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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.

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Jar-Exporter

Eclipse Jar Archive Utility

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1

Other

JarBuilder

Jar Builder (Beta version) it's compile java files into classes then create Jar file from them

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 3
  • Apache-2.0

Language Tools

Gradle-for-Delphi

Download java library (jar/aar) dependencies to your Delphi project from repositories (Maven/jitpack etc.), extract and create new jar, create JNI pas file, add to project

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 36

Lazarus IDE plugins Language Tools

cooper.jar

The RTL for RemObjects Elements Java (Cooper)

  • Active
  • Library
  • GitHub
  • ★ 3
  • BSD-2-Clause

Other

PeaZip

Free Zip / Unzip software and Rar file extractor. Cross-platform file and archive manager. Features volume spanning, compression, authenticated encryption. Supports 7Z, 7-Zip sfx, ACE, ARJ, Brotli, BZ2, CAB, CHM, CPIO, DEB, GZ, ISO, JAR, LHA/LZH, NSIS, OOo, PAQ/LPAQ, PEA, QUAD, RAR, RPM, split, TAR, Z, ZIP, ZIPX, Zstandard.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 8,077
  • LGPL-3.0

Files and Drives

5.0 from 1 member

CryptoLib

Set of units for cryptography, ciphers, security, random numbers. Also contains BigInteger class.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 266
  • MIT License

Cryptography In the Online Package Manager

5.0 from 1 member

HashLib4Pascal

Hashing for Modern Object Pascal (mirror)

  • Active
  • Package
  • Lazarus and Delphi
  • Codeberg

Cryptography

5.0 from 1 member

Delphi-Crash-Reporter

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.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 9
  • BSD-2-Clause

System

2.0 from 1 member

lockbox2

A version of TurboPower LockBox2, that is aimed at being compatible with Delphi, FPC and Lazarus 32/64 bit

  • Quiet
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 27

Cryptography

JID

Jar Import for Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 29
  • MIT

Language Tools

Myrissa

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.

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 15

Language Tools

PaskalCPP

PaskalCPP is a systems language by Jarrod Davis: Pascal/Oberon-style syntax that transpiles to C++23 and builds with a bundled Zig/Clang toolchain. Mix PaskalCPP and C++ in one file, no bindings. Includes a Delphi-built compiler and language server, an Electron/Monaco editor, and diagnostics mapped to your source. Native Windows and Linux binaries.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 12
  • MPL-2.0

Language Tools

rxlib

Unofficial version Rx library for Delphi 2005/2006/2007/2009/2010/XE/XE2/XE3/XE4/XE5/XE6/XE7/XE8/Seattle/Berlin/Tokyo/Rio © 2018 Jaro Benes (from http://micrel.cz/RxLib/dfiles.htm)

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 5

Other

MemSpeedTest

This is a just a test project that can be used to stress test and benchmark different memory managers.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 4
  • BSD-2-Clause

System

pdv

Test Repository for pdv

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 2

Applications

coldwar

Simple game for VIC-20, made as a learning project. Work-in-progress.

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1
  • MIT

Games and Game Engines

FloodFill

Mały szkolny programik prezentujący algorytm wypełniania kolorem zamkniętych obszarów.

  • Quiet
  • Other
  • Delphi
  • GitHub
  • ★ 1

Learning and Examples

Wielosciany

Aplikacja demonstrująca kilka brył.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1

Graphics

FliPS

FliPS is a Flight Protocol Software (flight logbook regarding JAR-FCL) for Windows. FliPS is based on (and therefore 100% compatible with) Version 1.09 Alpha3 of the project "FluPP".

  • Quiet
  • Application
  • SourceForge
  • GNU General Public License version 2.0 (GPLv2)

Applications

Hjartmott

Program för att visa petienflöden för hjärtmottagningen

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 1

Applications

awesome-pascal

A curated list of awesome Delphi/FreePascal/(any)Pascal frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff. Open source and freeware only!

  • Active
  • Other
  • Lazarus and Delphi
  • GitHub
  • ★ 2,096
  • CC0-1.0

Learning and Examples

Alcinoe

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.

  • Active
  • Package
  • Delphi
  • GitHub
  • ★ 1,134
  • Apache-2.0

Other

Kastri

Cross-platform library for Delphi

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 603
  • MIT

System

Chet

C Header Translator for Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 227
  • BSD-2-Clause

Language Tools

ezthreads

simple to use threading library

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 86

System

Codex

Codex is an add-in for RAD Studio

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 82
  • MIT

Lazarus IDE plugins

QRCodeGenLib4Pascal

Generates QR Codes from text strings and byte arrays.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 70

Graphics

SimpleBaseLib4Pascal

Object Pascal library for encoding/decoding Base16, Base32, Base58, Base64, Base85.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 67
  • MIT

Other

zAnalysis

zAnalysis是基于Pascal语言编写的大型统计学开源库

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 63
  • GPL-3.0

Science

IntXLib4Pascal

Arbitrary Big Integer Library for Pascal

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 56
  • MIT

Other

BaseNcodingPascal

Library for encoding of binary data into strings using base32, base85, base128 and other algorithms for FPC and Delphi.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 52
  • MIT

Other

Tracetool

Tracetool viewer, client Api for Dotnet, Java, Javasvript, C++ , Python, Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 45

Language Tools

coinbase-pro

coinbase pro client library (formerly GDAX)

  • Quiet
  • Library
  • Lazarus
  • GitHub
  • ★ 8
  • MIT

Networking

EmailValidationPascal

Simple Class for Validating Email Address Syntax in Pascal/Delphi

  • Quiet
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 39
  • MIT

Networking

NumCPULib4Pascal

Get the number of CPUs in Pascal

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 37
  • MIT

System

Taller-de-Programacion

🎓 Apuntes, teorías, practicas, parciales, finales y toda la data que use para aprobar la materia. Aca se utilizo Pascal, R-Info y Java

  • Active
  • Other
  • GitHub
  • ★ 33

Learning and Examples

TLSLib

TlsLib4Pascal is a fully managed, from-scratch TLS 1.2 + TLS 1.3 stack for modern Object Pascal (Delphi and FreePascal), released under the permissive MIT License.

  • Active
  • Package
  • Lazarus and Delphi
  • GitHub
  • ★ 32
  • MIT License

Cryptography Networking In the Online Package Manager

ByteSizeLibPascal

TByteSize is a utility record that makes byte size representation in code easier by removing ambiguity of the value being represented.

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

Other

SmazDelphi

Small strings compression library for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 26
  • MIT

Files and Drives