Comparing differences between Git branches is essential for code reviews, understanding feature changes, and planning merges in collaborative development. As the creator of CoreUI with over 25 years of development experience, I regularly compare branches to review feature implementations and assess merge impacts. The most straightforward approach is using git diff branch1 branch2 to see all differences between two branches. This command provides comprehensive insight into what changes will be introduced when merging branches.

Reviewing staged changes before committing is crucial for maintaining clean commit history and catching potential issues. As the creator of CoreUI with extensive Git experience across numerous projects, I always review staged changes to ensure only intended modifications are committed. The git diff --staged command shows exactly what will be included in your next commit, allowing for final verification. This practice prevents accidental commits and maintains high code quality standards in collaborative development.