Welcome to the RNAalifold web server. It will predict a consensus secondary structure of a set of aligned sequences. Current limits are 3000 nt and 300 sequences for an alignment.
Simply paste or upload your alignment(s) below and click Proceed. Accepted alignment formats are CLUSTAL W and FASTA (will be detected automatically). To get more information on the meaning of the options click the symbols. You can test the server using this sample alignment.