Freely accesible server to build a sequence logo, using the information-theory-based methodology to generate graphical representations of the consensus sequence of gapped and ungapped protein and DNA alignments. The server also compiles HMMER, allowing you to build a HMM-profile and a majority-rule consensus sequence from the same alignment.
Alignment Format Converter
Freely accesible server to convert, in a sole step, one alignment from an original format to one or more different formats; It supports Clustal, Phylip, Stockholm, Fasta, MSF, and Pir formats.
Freely accesible server to Join independent multiple alignments into one single alignment (only the fasta format is allowed).