Introduction SPMF is an open-source data mining mining library written in Java, specialized in pattern mining. It is distributed under the GPL v3 license. It offers implementations of 82 data mining algorithms for: sequential pattern mining, association rule mining, itemset mining, sequential rule mining, clustering. The source code of each algorithm can be integrated in other Java software. Moreover, SPMF can be used as a standalone program with a simple user interface or from the command line. The current version is v0.9 6r2 and was released the 30th November 2014.