SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
Sourcetrail - Sourcetrail is a cross-platform source explorer for C/C++ and Java.
ProjectCodeMeter - Measures Software Development Productivity, Estimates Costs, Source Code Metrics and Quality using Automatic Analysis
CodeCompass - CodeCompass is an extensible code comprehension tool.
Woboq Code Browser - Web-based code browser for your C/C++ projects
JArchitect - JArchitect is used by developers to measure, understand and improve their Java code quality.