The DMPOnline tool allows you to build a data management plan by answering a series of detailed questions, and has templates for each of the major UK funding bodies. This has been developed by the Digital Curation Centre with funding from JISC. We have also added a University of Stirling template for those occasions you do not have a funder. Here is the DMPonline User Guide ver 3.0
DMPTool is similar to DMPOnline, but from the University of California. It includes guidance based around the requirements of major US funding bodies.