diff --git a/bin/swh-hashdir b/bin/swh-hashdir
new file mode 100755
index 0000000..bb0f916
--- /dev/null
+++ b/bin/swh-hashdir
@@ -0,0 +1,20 @@
+#!/usr/bin/python3
+
+# Copyright (C) 2015  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+import os
+import sys
+
+from swh.core.hashutil import hashfile
+
+if __name__ == '__main__':
+    dirname = sys.argv[1]
+
+    hashes = {}
+    for root, _dirs, files in os.walk(dirname):
+        for name in files:
+            path = os.path.join(root, name)
+            hashes[path] = hashfile(path)