression with easy adding of new functions and operands. Written on Delphi XE5
Delphi porting of Cron Sim(ulator), a cron expression parser
A basic math expression parser, proof of concept from back in the day...
GRcalc 1.0 — A graphical calculator written in Turbo Pascal (2002). Expression parser, math evaluator, BGI graphics renderer.
Expression evaluator for Delphi developers
A lightweight open-source unit-aware math and physics scripting engine for FreePascal and Lazarus
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.
A greatly improved Dev-Cpp
XD Pascal: A small embeddable self-hosting Pascal compiler for Windows. Supports Go-style methods and interfaces
A Delphi implementation of the Mustache templating language
Delphi reference info
Generates Delphi code from your database and lets you build typesafe SQL queries through its fluent API.
Turbo Pascal Archive
Delphi Firemonkey (FMX) Sprite Engine with Formatters, animations and etc
A native JavaScript (ECMAScript 5.1) parser and interpreter written in Delphi/Object Pascal. Execute JavaScript code directly from your Delphi applications.
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
Pospolite View aims to be a simple HTML viewer engine fully made in Free Pascal.
Fast HTML Parser for FPC and Delphi
Object Pascal Language Specification — comprehensive, compiler-implementable reference for Delphi Object Pascal
SedaiBasic Interpreter with VM
Some FPC classes and frameworks I have implemented so far
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.
A Delphi simple expression evaluator with user functions and variables
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.
MFL parser library
A sandbox-first JavaScript engine for AI agents: host-set capabilities and limits, deterministic runs, TypeScript annotations, test262 on every pull request.
Tina4Delphi - A comprehesive set of tools to make REST and application integration better
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.
Collection of useful and mostly non trivial examples that can be used to start own projects
Delphi Expression Evaluator
Simple Pascal compiler being built for a university course
HTML-driven native apps in Free Pascal — one codebase, six targets, no browser, no widget toolkit
Delphi WinMD Parser & Code Generator
Myrissa is a modern systems programming language by Jarrod Davis, combining Pascal readability with robust C ABI interoperability. Written entirely in Delphi, its self-contained compiler generates native x86_64 code for Windows and Linux, with built-in linking, managed strings, unit testing, exception handling, and low-level control.
A general utilities library for Delphi projects
Pascal Framework is a foundational library for Free Pascal, Lazarus and Delphi applications.
DRAFT Unofficial, community-driven language specification for the Delphi programming language (Object Pascal) — including lexical rules, grammar, and semantic details.
Go_VM — Delphi Go Source Virtualizer & Obfuscator
Markup, a specialized authoring language for creating semantic HTML with one consistent syntax. It replaces manual HTML coding with a streamlined, Turing-complete system that supports variables, logic, and reusable components. Delivered as a compiled DLL, it includes JSON binding, semantic analysis, and customizable rendering
Render Mapbox vector tiles (MVT/PBF) from MBTiles to a Delphi TCanvas — Mapbox GL style.json, expression engine, label placement, GDI+/Skia backends, zero runtime dependencies.
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.
Command line version of SqlFormatter.
