diff --git a/format.sh b/format.sh
new file mode 100755
index 0000000..9946679
--- /dev/null
+++ b/format.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+set -xue
+
+find . -type f -name '*.c' -exec clang-format -i {} \;
+find . -type f -name '*.h' -exec clang-format -i {} \;