diff --git a/README.rst b/README.rst
index a71f220f..af8e6536 100644
--- a/README.rst
+++ b/README.rst
@@ -40,7 +40,7 @@ Features
 --------
 
 * Configure multiple working repositories.
-* Batch git_ command with subcommands `add`, `checkout`, `commit`, `pull`, `push`, `reset` and `status`.
+* Batch git_ command with subcommands `add`, `checkout`, `commit`, `diff`, `pull`, `push`, `reset` and `status`.
 * Batch create/close/reopen issues, create pull requests, merge pull requests and delete branches by name on GitHub.
 * Batch poetry commands such as `version patch`, `install`, `update` or `add`.
 
diff --git a/src/git_portfolio/__main__.py b/src/git_portfolio/__main__.py
index f6009e61..1ea36c6a 100644
--- a/src/git_portfolio/__main__.py
+++ b/src/git_portfolio/__main__.py
@@ -125,6 +125,16 @@ def commit(args: tuple[str]) -> res.ResponseFailure | res.ResponseSuccess:
     )
 
 
+@main.command("diff", context_settings={"ignore_unknown_options": True})
+@click.argument("args", nargs=-1)
+@gitp_config_check
+def diff(args: tuple[str]) -> res.ResponseFailure | res.ResponseSuccess:
+    """Batch `git diff` command."""
+    return git.GitUseCase().execute(
+        CONFIG_MANAGER.config.github_selected_repos, "diff", args
+    )
+
+
 @main.command("pull", context_settings={"ignore_unknown_options": True})
 @click.argument("args", nargs=-1)
 @gitp_config_check
diff --git a/tests/test_main.py b/tests/test_main.py
index a3723560..089e0007 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -263,6 +263,17 @@ def test_commit_success(
     )
 
 
+def test_diff_success(
+    mock_git_use_case: MockerFixture,
+    mock_config_manager: MockerFixture,
+    runner: CliRunner,
+) -> None:
+    """It calls diff."""
+    runner.invoke(git_portfolio.__main__.main, ["diff"], prog_name="gitp")
+
+    mock_git_use_case.return_value.execute.assert_called_once_with([REPO], "diff", ())
+
+
 def test_pull_success(
     mock_git_use_case: MockerFixture,
     mock_config_manager: MockerFixture,