diff --git a/tools/unix/clean_indexes.sh b/tools/unix/clean_indexes.sh
new file mode 100755
index 0000000000..1752e4bbe3
--- /dev/null
+++ b/tools/unix/clean_indexes.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+# Removes indices after an app run. You can pass a path as the first argument.
+set -u -x
+TARGET="${1:-$(dirname "$0")/../../data}"
+for mwm in "$TARGET/"*.mwm; do
+  rm -rf "$TARGET/$(basename "$mwm" .mwm)"
+done