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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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System.ByteStrings

Unofficial ByteStrings Patch To Enable AnsiString Support In Delphi Next Generation

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 13
  • MPL-2.0

Other

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

ascii85

Ascii85, also called Base85, is a form of binary-to-text encoding developed by Paul E. Rutter for the “btoa” utility. By using five ASCII characters to represent four bytes of binary data (making the encoded size ¹⁄₄ larger than the original, assuming eight bits per ASCII character), it is more efficient than uuencode or Base64, which use four characters to represent three bytes of data (¹⁄₃ increase, assuming eight bits per ASCII character).

  • Library
  • Lazarus

Other

LazMD

A small Markdown viewer and editor for Linux, Windows and macOS

  • Active
  • Application
  • Lazarus
  • GitHub
  • 0BSD

Edit and Memos

3.0 from 1 member

DefenderCheck

Identifies the bytes that Microsoft Defender flags as a threat. Delphi Version

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 11

Security

chsdet

chsdet is a Delphi port of the Mozilla-based charset detector, updated for modern Delphi versions. It detects text encodings from raw bytes, streams, or files and returns a compact result record with the detected charset name, Windows code page, language hint, confidence, and BOM information.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 10
  • LGPL-2.1

Other

fp-humanize

A Lazarus package to humanize some values like Bytes, Numbers, Ordinals and Time

  • Active
  • Package
  • Lazarus
  • GitHub
  • ★ 9
  • MIT

Other

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

Mainframe-Allocation_Calculator

Ferramenta para automatizar cálculos de alocação utilizados em ambientes Mainframe, eliminando a necessidade de cálculos manuais envolvendo Tracks, Cylinders, Bytes, Block Size e comandos SPACE utilizados em JCL.

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • GPL-3.0

Applications

patcher

A byte nullifier that scans pattern from input and searches it to replace all the bytes with $00

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 2

Files and Drives

Renegade.Random

Random functions using the current os's built in methods.

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

Other

XOR-Keys-Generator

A simple generator of bytes lists or arrays in different programming languages.

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • AGPL-3.0

Cryptography

DFHumanize

Make strings, dates, numbers, bytes and lists **human-readable** in Delphi

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 1
  • MIT

Other

Strip-0x00

Strip-0x00 is a small tool licensed under the GPL v2 which does remove appended and/or leading 0x00 bytes from a binary file for e.g. a ROM dump.

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1

Files and Drives

UARTBootloaderGUI

Flashing tool for 1024-bytes AVR bootloader

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 1
  • Unlicense

System

XOR-Keys-Generator

A simple generator of bytes lists or arrays in different programming languages.

  • Active
  • Application
  • Delphi
  • Codeberg

Cryptography

Swap-Keys-Generator

A simple generator of reversible bytes lists or arrays in different programming languages for swapping from a byte value to an other.

  • Archived
  • Application
  • Delphi
  • GitHub
  • ★ 2
  • AGPL-3.0

Cryptography

DIUcl

. Delphi DIUcl is a lossless compression library with extremely fast and small 200 bytes only! ASM decompressor. Compression times and ratios are similar to those of deflate/zip and bzip2. Delphi port of the popular UCL Compression Library, which is also used by the popular and well known UPX Ultimate Packer for eXecutables.

  • Library
  • Delphi

Files and Drives

EpikTimer

EpikTimer is a programmer's stopwatch that is capable of measuring very short events with traceably high precision over long periods of time. It's simple to use, consumes virtually no CPU and requires only 25 bytes of ram to implement a timer instance. The component provides a single internal timer... but unlimited numbers can be declared externally and linked to a single EpikTimer component on the form.

  • Library
  • Lazarus

Date and Time

Swap-Keys-Generator

A simple generator of reversible bytes lists or arrays in different programming languages for swapping from a byte value to an other.

  • Active
  • Application
  • Delphi
  • Codeberg

Cryptography

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

pasta80

Turbo Pascal 3.0-compatible compiler that generates machine code for classic and modern Z80 machines (currently CP/M, Sinclair ZX Spectrum 48K/128K/Next, and Agon Light/Console8).

  • Active
  • Application
  • GitHub
  • ★ 207

Language Tools

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

FastMM5

FastMM is a fast replacement memory manager for Embarcadero Delphi applications that scales well across multiple threads and CPU cores, is not prone to memory fragmentation, and supports shared memory without the use of external .DLL files.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 345

System

cheatengine-library

Cheat Engine Library is based on CheatEngine a debugger and coding environment particularly aimed at games, but can also be used for other purposes like debugging applications and used in schools for teaching how computers work

  • Archived
  • Library
  • Lazarus
  • GitHub
  • ★ 293

System

DLest

Microsoft Windows DLL Export Browser (Enumerate Exports, COM Methods and Properties) with Advanced Search Features.

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 268
  • Apache-2.0

System

tsmbios

Library to access the SMBIOS using Object Pascal (Delphi, FPC).

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 219
  • MPL-2.0

System

MakerAi

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.

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 216
  • MIT

Other

mcx

Monte Carlo eXtreme (MCX) - Physically accurate and validated GPU ray-tracer

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 197

Science

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

hxd-plugin-framework

Plugin framework for HxD's data inspector

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 187
  • MPL-2.0

Other

DelphiHookUtils

Delphi Hooking Library by Lsuper

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 164
  • MPL-2.0

System

DelphiZeroMQ

Delphi implementation of ZeroMQ Majordomo protocol and CZMQ high level binding

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 133

Networking Bindings

P65Pas

CPU 6502 Pascal Compiler/IDE/Debugger

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 132
  • GPL-3.0

Language Tools

GrijjyCloudLogger

GrijjyCloudLogger, remote logging for Windows, iOS, Android, macOS and Linux

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 116

Networking

ramdisk

Replacement (GUI + windows service) for ImDisk Toolkit - by using Arsenal Image Mounter as a driver for RAM-disks.

  • Active
  • Application
  • Delphi
  • GitHub
  • ★ 116
  • MIT

System Files and Drives

InstantObjects

Pupular OOP-OPF Library for Delphi (from DXE6 to latest version)

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 107
  • MPL-2.0

Database

scalemm

Fast scaling memory manager for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 107

System

golangwin7patch

Binary patcher for Go programs on Windows 7 / Server 2008

  • Quiet
  • Application
  • Delphi
  • GitHub
  • ★ 104

System

BrainMM

Extremely fast memory manager for Delphi

  • Quiet
  • Library
  • Delphi
  • GitHub
  • ★ 102
  • MIT

System

DelphiComponents

This repo includes some free Delphi components compatible with various Delphi IDEs

  • Quiet
  • Package
  • Delphi
  • GitHub
  • ★ 96
  • Apache-2.0

Other

PicPas

Compilador en Pascal para microcontroladores PIC / Pascal compiler for PIC microcontrollers

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 94
  • GPL-2.0

Language Tools

rnl

RNL - Realtime Network Library - The opensource reliable UDP network library

  • Active
  • Library
  • Lazarus and Delphi
  • GitHub
  • ★ 90
  • Zlib

Networking

Hex

Hex editor designed for analyzing binary files.

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 80
  • MIT

Edit and Memos

newac

New Audio Components (NewAC) are designed to help your Delphi programs perform different sound processing tasks.

  • Active
  • Library
  • Delphi
  • GitHub
  • ★ 71

Multimedia

PasClaw

Ultra-lightweight native AI agent framework written entirely in Object Pascal for Delphi and Free Pascal, designed for performance, portability, and extensibility.

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

Science