diff --git a/clean-branches b/clean-branches
new file mode 100755
index 0000000..563147d
--- /dev/null
+++ b/clean-branches
@@ -0,0 +1,7 @@
+#!/usr/bin/env dash
+set -eu
+
+# clean-branches
+# delete all local branches except the current one
+
+git branch | grep -v "^*" | xargs git branch -D