| More docs on the ARB website. See also index of helppages. Last update on 22. May 2026 .

Main topics: ARB: a Short Introduction Glossary External tools used by ARB (doc) | Related topics:
# MAFFT DESCRIPTION Accuracy-oriented methods: Speed-oriented methods: LICENSE ## DESCRIPTION
### MAFFT is a multiple sequence alignment program for unix-like operating systems. It offers a range of multiple alignment methods, L-INS-i (accurate; for alignment of <∼200 sequences), FFT-NS-2 (fast; for alignment of <∼10,000 sequences), etc. ### See http://mafft.cbrc.jp/alignment/software/algorithms/algorithms.html for a detailed explanation of the algorithms. ### Copyright (c) 2009 Kazutaka Katoh
## Accuracy-oriented methods:
### L-INS-i Probably most accurate; recommended for <200 sequences; iterative refinement method incorporating local pairwise alignment information. ### G-INS-i Suitable for sequences of similar lengths; recommended for <200 sequences; iterative refinement method incorporating global pairwise alignment information. ### E-INS-i Suitable for sequences containing large unalignable regions; recommended for <200 sequences.
## Speed-oriented methods:
### FFT-NS-i Iterative refinement method; two cycles only. ### FFT-NS-2 Fast; progressive method. ### NW-NS-i Iterative refinement method without FFT approximation; two cycles only. ### NW-NS-2 Fast; progressive method without the FFT approximation.
## LICENSE
### MAFFT: multiple sequence alignment program Copyright (c) 2009 Kazutaka Katoh ### Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: ### Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. ### The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. ### THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.