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Clustal Omega

Multiple sequence alignment that scales to thousands of sequences.

Server

Clustal Omega

EMBL-EBI · ebi.ac.uk

Does
Multiple sequence alignment that scales to thousands of sequences.
Access
Free

Use this when

Large alignments where speed matters. For small sets of divergent sequences MAFFT L-INS-i or T-Coffee are usually more accurate.

Open Clustal Omega

External tool. We link, we don’t host — nothing you enter on Biology 101 reaches them.

About this tool

The current Clustal generation, accurate and fast enough for very large protein and nucleotide alignments.

Related tools

  • MAFFTMultiple alignment with accuracy modes for difficult sequence sets.
  • EMBOSS NeedleGlobal pairwise alignment, the reference implementation.

Science last reviewed .