Tom's OSINT Workbench

Tom's OSINT Workbench is a free desktop application for Windows that supports structured offline investigations. It enables analysts to build cases by tracking interconnected entities drawn from public sources and to visualize those relationships in graphs.

The software records nine entity types: people, companies, domains, social profiles, emails, phones, addresses, usernames, and IP addresses. Each connection carries a typed relationship and one of three confidence levels: confirmed, probable, or unverified. Cases are stored in SQLite files local to the machine. Investigators can apply force-directed or hierarchical graph layouts rendered with GDI+, drag, zoom, pan, and click nodes to inspect details. Nodes are colored by entity type and edges styled by confidence. The interface offers nine investigation tabs, a choice of dark and light themes, and integration with seven public APIs for data lookup. A library of 94 curated OSINT resources is also provided within the application. Users can create timeline snapshots, compare changes over time, and export self-contained HTML reports that contain the full case without external dependencies.

The application ships as a single portable executable with zero external dependencies. It requires no accounts, no cloud services, and no subscriptions. All data remains on the user's machine. It is aimed at analysts, journalists, and security researchers who need investigation software that avoids third-party data storage.

Tom Dahne develops and distributes the tool under a free license. Version 1.0.0 is available for download together with a user guide.