Tracer is graphical tool for visualization and diagnostics of MCMC output.

It can read output files from MrBayes and BEAST.


You can download Tracer from here:

Using Tracer

A tutorial is available describing how to use Tracer to analyse the output from BEAST.

Citing Tracer

The recommended citation for this program is:

Rambaut A, Suchard MA, Xie D & Drummond AJ (2014) Tracer v1.6, Available from