Open-source alternatives to HDiffPatch

Apkupdater is an Android application manager designed to automate the discovery, download, and installation of software updates from multiple external repositories. It functions as a centralized utility that monitors installed applications and notifies users when newer versions become available, facilitating the maintenance of software sourced from diverse, independent platforms. The tool distinguishes itself by aggregating update information from various third-party app stores and community-driven repositories into a single interface. It employs multi-source web scraping and version normaliz

gdrive is a command line interface client for managing files, folders, and permissions within Google Drive. It functions as a backup utility and synchronization tool, allowing users to interact with their cloud storage through a terminal instead of a web browser. The project supports server-to-server integration by using service accounts and JSON credential files. This enables non-interactive identity verification and session establishment without requiring interactive user login prompts. The tool covers bidirectional and one-way synchronization between local directories and remote storage,

Remotely Save is a cloud storage synchronization tool and backup manager designed to keep local files and application data consistent across desktop and mobile devices. It functions as a cross-platform synchronizer that mirrors local data to remote servers using S3 and other cloud protocols. The project focuses on privacy and security through end-to-end encryption, which secures files with a user-defined password before they are uploaded to remote cloud services. It ensures data remains private on third-party servers by applying symmetric client-side encryption. The system includes capabilit

Open-Shell-Menu is a Windows shell extension and UI restorer designed to replace modern system interfaces with traditional styles. It functions as a start menu replacement and a customization tool for the Windows file manager and other system applications. The project restores legacy hierarchical navigation to the start menu and reinstates classic visual elements, such as traditional title bars and copy dialogs. It specifically targets the restoration of legacy toolbars and status bars within the file manager and introduces traditional interface elements to web browser windows.

dirsearch is a command-line security tool and web path scanner used for discovering hidden directories and files on web servers. It functions as a recursive directory fuzzer and brute-force utility that identifies undocumented paths and sensitive files using wordlists and HTTP status codes. The tool distinguishes itself through template-driven path generation and an automated HTTP response filter that uses status codes, content length, and regex patterns to isolate valid targets. It supports recursive directory crawling to map complex web structures and provides state-persistence serializatio

This project is the official documentation site and communication standard portal for the MQTT messaging protocol. It serves as a central hub for technical specifications and implementation guidelines designed for lightweight messaging in internet-of-things environments. The site is implemented as a static website, utilizing static site generation and markdown-based content authoring to distribute protocol specifications and technical standards. The resources cover a broad range of industrial messaging and connectivity capabilities, including publish-subscribe routing, quality-of-service del

Neo-tree is an extensible UI component for Neovim that functions as a file explorer, project resource manager, and git status browser. It provides a tree-based interface for navigating filesystems, managing open buffers, and organizing document symbols within a side panel. The project is designed as a customizable framework that allows for the integration of external data sources and the implementation of user-defined event handlers. It supports custom tree visuals and component rendering, enabling the display of metadata, custom icons, and third-party plugin data within the tree view. Capab

Luma3DS is a custom firmware for the Nintendo 3DS that removes factory restrictions to enable the execution of unsigned homebrew and game modifications. It functions as a kernel-level system extension that hooks system calls to bypass hardware limitations and introduce new operating system capabilities. The project serves as a homebrew payload loader, using boot-time mechanisms to launch third-party software and custom firmware versions. It also provides a game modding framework capable of patching executable code and intercepting file requests to load custom assets and modified data. The en

lsd is a directory listing tool and directory tree visualizer designed as a modern replacement for the standard Unix ls command. It provides a command line interface for listing directory contents and visualizing hierarchical folder structures with enhanced visual formatting. The utility distinguishes itself through customizable themes, allowing users to modify the output appearance by mapping specific colors and icons to file names, types, or extensions. It uses extension-based icon mapping to provide visual file type identification via specific glyphs. The tool covers functional domains in

This project is a learning guide and collection of study notes designed to teach Node.js backend development. It provides a comprehensive core API reference and practical demonstrations for implementing server-side logic, network programming, and system APIs. The guide specifically covers advanced technical domains including process management for scaling applications via clusters and child processes, as well as network programming for building TCP, UDP, and HTTP services. It also includes detailed instructional material on security implementation, focusing on cryptographic hashing and encryp

pwndbg is a GDB plugin and binary analysis framework designed for reverse engineering, exploit development, and low-level program analysis. It extends the core functionality of the debugger to provide advanced memory inspection and automation tools. The project distinguishes itself with specialized capabilities for heap analysis across glibc, jemalloc, and musl, as well as a comprehensive kernel debugging toolkit for inspecting Linux kernel tasks and slab allocators. It includes an integrated ROP gadget searcher for constructing exploit chains and an LLM-powered debugging assistant that provi

pyWhat is a Python-based data extraction tool designed to scan files and text for sensitive identifiers, credentials, and network artifacts using regular expressions. It functions as a pattern matching engine and PII scanner capable of identifying personal identifiers and sensitive data patterns across directories and binary files. The project specializes in the identification of unknown data formats through file signatures and the extraction of high-value identifiers, such as URLs, IP addresses, and phone numbers, from network capture files. It utilizes a rarity-based filtering system and sp

LiteOS is a lightweight real-time operating system kernel designed for constrained devices with limited memory and processing power. It provides a foundation for embedded IoT development, focusing on stable and predictable system resource management. The system implements a preemptive task scheduler and interrupt-driven resource management to ensure real-time responsiveness. It incorporates a tickless idle mechanism and optimized sleep-wake cycles to reduce power consumption in battery-powered hardware. The kernel includes capabilities for task synchronization via semaphores and static memor

