Brief analysis tools provide a starting point for legal research, or a final check of court documents prior to filing. These solutions allow users to upload a brief or any document containing citations, and provides an analysis of the caselaw cited, including a report of cases that are relevant to the issues in the brief. The leading solution in the United States is Casetext Legal Research. In France, Doctrine is the category leader. Both Westlaw and LexisNexis have developed competitor products.