Open-source alternatives to Diff Match Patch

WinMerge is a visual file comparison and merge tool used to identify and synchronize differences between text files, folders, and images. It functions as a diff and patch generator, a visual folder synchronizer, and a hex binary comparator for non-text data. The tool provides specialized comparison modes for diverse content types, including side-by-side webpage rendering for HTML and resource trees, tabular data analysis for delimited files in a grid view, and visual image comparison using overlays and animations. It also supports comparing the contents of compressed archives without manual e

Fuzzywuzzy is a Python library and text processing utility designed to calculate similarity scores between strings. It functions as a text similarity scoring engine and an approximate string matching tool used to identify the closest textual matches within a list of candidate strings. The library provides a suite of tools for measuring the degree of similarity between pieces of text, accounting for typos and formatting differences. These capabilities include extracting the best match from a candidate list and performing fuzzy string matching through various scoring methods. The toolset cover

jsdiff is a JavaScript text diffing library and comparison engine used to compute differences between strings or arrays. It identifies additions and removals between blocks of text and provides a system for generating and applying formatted Unix-style patches. The toolkit functions as a customizable token differ, allowing for the comparison of arbitrary token sequences using user-defined equality and tokenization rules. This enables the creation of specialized comparison tools for non-standard text or data formats. Comparison capabilities are available at the character, word, and line levels

mini.nvim is a comprehensive library of independent modules designed to extend Neovim with a wide array of navigation, user interface, and text manipulation tools. It serves as a modular plugin collection, a UI toolkit for creating custom statuslines and notifications, and a package manager for installing and pinning external plugins from Git. The project provides a specialized fuzzy picker framework for filtering files and symbols, an LSP completion engine with interactive snippet expansion, and a dedicated plugin test framework that uses headless editor instances and remote procedure calls

Masuit.Tools is a comprehensive static utility library for .NET and ASP.NET Core development. It provides a broad collection of reusable helper methods and infrastructure components that cover common programming tasks without requiring dependency injection or instance management. The library is organized as flat utility classes, making its functionality directly accessible from anywhere in a project. The toolkit distinguishes itself through a wide range of integrated capabilities that go beyond typical utility libraries. It includes a multithreaded range-request file downloader with pause and

Mailcheck is an email domain suggestion library and validation utility designed to identify misspelled email addresses. It functions as a string similarity tool that calculates the distance between typed domains and known correct extensions to provide automated correction suggestions. The library allows for the use of custom domain suggestion lists and the implementation of custom similarity and string distance logic. These mechanisms enable the replacement of default matching thresholds and distance algorithms with user-defined functions. The tool covers domain validation and correction thr

Fuse is a JavaScript fuzzy search library and client-side search engine designed to index and query JSON data. It provides utilities for approximate string matching and ranking results by relevance, allowing applications to perform fast filtering and searching of datasets without a dedicated backend. The library distinguishes itself through a token-based search implementation that supports word-order independence and relevance weighting. It utilizes edit-distance scoring to handle typos and insertions, and employs a system of field weighting to prioritize matches in high-value data keys. The

This repository is a collection of technical knowledge and solutions focused on mobile application development, particularly for Android and iOS platforms. It covers a wide range of practical engineering challenges, including hotfix and patching techniques, database management and repair, network communication, logging, and video processing. The content is presented as shared knowledge, documenting real-world problems and their implementations. The project provides detailed guidance on applying hotfixes to running Android applications through multiple methods, such as class replacement, full

Skim is an interactive text filter and terminal selection tool written in Rust. It functions as a command line interface utility that processes input streams to isolate specific entries through real-time user queries and sorting. The tool differentiates itself through ANSI compatibility, allowing it to parse color codes and maintain text formatting during the search process. It supports multiple matching strategies, including configurable fuzzy matching algorithms and regular expression integration. The application covers a broad range of capabilities including field-specific filtering, resu

match-sorter is a JavaScript string matching and array filtering utility designed to rank and sort lists based on search string relevance. It functions as a deterministic best-match sorting library and fuzzy search engine for filtering object arrays. The tool prioritizes results using weighted match heuristics that favor exact matches, acronyms, and string containment. It employs a deterministic ranking system to ensure consistent ordering and supports diacritic-insensitive normalization to match characters regardless of accents. The library covers match criteria specification via key-path p

ctrlp.vim is a fuzzy file navigation tool for the Vim editor. It enables the location and opening of files, buffers, tags, and recently used items through approximate string matching and regular expressions. The project identifies project roots by scanning for version control markers and configuration files. It allows for the creation of new files and their required parent directories directly from the search interface, and can open multiple files simultaneously. Broad capabilities include text editor resource management and workflow automation, such as executing specific commands immediatel

Robust is an Android hotfix framework and runtime application updater designed for patching bugs in production environments. It functions as a bytecode patcher and dynamic code injection tool, allowing for the modification of application logic without requiring a full app update or device reboot. The project enables the remediation of Android defects by injecting new classes and methods into existing builds and modifying the implementations of existing methods. It utilizes a toolchain to generate binary patch files that update application behavior and introduce workarounds on the fly. The sy

This project is a comprehensive collection of common computer science algorithms and data structures implemented in Swift. It serves as an educational reference and library for studying computational complexity, algorithmic logic, and data structure engineering through practical code examples. The repository provides a wide suite of data structure implementations, including various types of linked lists, heaps, hash tables, and an extensive range of hierarchical trees such as Red-Black, B-Tree, and Splay trees. It also covers diverse sorting and searching techniques, from basic bubble sort to

