You don't necessarily have to go through the hassle to install Clustal on your computer. Instead, you can run Clustal online on several servers on the web:
Clustal 2 comes in two flavors: the command-line version
Clustal W and the graphical version Clustal X.
Precompiled executables for Linux, Mac OS X and Windows (incl.
XP and Vista) of the
most recent version
along with the source code are
available for download here.
You can also browse for
older versions (Clustal W 1.81, Clustal V etc).
The current version of Clustal 2 is also mirrored on the EBI ftp site .
Clustal 2.1 is released under the GNU Lesser GPL.
Please have a look at Clustal X's builtin help menu or if you
are using Clustal W use
clustalw -help or /help
(depending on your platform and version of Clustal).
Online versions (which might be out of date) can be found here:
There are a couple of references on how to use
Clustal W/X on the net. A very nice tutorial which also covers
advanced features like using secondary structures for profile
"Using Clustal X for multiple sequence"
by Jarno Tuimala
Clustal is currently maintained at the Conway Institute UCD Dublin by Des Higgins, Fabian Sievers, David Dineen, and Andreas Wilm. You can reach us at
If you want to report a bug please make sure, that you are using the most recent version of Clustal. Please also check if the bug has already been reported on our Bugzilla webpage
We would like to thank all Clustal users who have send in feedback, bug reports and feature requests. Thanks to all people who helped testing and packaging Clustal, in particular Charles Plessy, Richard Christen, Blake Mertz, Ian Jeffery...
Recent work on Clustal was mainly funded by Science Foundation Ireland
2010-11-17 · Version 2.1 released. See CHANGELOG
2009-09-23 · Version 2.0.12 released. See CHANGELOG
2009-04-16 · Version 2.0.11 released. See CHANGELOG
2008-10-14 · Version 2.0.10 released. See CHANGELOG
2008-06-23 · Version 2.0.9 released. See CHANGELOG
2008-06-03 · Version 2.0.8 released. See CHANGELOG
2008-05-13 · Version 2.0.7 released. See CHANGELOG
2008-04-24 · Version 2.0.6 released. See CHANGELOG
2008-03-14 · Version 2.0.5 released. See CHANGELOG
2008-03-06 · Server will be down from 2008-03-07 to 2008-03-08.
2008-03-05 · Version 2.0.4 released. See CHANGELOG
2008-02-29 · Uploaded webpage.