MetricFu is an aggregator of several static code analysis tools for Ruby. It displays code metrics from Flog, Flay, Saikuro, Churn, Reek, Roodi, Code Statistics, and Rails Best Practices (and optionally code coverage with RCov). With MetricFu, you get a combined HTML report of all the metrics. Installing gem: gem install metric_fu Running follwing command from your application root. metric_fu This will generate reports in metric_fu's output directory (tmp/metric_fu/output). By default, metric_fu will use the built-in html formatter to generate HTML reports for each metric with pretty graphs and output can be seen