diff --git a/ssmain/management/commands/find_duplicate_users.py b/ssmain/management/commands/find_duplicate_users.py
new file mode 100644
index 0000000..cc63777
--- /dev/null
+++ b/ssmain/management/commands/find_duplicate_users.py
@@ -0,0 +1,29 @@
+# Society Self-Service
+# Copyright © 2018-2020 Yingtong Li (RunasSudo)
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see .
+
+from django.core.management.base import BaseCommand, CommandError
+
+from django.contrib.auth.models import User
+from django.db.models import Count
+
+class Command(BaseCommand):
+ help = 'Finds Users with duplicate emails'
+
+ def handle(self, *args, **options):
+ duplicates = User.objects.values('email').annotate(email_count=Count('email')).filter(email_count__gt=1)
+
+ for d in duplicates:
+ print(d.email)
diff --git a/ssmembership/management/commands/find_duplicate_members.py b/ssmembership/management/commands/find_duplicate_members.py
new file mode 100644
index 0000000..c65d4ab
--- /dev/null
+++ b/ssmembership/management/commands/find_duplicate_members.py
@@ -0,0 +1,29 @@
+# Society Self-Service
+# Copyright © 2018-2020 Yingtong Li (RunasSudo)
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see .
+
+from django.core.management.base import BaseCommand, CommandError
+
+from ssmembership.models import Member
+from django.db.models import Count
+
+class Command(BaseCommand):
+ help = 'Finds members with duplicate emails'
+
+ def handle(self, *args, **options):
+ duplicates = Member.objects.values('email').annotate(email_count=Count('email')).filter(email_count__gt=1)
+
+ for d in duplicates:
+ print(d.email)