30,059 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.
Coco/R is a compiler generator, which takes an attributed grammar of a source language and generates a scanner and a parser for this language. The scanner works as a deterministic finite automaton. The parser uses recursive descent. LL(1) conflicts can be resolved by a multi-symbol lookahead or by semantic checks. Thus the class of accepted grammars is LL(k) for an arbitrary k.
Strict LL(1) Recursive Descent Parser Generator for Turbo Pascal / FreePascal
Delphi WinMD Parser & Code Generator
NitroPascal is a full-featured Object Pascal compiler built entirely on top of Parse() - the compiler construction toolkit. It exists to prove a point: a complete, production-quality language can be built with Parse() without touching a parser generator, a lexer generator, or a custom pipeline.
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.
Parser generator toolset for Delphi (Yacc & Lex)
Pascal Parser Generator
Chimera is an Open Source (MIT License) library for Delphi which provides a fast and cross platform JSON generator/parser
The Delphi-OpenAPI library is an OpenAPI 3.0 document generator and parser for Delphi
Automatic generation of documentation on Delphi projects from source code. Distinctive features are exact parsing gathering lots of information and a division of the parser and configurable generators (HTML, Win- & HTML-Help, PDF, LaTeX, XMI export)
Coco/R parser generator for Delphi
P2Ada is a Pascal to Ada translator. Recognizes particularities of several Pascal dialects: Turbo/Borland/Delphi (mostly), CodeWarrior, ISO, ISO Extended (a bit). Includes a full ayacc / aflex parser & lexer for Ada 95+ with sources. Mirror: https://github.com/zertovitch/pascal-to-ada
. Delphi Open Source MIT License library for Delphi XE2 which provides a fast and cross platform JSON generator/parser serializer/deserializer under a license that doesn't suck.
Dev-PHP is a well-featured IDE for PHP. Fast and powerful, it is easy to use and has a lot of cool features : class browser, scripts preview, integration with PHP parsers, PHP-GTK library, and Xdebug of course. Dev-PHP-usb slips even into your pocket.
Code to process human readable input is often highly stylized and repetitive. This project extracts the common elements found in such code and makes them available in a concise form as C tables and subroutines.
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.
Generic algorithms and data structures for Lazarus/Free Pascal
Fundamentals 5 Code Library for FreePascal and Delphi
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.
A collection of my open sourced Delphi units
Delphi reference info
Pupular OOP-OPF Library for Delphi (from DXE6 to latest version)
generate delphi classes from json (Json To Delphi Class Generator / JSON Data Binding Tool FMX, VCL and uniGUI)
Delphi ProtoBuf files generator
Delphi HTTPS server IOCP and Schannel
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.
C to Pascal source code converter
NitroPascal is a new data/object oriented programming (DOOP) language based on Pascal / Delphi. In development is: - compiler (npc), - IDE NitroEDitor (NED).
Delphi In-memory databases and miscellaneous projects.
A node.js tool to convert TypeScript definition files to DWScript based Object Pascal headers
Sedai Audio Foundation - Professional audio synthesis library in Free Pascal. 5 Synthesis Engines: Classic/Subtractive, FM (DX7-style), Wavetable, Additive, SID Evo.
Mystic BBS 1.11IRC — GPLv3 community fork. RIPscrip v1.54 (42/42 commands, pixel-perfect). BINK, FidoNet AreaFix/FileFix/Tic. ICE colors. Built-in archivers + MP3/MP4 metadata (MARC/MediaTag). DOS i8086 with Watt-32. RIPView + Free Vision TUI. Builds with FPC 2.6.4irc.
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
The sleek new way to load Win64 DLLs straight from memory — no disk, no traces, no limits.
A faithful port of SQLite 3.53.0 (D. Richard Hipp et al.) from C to Free Pascal (FPC 3.2.2+) targeting x86-64 Linux.
Z80 Virtual Machine
A general utilities library for Delphi projects
Gui library for lua
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.
TPLY (Turbo Pascal Lex and Yacc), extracted from the Free Pascal source tree at freepascal/utils/tply/
compiler compiler coco/r pascal version
nc-amp - a native Free Pascal/Lazarus music player for Windows and macOS with a classic Winamp-style look. 基于 Free Pascal/Lazarus 的 Windows / macOS 原生开源音乐播放器，经典 Winamp 风格界面，支持 MP3、FLAC、APE（含 CUE）、WAV、Ogg、Opus、M4A 等格式，拖入即随机循环播放。
Minimal interface for Pascal with static and dynamic linkage
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
A small command line utility which allows you to generate Delphi package files (DPK) based on the given template file.
LangVM is a Turing-complete language workbench for rapidly building custom programming languages. Using `.lvm` scripts, developers define lexing, Pratt parsing, semantics, MIR, and code generation without recompiling. It can run standalone or embedded in Delphi, enabling fast iteration and native, cross-platform language development.
XA80 Multi-Platform Cross Assembler for x80 processors (8080, 8085, Z80, Z180)
mORMot2-based AI/LLM extension for Free Pascal and Delphi: MCP server, LLM clients, embeddings, vector stores, RAG
NdYaccLexTool, uses https://github.com/RomanYankovsky/ndyacclex
Oregon Software's very old software technology.
A set of tools for parsing and studying Japanese
Json Extended framework V3 for Delphi (VCL/FMX)
Rework of Ess-Model
object pascal AST parser
