Data Modeling and Databases - Functional dependencies helper
With this program/tool you can calculate database things like the closure, superkeys, candidatekeys, attribute closure, canonicalcover, third normal form (3NF) and Boyce-Codd normal form (BCNF).
Follow this link to go to the FD helper page.
An example of the FD helper is shown below.
frames not supported, follow this link, its about Example Functional dependencies helper