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Catalog

30,060 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.

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Tower-of-Babel

Unified algorithms for different programming languages, necessary when porting code from one programming language to another.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 2
  • GPL-3.0

Language Tools

lib.UInt64Utils

Utility functions for 64bit unsigned integers. Meant mainly for compilers that do not have full native support for this type (eg. Delphi 7).

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 2
  • MPL-2.0

Other

JPPack

A collection of VCL/LCL components for Delphi/Lazarus - buttons, panels, LinkLabel, ProgressBar, ColorComboBox, ColorListBox, Timer and other

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 159

Other

QuickLib

Quick development library (AutoMapper, LinQ, IOC Dependency Injection, MemoryCache, Scheduled tasks, Json and Yml Config and Options pattern, Serializers, etc) with crossplatform support for Delphi/Firemonkey (Windows,Linux,OSX/IOS/Android) and freepascal (Windows/Linux).

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 714
  • Apache-2.0

Other

LazWebsockets

Websocket Server and Client Library written in Lazarus

  • Quiet
  • Package
  • Lazarus
  • GitHub
  • ★ 123
  • BSD-3-Clause

Networking

delphi-neon

JSON Serialization library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 364
  • MIT

Other

superobject

. Delphi FPC Parser/writer for JSON data format. This toolkit is designed to work with Delphi and FreePascal win32, win64, linux32, linux64, macOS Intel. Supports reading/writing XML as well.

  • Archived
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 337

Other

RealThinClient-SDK

RealThinClient SDK - Delphi components for building HTTP(S) applications

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 190

Networking

DelphiGrpc

DelphiGrpc is a Delphi implementation of the realtime and streaming gRPC protocol (http://grpc.io).

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 189
  • Apache-2.0

Networking

DelphiConsole

The Console class from C# ported to Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 143
  • MIT

System

SwagDoc

Create a public documentation REST API using Swagger 2.0 or Open API 3.2.1 for Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 108
  • Apache-2.0

Networking

JsonToDelphi

generate delphi classes from json (Json To Delphi Class Generator / JSON Data Binding Tool FMX, VCL and uniGUI)

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 76

Language Tools

sendemail

Function to send email for Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 68

Networking

VSoft.Messaging

Simple internal application messaging for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 64

Other

ZNet

ZNet is supported by future P2P VM, big data, cloud servers, and SAAS systems

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 64
  • BSD-3-Clause

Networking

SuperObject.Delphi

Pascal (Delphi, FPC) json parser library SuperObject

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 63
  • Unlicense

Other

JPLib

A library of general-purpose pascal units needed to compile my projects published on GitHub.

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 62

Other

d7zip

A Delphi Wrapper around 7z.dll

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 58

Files and Drives

CachedBuffers

Extremely fast data streams (Delphi6-XE10)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 54
  • MIT

Other

msgpack-delphi

MessagePack implementation for Pascal / msgpack.org[Pascal]

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 53
  • BSD-2-Clause

Other

node.pas

Asynchronous Event-driven server programming for EMB Delphi (FPC 3.3.1), powered by libuv.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 51
  • MIT

Networking

delphi-visual-studio-code-debugger

A debugger for delphi in visual studio code, and also a MCP server to give claude/copilot/etc authonomous delphi debugging capabilities

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Language Tools

ipub-refit

Simple way to consume REST services

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 48
  • MIT

Networking

AdvancedHTTPServer

The go-like http/https server for Lazarus + FPC

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 37
  • BSD-3-Clause

Networking

DzDirSeek

Delphi non-visual component to search files in directories

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 37
  • MIT

Files and Drives

duck

The Duck is a migration framework for database versioning

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 36
  • MIT

Database

VK_API

VK API Wrapper

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 35
  • GPL-3.0

Networking

FiremonkeySensorFusion

Augmented Reality w/ Delphi Firemonkey. Sensor fusion object ( accelerometer+magnetometer+GPS). returns phone attitude (Azimuth/Elevation/Roll)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 34

System Science

horse-WS

Middleware for WS in HORSE

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 6

Networking

AsyncIO

Delphi.AsyncIO library

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 31
  • Apache-2.0

Networking

CachedTexts

The fastest parsing and generation of text data (Delphi6-XE10)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 31
  • MIT

Language Tools

toml-fp

Simplify parsing and writing TOML config files in Free Pascal

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 29
  • MIT

Language Tools

smPDF

Simple, lightweight PDF writer for Delphi VCL

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 26
  • MIT

Reporting

SnowFlakeID-Delphi

Snowflake's unique identifier generation system for objects within a distributed system or database.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 25
  • MIT

Other

Base64Lib

⚡ Biblioteca de codificação e decodificação de dados em Base64.

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 23
  • MIT

Other

ExcelExport4D

Fluent Delphi library for exporting TDataSet data to Excel — COM automation or direct OpenXML .xlsx generation under the same API.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 22
  • MIT

Database

superobject

:anger: A fast Delphi JSON parser - Fork of http://code.google.com/p/superobject/

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 22
  • LGPL-3.0

Other

TDataFile

Binary data storage for Delphi similar to TIniFile

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 22
  • MIT

Files and Drives

YADF

Yet Another Delphi Formatter

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 22
  • MPL-2.0

Language Tools

besasoap

Delphi SOAP Client Component

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 20
  • Apache-2.0

Networking

Delphi_Compilers

Include files for checking compiler versions and capabilities

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 20
  • MPL-2.0

Language Tools

delphi-iot

14 IoT and industrial communication libraries for Delphi 12: MQTT, AMQP 1.0, CoAP, Modbus, STOMP, WebSocket, mDNS/DNS-SD, NMEA, InfluxDB, Prometheus, CBOR, MessagePack, JSON, Serial — 694 tests, no external dependencies beyond Indy

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 20

Networking

sempare-delphi-streams

Sempare Streams is a Delphi (object-pascal) library providing for stream type operations over various enumerable types similar to Java streams or Linq.

  • Archived
  • Library
  • Delphi
  • GitHub
  • ★ 19
  • GPL-3.0

Other

Tiger

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.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

Language Tools

tokio4delphi

High-performance async/await library for Delphi, powered by Rust's Tokio runtime.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 19

System

DelphiCSPRNG

A cross-platform Cryptographically-Secure Random Number Generator (CSPRNG) for Delphi relying on native operating systems providers.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 18

Cryptography

maxCron

maxCron: Flexible, lightweight CRON compliant scheduler written in Delphi.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 17
  • BSD-3-Clause

Date and Time