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Source Code Biol Med. 2007 Oct 31;2:7. doi: 10.1186/1751-0473-2-7.

TreeViewJ: An application for viewing and analyzing phylogenetic trees.

Author information

The MITRE Corporation, 202 Burlington Rd, Bedford, MA, USA.
Department of Biomedical Engineering, Boston University, 44 Cummington St, Boston, MA, USA.
Contributed equally



Phylogenetic trees are widely used to visualize evolutionary relationships between different organisms or samples of the same organism. There exists a variety of both free and commercial tree visualization software available, but limitations in these programs often require researchers to use multiple programs for analysis, annotation, and the production of publication-ready images.


We present TreeViewJ, a Java tool for visualizing, editing and analyzing phylogenetic trees. The software allows researchers to color and change the width of branches that they wish to highlight, and add names to nodes. If collection dates are available for taxa, the software can map them onto a timeline, and sort the tree in ascending or descending date order.


TreeViewJ is a tool for researchers to visualize, edit, "decorate," and produce publication-ready images of phylogenetic trees. It is open-source, and released under an GPL license, and available at

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