I have 2 branches, which are not ready to be merged yet, but have some complementary logic, which I\'d like to review (before merging)
Can I check out multiple git branc
As already mentioned, you can diff branches with git diff:
git diff [--options] [--] […]
This form is to view the changes you have in your working tree relative to the named . You can use HEAD to compare it with the latest commit, or a branch name to compare with the tip of a different branch.
Excerpt above is from Git documentation.