iTOL 3.0 / iTOL Toolbar for Mozilla Firefox – Display & Manipulation of Phylogenetic Trees

iTOL 3.0 / iTOL Toolbar for Mozilla Firefox


iTOL (Interactive Tree Of Life) is an online tool for the display and manipulation of phylogenetic trees. It provides most of the features available in other tree viewers, and offers a novel circular tree layout, which makes it easy to visualize mid-sized trees (up to several thousand leaves). Trees can be exported to several graphical formats, both bitmap and vector based.

The iTOL Toolbar for Mozilla Firefox provides an overview of your iTOL workspaces, projects and trees directly from the toolbar, with easy access to the many iTOL features. For example, double clicking any tree in the toolbar will take you to the iTOL tree display page and load the corresponding tree.


Bork Group



  • Web Browser (Firefox)


 iTOL / iTOL Toolbar for Mozilla Firefox



Bioinformatics. 2007 Jan 1;23(1):127-8. Epub 2006 Oct 18.
Interactive Tree Of Life (iTOL): an online tool for phylogenetic tree display and annotation.
Letunic I, Bork P.

Letunic I and Bork P (2011)
Nucleic Acids Res doi: 10.1093/nar/gkr201
Interactive Tree Of Life v2: online annotation and display of phylogenetic trees made easy