User Scanner is an OSINT tool that performs email and username intelligence gathering across hundreds of web platforms.
The tool addresses the need for comprehensive digital footprinting by scanning across a large network of websites to identify where an email address or username has been registered. Rather than checking sites manually or using limited databases, User Scanner automates the process by testing against multiple scan vectors simultaneously, returning metadata and account information discovered across the internet. The approach enables security researchers and investigators to map a target's digital presence quickly from a single input.
Organizations conducting security research, penetration testing, or threat intelligence work should consider this tool if they need broad account enumeration capabilities. It suits projects requiring rapid identification of registered accounts across many platforms and digital footprinting for investigation purposes. The tool runs on multiple operating systems and is available as a command-line utility, making it accessible to teams with varying infrastructure setups.
The project shows active maintenance with regular updates to its scan vectors to keep pace with platform changes. Development includes integration with the Model Context Protocol, expanding the tool's usability within AI-assisted workflows. The codebase remains responsive to user feedback and platform evolution, ensuring the scan vectors stay functional as websites modify their structures and authentication methods.
