what does git fetch do
Git fetch downloads updates from a remote repository into your local Git data, but it does not merge them into your current branch. That makes it a safe way to see what changed before you decide to integrate it.
What it does
- Retrieves new commits, branches, and tags from a remote like
origin.
- Updates your remote-tracking branches such as
origin/main.
- Leaves your working files and current branch unchanged.
Why it matters
git fetch is useful when you want to review remote changes first, compare
history, or avoid accidental merges. Git documentation describes it as
downloading refs and the objects needed to complete their histories, which is
why it does not rewrite your local work.
Fetch vs pull
git fetch: downloads remote updates only.
git pull: downloads and then merges, or rebases depending on your setup.
A simple example: if a teammate pushes new work to main, git fetch lets
you inspect origin/main before deciding whether to merge it into your
branch.
Useful commands
git fetchgit fetch origingit fetch --allgit fetch --tags
TL;DR: git fetch updates your local view of the remote without changing your
current branch, so you can review changes safely first.