Electrobun is a desktop application framework and webview-based GUI toolkit used for building cross-platform desktop apps. It provides a TypeScript-based runtime and a native system webview to create interfaces that integrate embedded browser views with host-process logic. The project features a native GPU integration layer with direct FFI bindings, allowing for high-performance GPU surfaces and compute workloads to run within a desktop application. It also includes an inter-process communication bridge using a typed RPC system to exchange data and execute functions between the native backend

direnv is a shell environment manager and directory-based environment loader that automatically loads and unloads environment variables when switching between directories. It functions as a shell hook automation tool, injecting logic into the shell configuration to trigger environment updates based on the current project context. The project acts as a development environment isolator by localizing shell configurations, which prevents dependency conflicts and removes project-specific exports from global profile files. It includes specialized integration for Nix, allowing the loading of environ

gdu is a command line disk usage analyzer and interactive disk profiler used to scan directories and visualize space consumption across file systems. It functions as a file system management tool that allows for the identification and removal of large files and folders to free up storage. The tool features a cursor-based interface for navigating directory structures and archives. It provides a storage cleanup workflow that enables the deletion of selected items directly from the analysis view, utilizing parallel execution to reduce I/O wait times. The application supports recursive directory

Dust is a command line disk usage analyzer written in Rust. It functions as a disk space visualization tool and recursive directory size scanner used to identify large files and directories through a formatted list of disk consumption across a filesystem. The tool differentiates itself by providing a recursive tree view to visualize space distribution and the ability to output directory and file size data in machine-readable formats for external processing and analysis. Its broader capabilities include filesystem auditing and storage capacity management. This is achieved through file and dir

colorls is a Ruby-based terminal directory visualizer that displays file system contents using colors, Font Awesome icons, and Git status indicators. It functions as a command line interface for rendering directory contents and nested file system hierarchies in both list and tree formats. The project features a customizable theme engine that allows users to override default colors and unicode icons via external configuration files. It integrates with version control to append the status of files and folders directly within the terminal listing. The tool provides capabilities for directory hi

node-fs-extra is a Node.js file system extension that provides a set of additional methods to simplify common file and directory operations. It functions as a recursive directory manager, a JSON file processor, and a file asset manipulator, extending the standard library to provide high-level utilities for managing assets on disk. The project distinguishes itself through recursive capabilities, such as duplicating or removing nested folder structures and ensuring that all missing parent directories are automatically generated when creating files or symbolic links. It also integrates a JSON se

Miasm is a Python reverse engineering framework designed for binary analysis, disassembly, and modification. It functions as a binary analysis framework that lifts machine code into an intermediate representation to enable platform-independent security research. The system operates as a binary emulation engine and modification toolkit, allowing for the execution of binary code in a virtual environment to track state changes without native hardware. It provides tools for binary patching to update and modify raw binary files across multiple CPU architectures and executable formats. The framewo

WAuxiliary_Public is a dynamic code instrumentation framework and application plugin framework designed to intercept and alter the execution flow of compiled applications. It functions as a process injection toolkit and software reverse engineering tool, enabling the injection of custom logic into active application memory spaces to extend functionality without requiring original source code. The framework specifically provides capabilities for extending the WeChat desktop client. It achieves this through runtime process injection and software reverse engineering to modify internal operations

This project is a collection of utilities designed for the localization and modification of a multi-platform SSH client. It serves as a cross-platform application translator and premium unlocker, providing the means to translate the software interface into Chinese and bypass authentication and trial restrictions. The toolset implements binary patching and asset replacement to enable offline application access by skipping mandatory login processes. It specifically modifies internal application flags to unlock premium functionality across Windows, macOS, Linux, and Android platforms. The proje

This project is an Android file manager and cloud synchronization client designed to browse, manage, and organize documents and folders stored on a remote server. It functions as a WebDAV cloud storage client that mirrors folders between a mobile device and a personal cloud storage server. The application provides a mobile interface for remote file synchronization and distribution, allowing users to share files and folders with others. It ensures secure mobile data access by utilizing passcodes and biometric authentication to prevent unauthorized entry. The client integrates WebDAV and REST-

node-glob is a Node.js library for finding and matching files and directories using glob patterns. It functions as a filesystem traversal tool and path resolution library, enabling the identification of entries within directory trees based on specific search criteria. The project features a virtual filesystem interface, allowing native filesystem methods to be replaced with custom objects. This enables pattern matching against mocked data or non-native storage systems. The toolkit covers a broad range of filesystem operations, including recursive directory traversal, path normalization acros

rimraf is a Node.js recursive file deletion tool and cross-platform filesystem utility. It provides both a programmatic library and a command-line interface for removing files and directories and all of their contained contents across different operating systems. The utility supports glob-based file deletion, allowing the removal of items that match specific wildcard patterns rather than just literal paths. It also includes the ability to abort deletion processes mid-execution and apply custom predicate-based filtering to exclude specific files or folders. The project covers broad filesystem

h5ai is a web-based file navigator and server-side indexer that replaces default server index pages with a visual interface for browsing and downloading files over HTTP. It functions as a directory listing browser that transforms plain file paths into a navigable explorer for hosted files. The project is compatible with Apache, Nginx, and lighttpd web servers, providing a way to manage static assets and share files and folders through a browser-based interface instead of a command line. It utilizes PHP-based server indexing and recursive directory traversal to scan server directories and rea

Komodo is a self-hosted deployment manager and agentless software distributor designed to build application binaries and distribute them across a fleet of remote servers. It functions as a remote deployment orchestrator that manages the build and release process from a centralized control point. The system distinguishes itself by using a programmatic deployment pipeline, employing script logic rather than static configuration files to coordinate build and distribution sequences. It utilizes SSH for remote execution and binary synchronization, allowing the controller to push updates to target