LoopMatcher
Find sequence-specific stem-loops in FASTA and GenBank files.
...It uses RNAfold to predict sequence structure and UShuffle to generate random sequences with a defined k nucleotide frequency. Also, sequences in GenBank format can be downloaded directly from NCBI using the NCBI access ID.
Requirements
JAVA Runtime 8. It's highly recommended to have a multicore processor to process large sequences.
* Currently, this version only runs in Windows x64.