HKVertrag is Windows-based contract management software that centralizes agreements and stores details like parties, duration, termination clauses, costs, and document locations. Operating without cloud connectivity, it keeps data locally on workstations or internal servers for security. Supporting various contract types, such as rental agreements, service contracts, and insurance policies, users can attach scanned documents and amendments to records. The customizable contract list allows column adjustments, while deadline monitoring provides color-coded alerts for contracts needing attention. Multi-user access works via local databases or MSSQL/MySQL servers, with three security levels: no login, shared password, or individual accounts with permissions for creating, editing, deleting, printing, and exporting data. Features include user-defined fields, multi-company support, and data export options like CSV, Excel, HTML, and Word formats.