diff --git a/devel/tests/test_reports.py b/devel/tests/test_reports.py
index bd64027e..fefd8582 100644
--- a/devel/tests/test_reports.py
+++ b/devel/tests/test_reports.py
@@ -58,3 +58,18 @@ def test_reports_mismatched_signature(self):
     def test_reports_signature_time(self):
         response = self.client.get('/devel/reports/signature-time', follow=True)
         self.assertEqual(response.status_code, 200)
+
+    def test_reports_pkgbases(self):
+        response = self.client.get('/devel/reports/old/pkgbases/')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response['Content-Type'], 'text/plain')
+
+    def test_reports_pkgbases_with_username(self):
+        response = self.client.get(
+            f'/devel/reports/uncompressed-man/{self.user.username}/pkgbases/')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response['Content-Type'], 'text/plain')
+
+    def test_reports_pkgbases_invalid_report(self):
+        response = self.client.get('/devel/reports/nonexistent/pkgbases/')
+        self.assertEqual(response.status_code, 404)
diff --git a/devel/urls.py b/devel/urls.py
index aea48404..e5f490a0 100644
--- a/devel/urls.py
+++ b/devel/urls.py
@@ -12,6 +12,9 @@
     path('stats/', views.stats, name='devel-stats'),
     path('newuser/', views.new_user_form),
     path('profile/', views.change_profile),
+    re_path(r'^reports/(?P<report_name>.*)/(?P<username>.*)/pkgbases/$',
+            views.report_pkgbases),
+    re_path(r'^reports/(?P<report_name>.*)/pkgbases/$', views.report_pkgbases),
     re_path(r'^reports/(?P<report_name>.*)/(?P<username>.*)/$', views.report),
     re_path(r'^reports/(?P<report_name>.*)/$', views.report),
 ]
diff --git a/devel/views.py b/devel/views.py
index f0d639ee..17e41b84 100644
--- a/devel/views.py
+++ b/devel/views.py
@@ -265,6 +265,22 @@ def change_profile(request):
                    'profile_form': profile_form})
 
 
+@login_required
+def report_pkgbases(request, report_name: str, username: str | None = None) -> HttpResponse:
+    report = {report.slug: report for report in available_reports()}.get(report_name, None)
+    if report is None:
+        raise Http404
+
+    packages = Package.objects.normal()
+    if report.slug in ('uncompressed-man', 'uncompressed-info'):
+        packages = report.packages(packages, username)
+    else:
+        packages = report.packages(packages)
+
+    pkgbases = sorted({pkg.pkgbase for pkg in packages})
+    return HttpResponse('\n'.join(pkgbases), content_type='text/plain')
+
+
 @login_required
 def report(request, report_name, username=None):
     available = {report.slug: report for report in available_reports()}