Mr. Holmes is an open-source intelligence tool that aggregates multiple data-gathering capabilities into a single command-line interface.
The tool addresses the need to consolidate disparate OSINT techniques by combining geolocation lookup, username verification across platforms, information gathering, and spam detection into one unified framework. It works by accepting various input types—usernames, locations, or other identifiers—and querying multiple sources to return correlated results. This approach eliminates the friction of switching between separate tools during reconnaissance workflows.
The tool runs on Linux, macOS, Windows, and Termux, making it accessible across common development and penetration-testing environments. It suits security researchers, penetration testers, and OSINT practitioners who need rapid information gathering without managing a collection of standalone utilities. The project positions itself as a complete framework rather than a specialized single-purpose tool, which appeals to users building comprehensive reconnaissance workflows.
Development activity shows consistent maintenance with regular updates addressing bugs and adding features. The project accepts community contributions through pull requests and maintains active issue tracking, indicating responsiveness to user feedback and reported problems. Documentation is provided through a dedicated project homepage alongside the repository README, suggesting attention to usability beyond the code itself.
