diff --git a/generate_secrets.py b/generate_secrets.py
new file mode 100755
index 0000000..2717ece
--- /dev/null
+++ b/generate_secrets.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+"""
+Open the secrets.yml and replace all passwords.
+Original is backed up.
+"""
+
+import random
+import string
+from subprocess import call
+from yaml import load, dump
+
+try:
+    from yaml import CLoader as Loader, CDumper as Dumper
+except ImportError:
+    from yaml import Loader, Dumper
+
+# length of generated passwords.
+pass_length = 20
+
+with open('secrets.yml', 'r') as f:
+    data = load(f, Loader=Loader)
+
+for key, value in data.iteritems():
+    data[key] = ''.join(
+        random.choice(string.ascii_letters + string.digits)
+        for _ in range(pass_length))
+
+# Make numbered backups of the secrets file.
+call(['cp', '--backup=numbered', 'secrets.yml', 'secrets.yml.bak'])
+
+with open('secrets.yml', 'w') as f:
+    dump(data, f, Dumper=Dumper, default_flow_style=False)