Open-source alternatives to Libphonenumber

PhoneNumberKit is a Swift framework for parsing, formatting, and validating international phone numbers according to global numbering standards. It provides a system of lookup tables, structural parsers, and validation tools to handle the complexities of international telephone numbering. The library converts raw strings into structured objects containing country codes and national numbers. It translates international dialing codes into full country names and verifies whether phone number strings are logically possible and conform to specific regional numbering plans. The project includes ut

intl-tel-input is an international telephone input widget that provides a country-aware phone number entry experience with automatic formatting, validation, and E.164 normalization. It combines a searchable country picker with a format-as-you-type engine and a validation rule engine that checks numbers against country-specific patterns, returning machine-readable error codes when a number is invalid. The project ships as both a zero-dependency vanilla JavaScript library and as framework-specific components for React, Vue, Angular, and Svelte, all sharing the same core logic through a framewor

Cleave.js is a JavaScript library that applies real-time visual formatting to form fields as users type. It provides specialized utilities to enforce visual patterns for credit cards, phone numbers, dates, times, and large numerals. The library includes predefined formatting rules for common data types, such as detecting credit card issuers to apply correct spacing and managing country-specific regional patterns for international phone numbers. It also supports large numeral grouping using Western, Indian, and Chinese numbering systems. Users can define custom input patterns using specific b

This is a regular expression library designed for the validation and identification of mobile phone numbers from mainland China. It provides the structural rules and digit constraints necessary to verify that phone numbers follow the correct regional format. The library includes specific patterns to determine the telecommunications provider based on regional prefixes. It also features filters to distinguish between standard voice numbers and IoT or data-only plans. The project covers broad data validation capabilities, including input format verification and carrier identification.

PhoneInfoga is an open-source intelligence tool and information framework used to gather public data and metadata about phone numbers. It functions as a scanner that utilizes open-source intelligence techniques to identify carriers, line types, and owner reputations for international numbers. The system provides a web-based interface for performing research without a command line, alongside a REST API gateway for programmatically triggering scans and retrieving intelligence data. Its architecture supports a plugin-based model, allowing the integration of custom modules to expand data sources.

imaskjs is a JavaScript input mask library and DOM input manager used to enforce specific patterns, data types, and ranges on user input in real-time. It serves as a data formatting library and input validation tool that transforms raw input values into formatted strings using masks and custom pipes. The project provides dynamic masking capabilities, allowing input patterns to change or switch in real-time based on the characters a user types. It supports complex input constraints including regular expressions, numerical ranges, date-based verification, and character enumerations. The librar

AndroidCommon is a comprehensive utility library designed to provide reusable infrastructure and architectural patterns for Android application development. It organizes common helper functions into stateless modules, offering consistent access to system resources, data parsing logic, and core infrastructure abstractions. The framework distinguishes itself by providing specialized components for managing background tasks and complex user interface interactions. It includes utilities for coordinating background file transfers through the system download manager and executing shell commands to

Pen is a visual WYSIWYG markdown editor and live editing interface that converts markdown patterns into rich text elements in real-time. It serves as a tool for markdown content authoring and transforming editor state into standard markdown strings for export. The editor features a customizable text interface with a formatting toolbar for text-styling actions. It includes systems for hyperlink management and the automatic conversion of specific character sequences into structured headings, lists, blockquotes, and code blocks during the input process. The project provides capabilities for rea

This project is a programming education resource and a collection of vintage game ports. It provides a library of classic computer game implementations and algorithmic problems translated into modern memory-safe scripting languages for educational study and execution. The collection focuses on the implementation of game logic and the practice of fundamental computer science algorithms. It includes diverse examples of procedural content generation, such as random mazes and text-based art, alongside mathematical visualizations. The project covers a wide array of simulation categories, includin

This project provides a visual credit card form UI component and payment input visualizer. It creates an interactive checkout interface that displays a dynamic visual representation of a credit card, updating in real time as users enter payment details into a form. The interface includes localized payment capabilities, allowing the replacement of default labels and validation messages with custom strings to support multiple languages. Users can customize visual fields and input placeholders to control the default text and symbols displayed during the checkout process. The system manages real

GhostTrack is an open-source intelligence (OSINT) framework that aggregates geographic, network, and social identity information from public data sources. It functions as a digital footprint analyzer, collecting various pieces of publicly available information to build comprehensive profiles of target individuals. The framework combines multiple investigative capabilities into a single tool, including IP address geolocation, phone number intelligence, and social media username discovery. It distributes queries across external data services to maximize coverage and accuracy, resolving IP addre

validator.js is a JavaScript string validation and sanitization library. It provides a set of functions to verify that strings match specific patterns—such as emails, URLs, and alphanumeric formats—and a toolkit for cleaning and transforming text input to remove prohibited characters and trim whitespace. The library includes utilities for standardizing email addresses by lowercasing domains and removing sub-addressing markers. It also functions as an HTML entity escaper, replacing special characters with entities to prevent the browser from executing text as code. The project covers capabili

