git remove all untracked files and directories

Quick Answer

# Preview what would be deleted (dry run — safe to run first)
git clean -nfd

# Delete untracked files and directories
git clean -fd

When to use this

You have build artifacts, generated files, or editor temp files cluttering your working directory that are not in .gitignore.

Other causes & fixes

Flag reference

git clean -f        # delete untracked files only
git clean -fd       # delete untracked files AND directories
git clean -fdx      # also delete files ignored by .gitignore (e.g. node_modules)
git clean -fdi      # interactive mode — confirm each deletion

Clean only a specific subdirectory

git clean -fd src/