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ClustalW2 2.1

A multi-sequence alignment utility for proteins or DNA

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ClustalW2 is a small yet powerful and highly efficient software designed to perform multi-sequence alignments for Proteins or DNA. The program is able to generate biologically meaningful sequence alignments of various distinct sources. Furthermore, the application will help you easily calculate the appropriate match for the chosen sequences.

ClustalW2 will also align the sequences, allowing you to easily see the similarities, identities and differences that may occur between them. In addition, the application will give you the possibility to view a series of Phylograms and Cladograms in order to quickly and effortlessly identify and see evolutionary relationships between your sequences.


  • The application is lightweight and powerful.
  • The program offers a set of useful and efficient features.


  • Some Biology knowledge is required.
Name ClustalW2
Version 2.1
Developer | see all products from this developer
Product Homepage ClustalW2
License Free (Freeware)
Last Week Downloads 2
All Time Downloads 4,736
Filename clustalw-2.1-win.msi
Filesize 1.9MB
MD5 Checksum 6A26F21B695AD0BFB4391F311FFECD48
OS Support Windows All
Category Home & Education

100% CLEAN Certification

BadgeClustalW2 has been tested by team against viruses, spyware, adware, trojan, backdoors and was found to be 100% clean. Our editors will recheck this software periodically to assure that it remains clean.


Old Versions

Software Date Added
ClustalW2 2.1 November 23, 2010 - Latest Version
ClustalW2 2.0.11 April 29, 2009

Download the free ClustalW2