Review Board

Review Board is an open source, web-based platform for reviewing code and other project assets like images and documents. It helps teams manage review requests, discussions, and iterative revisions with detailed diffs and strong integration options.

Key Features

• Review requests that group code changes, files, and discussion threads in one place
• Advanced diff viewer with syntax highlighting, interdiffs, moved line detection, and indentation-aware changes
• Inline, multi-line commenting with threaded discussions and issue tracking for required fixes
• Image review and diffing with region-based comments and multiple comparison modes
• Document review workflows (including PDF and office-format review capabilities via extensions)
• Integrations with many SCM systems (including Git, Subversion, Mercurial, and Perforce) and common hosting providers
• Extensible API and extension framework for custom integrations and automation
• Dashboard for tracking incoming/outgoing reviews with filtering and bulk actions

Use Cases

• Team code review workflows outside of Git forge pull requests, especially for multi-repo or non-Git environments
• Reviewing design assets, screenshots, and documentation alongside code changes
• Enforcing review quality with structured discussions and tracked issues before approval

Review Board is well-suited for organizations needing a dedicated, extensible review system that supports both source code and non-code artifacts. Its mature diff tools and broad SCM integration make it a strong option for heterogeneous development environments.