• pmccabe - McCabe-style function complexity and line counting for C and C++
• pymetrics - Python code metric reporting tool
• sloccount - programs for counting physical source lines of code (SLOC)

Project management tools

Trac > Bugzilla

• Redmine

other commercial products:

• JIRA
• FogBugz FogBugz has a student/startup edition that is free indefinitely, for 2 or less users.