Tink is a multi-language cryptography library and security toolkit providing secure APIs for data encryption and digital signatures. It functions as a data encryption library and digital signature framework designed to prevent common implementation errors across different platforms and operating systems. The project serves as a cryptographic keyset manager, utilizing JSON for the storage, rotation, and serialization of keys to maintain consistency across various programming languages. It ensures identical cryptographic behavior globally by mapping language-specific libraries to a unified set

This project is a cross-language quantitative trading framework designed to implement and execute trading strategies consistently across Python, JavaScript, C++, and PineScript. It functions as a polyglot trading strategy translator and a multi-language algorithmic trading engine that maps high-level scripting and block-based logic to executable binaries. The system features a financial domain-specific language parser that translates specialized trading syntax and visual programming blocks into a standardized internal representation. It includes a technical analysis pattern library providing

RSSHub-Radar is a browser extension designed for the discovery and identification of RSS and RSSHub feeds on web pages. It functions as a feed detector that scans websites to locate compatible RSSHub routes and content sources. The project acts as an integration bridge, allowing users to export discovered feeds directly to third-party RSS reading platforms via a one-click subscription process. This facilitates a content aggregation workflow by simplifying how users find and collect diverse web content sources for streamlined consumption.

Inputmask is a JavaScript library that serves as a client-side input formatter and form input validator. It constrains text input fields to specific formats, such as phone numbers and dates, to ensure data consistency. The project provides guided text entry and user input validation to prevent formatting errors. It standardizes how structured information is entered in web browsers to support more reliable server-side processing. The library manages data validation and formatting by enforcing predefined patterns on user entry. It handles real-time input interception, cursor-position tracking,

Phone specifications API

This project is a curated collection of solved algorithmic challenges and reference implementations. It serves as a study guide for software engineering, providing a library of data structure and algorithm problems used to analyze efficient problem-solving techniques. The repository functions as a solution reference for coding challenges across multiple programming languages. It includes source code examples and conceptual hints designed for technical interview preparation and the study of common coding patterns. The content is organized as a static source code repository with language-speci

Presidio is a PII detection and anonymization framework designed to identify and mask personally identifiable information in text. It functions as a PII recognition pipeline and a data masking engine, using a combination of machine learning, regular expressions, and rule-based logic to locate sensitive entities. The system acts as an NER model orchestrator, allowing for the integration of external named entity recognition models and PII detectors to support multi-language privacy scrubbing. It employs a plugin-based recognizer architecture that can be extended with custom recognizers, deny-li

Kaitai Struct is a framework for declarative binary specification that provides automated parser and serializer generation across multiple programming languages. It uses a portable, domain-specific language to describe the layout of binary files and network packets, converting these specifications into source code for reading and writing binary data. The system enables cross-language data processing by translating a single structural definition into native source code for languages including C++, C#, Go, Java, JavaScript, Python, and Rust. This approach allows the same binary data specificati

Regexr is a web-based regular expression IDE designed for building, testing, and debugging patterns. It functions as a testing tool to validate expressions against sample text and a learning tool that provides an interactive guide and a built-in cheat sheet for studying syntax. The platform includes a community regex library, which is a searchable repository of user-contributed patterns. This enables the discovery, sharing, and reuse of proven matching logic through a public directory and collaborative sharing links. The tool supports real-time pattern construction with syntax highlighting a

SMSBoom is an automated SMS bomber and bulk messaging tool designed to send a rapid succession of text messages to a target phone number or a list of multiple recipients. It functions as a bulk SMS sender that automates the dispatch of large volumes of text messages. The project manages mass communication workflows through automated text dispatch and bulk messaging capabilities. It utilizes a system for sending messages to multiple recipients simultaneously via automated messaging systems. The tool handles message dispatching via HTTP requests to third party gateways, employing concurrent re

This project is a library of source code implementations designed to solve algorithmic challenges and mathematical problems. It serves as a collection of solved LeetCode problems, providing a reference for data structure usage and efficient logic. The repository is a polyglot code collection, implementing the same algorithmic logic across various programming environments, including general-purpose languages, SQL for database queries, and Bash for shell scripting. The content covers a broad range of computational tasks, including data querying, text processing, and the implementation of compl

Dataset, charts, models of 4 digit mobile number prefixes in India by state, operator name.

Faker is a Python library designed to generate realistic synthetic data for software testing, database prototyping, and privacy-preserving anonymization. It provides a comprehensive suite of tools to create diverse information types, including personal identities, financial records, geographic locations, and technical system metadata, allowing developers to populate environments with mock data that mimics real-world structures. The library is built on a modular provider architecture that supports dynamic method dispatch, enabling users to extend functionality by registering custom data genera

TOML parser for Crystal

AndroidUtilCode is an Android utility library and system API wrapper designed to reduce development boilerplate. It provides a collection of helper classes for common tasks including system settings management, file I/O, and hardware access. The project distinguishes itself through a comprehensive toolset for device management and UI assistance. It includes specialized capabilities for monitoring battery status, managing system volume and brightness, and implementing UI helpers to prevent duplicate click events. It also provides a dedicated system for coordinate conversion between different m