CloudSaver is a multi-cloud file transfer manager and storage aggregator designed to discover remote resources and save them directly to cloud drives. It functions as a cloud file downloader and management platform that enables the movement of data between different cloud storage providers without requiring files to be downloaded to a local device first. The system uses OAuth authentication to manage secure connections to third-party cloud drives, facilitating direct server-to-server data transfers. It incorporates asynchronous streaming to move data between remote sources and destinations, p

Magit is a complete Git interface that runs inside Emacs, providing a full-featured porcelain for version control operations without leaving the editor. It renders repository state as structured, collapsible sections within Emacs buffers, and manages Git command execution through a transactional process model with automatic buffer refresh and error handling. The interface exposes all configuration through Emacs' standard customization system and uses a transient command framework for context-sensitive menu-driven Git operations. What distinguishes Magit is its granular control over every stag

This is an open-source educational website that translates and localizes MIT's Missing Semester course, teaching practical computing skills for computer science students. The curriculum covers developer tooling, shell scripting, version control, security fundamentals, and open-source collaboration, with a focus on core computing skills including data processing pipelines, workflow automation, secure remote access, shell productivity, Vim editing, and Git version control. The project distinguishes itself by teaching command-line mastery, shell scripting, and automation to boost daily developer

Dev-Cpp is a comprehensive development suite that serves as a C++ integrated development environment, a cross-platform application builder, and a visual UI designer. It provides a toolchain for writing, compiling, and debugging native C++ applications on Windows, while offering a framework to create native binaries for desktop, mobile, and IoT devices from a single codebase. The project distinguishes itself by integrating an embedded SQL database engine and a REST API development platform directly into the workflow. It includes an AI-assisted coding tool that leverages large language models t

PythonSpiderNotes is a comprehensive instructional resource and framework for building web crawlers and extracting data using the Python programming language. It provides a set of methods for parsing unstructured HTML and JSON data into structured formats for persistent storage. The project includes detailed guides and tutorials on browser automation for retrieving dynamic content, as well as a framework for data extraction. It specifically covers anti-bot bypass techniques, such as rotating proxies and spoofing headers, to avoid IP blocks and detection systems. The capability surface extend

Dedupe is a machine learning tool for entity resolution that identifies and merges duplicate records in structured datasets. It uses active learning to train a matching model from human-labeled examples, learning which field-level similarities are most important for detecting duplicates without requiring manual rule writing. The system combines fingerprint-based blocking to reduce pairwise comparisons, enabling efficient matching on large datasets, and groups scored record pairs into clusters using a configurable similarity threshold. The tool provides multiple interfaces for different workfl

This project is a curated reference library of algorithmic patterns, data structure implementations, and system design notes. It serves as a Java algorithmic problem set and a competitive programming guide, providing a collection of solutions for coding challenges from platforms like LeetCode and LintCode. The library is distinguished by its comprehensive set of Java implementations for advanced data structures and algorithmic strategies. It includes detailed references for solving complex problems with accompanying time and space complexity analysis. The project covers a broad surface of co

This project is a curated collection of command reference guides and workflow documentation for Git. It provides a structured set of shell commands and practical techniques for managing version control and repository history. The guide focuses on specific high-level operational areas, including repository debugging via binary search and log inspection, the manipulation of commit history through squashing and rewording, and the synchronization of remote repositories. It also covers techniques for auditing project evolution and managing remote references. Additional capabilities cover general

This project is a collection of programming language references and syntax cheat sheets designed for rapid developer onboarding. It serves as a library of code-based documentation that uses valid source code files to provide whirlwind tours of various language specifications. The project focuses on programming language learning by providing concise, commented code examples that explain core features and syntax in place. This approach enables developers to quickly grasp language-specific patterns, data types, and execution flow through a consistent reference format. The content covers a broad

list.js is a JavaScript search and sort library used to add real-time filtering, sorting, and pagination to HTML lists and tables without backend dependencies. It functions as a DOM data indexer and template-driven HTML renderer, allowing developers to manage how data is displayed and discovered on the client side. The library distinguishes itself through a fuzzy string matching engine that handles approximate matches and typos, and a DOM data indexer that extracts values directly from HTML data attributes to build a searchable internal index. It uses a template-driven rendering system to gen

CPM.cmake is a dependency manager and package resolver for C and C++ projects that integrates directly into the CMake build system. It automates the process of fetching, configuring, and managing external libraries by resolving dependencies through system-wide package managers or by downloading source code from remote repositories. The system ensures reproducible builds by locking transitive dependency versions and verifying the authenticity of downloaded source archives using cryptographic hash checksums. It allows for development flexibility through local filesystem overrides, which redirec

git-flight-rules is a collection of curated guidelines, operational resources, and a command reference for managing version control with Git. It provides a set of procedure-based rules and best practices designed to organize code history, branches, and collaborative development. The project distinguishes itself by providing structured workflows for complex history manipulation and data recovery. This includes specific guidance on rewriting commit history to remove sensitive data, using the reference log to recover lost work, and employing binary searches to isolate regressions. The resource

Saws is an interactive shell wrapper and resource manager for the AWS CLI. It provides a command-line environment designed to enhance the execution of AWS commands through predictive text, resource suggestions, and improved navigation. The tool implements fuzzy searching and case-insensitive autocomplete to accelerate the discovery and selection of cloud resources. It reduces manual entry via a system of command shortcuts and aliases that map short strings to complex commands. The interface includes local caching of resource data to minimize API requests, persistent command history, and the

Sensitive-lexicon is a sensitive word detection service and content moderation tool designed to identify prohibited text. It utilizes a curated lexicon of thousands of categorized terms and a fuzzy matching text scanner to detect restricted words and phrases. The project features specialized filters for Chinese language content across political, social, and adult domains. It supports approximate string matching to identify terms that use noise characters or whitespace to evade standard keyword filters. The system includes a network interface for hosting the detection service, allowing for re