StatRepeats is a tool for finding maximal repeats in an input (nucleotide or protein) sequence. It can extract four types of repeats: direct non-complementary, direct complementary, inverse non-complementary and inverse complementary repeats. It can use statistical estimation to extract only statistically significant repeats, or all repeats. It also can filter the set of found repeats based on the specified p-value. Results can be redirected to the standard output, to files in a few different formats, or directly into an ODBC-compatible database.