Crucible

Crucible is a collaborative code review platform from Atlassian that allows users to review code, discuss changes and share knowledge with colleagues. Crucible supports Git and many other development tools, such as SVN and Perforce. It also has automated workflows that make it easy to assign reviews, generate reports from the data in the system and track compliance with company policies. Crucible allows users to assign code reviews to teammates, and supports formal, workflow-based and quick reviews. Threaded discussions let users comment on reviews, from entire changesets down to specific source lines.