Git Rebase vs Merge: Which One Should You Use? (With Examples)

You’re working on a feature branch. Your teammate just merged a big update to main. Do you git merge or git rebase? Both integrate changes – but they tell very different stories.

Let’s settle the debate once and for all.

The Short Answer

· Use merge on public/shared branches (e.g., main, develop)
· Use rebase on private feature branches before opening a pull request
· Never rebase a branch someone else might be working on

What Actually Happens?

Merge creates a new “merge commit” that ties together the histories of both branches. Your branch’s commits stay exactly where they were – just with an extra junction point.git checkout feature git merge main

Result: A true, non-linear history. Safe, simple, but adds one extra commit.

Rebase rewrites your branch’s commits as if they started from the tip of main. No merge commit – just a clean, linear line.git checkout feature git rebase main

Result: Beautiful straight history. But you’re changing commit hashes (dangerous if pushed).

Before & After ExampleBefore rebase/merge: A---B---C feature / D---E---F---G main After merge: A---B---C feature / \ D---E---F---G---H main (H = merge commit) After rebase: A'--B'--C' feature / D---E---F---G main

Which One Breaks Things?

· Merge: never breaks existing commits. Always safe.
· Rebase: if you’ve already pushed feature, rebasing forces others to do a messy git pull –force. Don’t do it.

Pro Workflow (Team-Approved)

1. git checkout feature
2. git rebase main (clean up local history)
3. Force push to your personal feature branch (only if no teammates share it)
4. Open a pull request – GitHub/GitLab will merge cleanly with –no-ff (merge commit)

Rebase Interactive: Clean Before You Share

Use git rebase -i HEAD~3 to squash, reword, or drop messy commits. Your reviewer will thank you.pick 1234567 fix typo squash 89abcde oops another fix # combines into previous commit reword def0123 add login feature # changes commit message

Common Mistake: Rebasing main onto feature

Don’t do git rebase feature main. That rewrites main – instant team chaos.

Summary Table

Merge Rebase
History Preserves actual timeline Linear, looks like all commits were made now
Safety 100% safe on shared branches Dangerous if branch is shared
Best for Integrating main into a shared branch Cleaning up private feature branches before PR
Extra commits Adds one merge commit None

Bottom line: Rebase locally, merge publicly. Your team will keep their sanity – and their commits.