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.
delphi math parser
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
Parser of mathematical formulas and functions (Lazarus/FPC project)
A delphi unit written in Delphi XE3 for parsing mathematical expressions.
Collection of useful and mostly non trivial examples that can be used to start own projects
Parser for Math Expression with easy adding of new functions and operands. Written on Delphi XE5
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!
Fundamentals 5 Code Library for FreePascal and Delphi
Delphi reference info
A lightweight HTML/CSS rendering engine for Free Pascal (Lazarus) and Delphi (VCL & FMX).
Turbo Pascal Archive
Delphi Firemonkey (FMX) Sprite Engine with Formatters, animations and etc
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 native JavaScript (ECMAScript 5.1) parser and interpreter written in Delphi/Object Pascal. Execute JavaScript code directly from your Delphi applications.
A Markdown Processor Library for Delphi, to process and convert markdown files to HTML.
SedaiBasic Interpreter with VM
A Pine Script interpreter written in Delphi and Free Pascal, designed to execute scripts and return results as JSON.
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
Helper library for creating Floria Toolkit
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.
This project will accompany Part 3 of Writing an Interpreter in Object Pascal.
Sedai Audio Foundation - Professional audio synthesis library in Free Pascal. 5 Synthesis Engines: Classic/Subtractive, FM (DX7-style), Wavetable, Additive, SID Evo.
Lightweight Pascal Interpreter
An elegant calculator for Android
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.
Extract and analyse 1D profiles from 2D arrays and images. BeamScheme V0.5 will be retired once V1.0 is stable.
compiler compiler coco/r pascal version
Myra is a minimal systems programming language inspired by Oberon and Pascal that compiles into C++23 using the Zig toolchain. Its core philosophy emphasizes a clean, unambiguous syntax while providing seamless interop, allowing developers to intermix raw C++ code directly within Myra source files. Pascal. Refined.
VeloxUI — High-velocity, zero-dependency Object Pascal (Delphi VCL & Lazarus/Free Pascal LCL) desktop MVVM & Windows 11 Fluent UI micro-framework: DWM Mica, undocumented uxtheme dark scrollbars, GDI+ vector cards, High-DPI control fixers, flicker-free generic OwnerData virtual grids, and NT Kernel helpers.
Virtuoso is a single-unit, zero-dependency Delphi library that provides unified, thread-safe, generic access to memory-mapped buffers and files.
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.
CPaskal Programming Language
Json Library for Delphi 6+ Originally from Leonid Koninin
A modern documentation generator for Free Pascal projects.
Simple Expression Evaluator
Waskal is a Pascal/Oberon-inspired language that compiles to wasm64 and packages code, assets, and runtime support into a single self-contained HTML file. It uses JavaScript to bridge WebAssembly with browser graphics, audio, and input, delivering portable, dependency-free apps and games with a simple double-click-and-run experience.
ffff code
a non visual delphi component that can evaluate mathematical functions defined by the user on runtime.
DOS Game Engine with VGA and AdLib/SoundBlaster support. Supported formats: PCX, VOC, HSC, TMX, XML
Json Extended framework V3 for Delphi (VCL/FMX)
A profile and image analysis tool for medical physics. This is virtually a complete rewrite of BeamScheme V0.54.
Notepad++ plugin that plots the formula under your cursor
医用画像フォーマット「DICOM:Digital Imaging and COmmunication in Medicine」を扱うためのライブラリ。
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.
Charts and Graphs In the Online Package Manager
A fast run-time expression parser in delphi.
Lightweight Pascal toolkit
Polish notation implementation in Pascal
PascalAI — AI-native Pascal language compiler (Lape VM backend)
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.
Thalia is an Chat system with plugins for different plattforms (irc,msn...)
