FigTree

FigTree provides a graphical interface for visualizing phylogenetic trees, allowing users to explore tree structures and associated annotations. It supports the display of trees generated by BEAST, enabling researchers to inspect summarized and annotated phylogenies directly within the application. The program includes tools for adjusting visual aspects such as branch lengths, node labels, and colour schemes to aid interpretation.

In addition to viewing, FigTree offers features for preparing figures suitable for publication. Users can customize layout, export graphics, and add annotations to produce clear, presentation‑ready images of their phylogenetic analyses. The software is packaged for macOS and is considered stable for routine use.

FigTree is aimed at scientists and analysts who need a lightweight, desktop‑based solution for examining and illustrating phylogenetic results, particularly those working with BEAST output. It is a community‑maintained alternative to commercial viewers, though it has been succeeded by the newer PearTree application.