diff --git a/client/components/SupabaseStatus.tsx b/client/components/SupabaseStatus.tsx
new file mode 100644
index 00000000..87a3add7
--- /dev/null
+++ b/client/components/SupabaseStatus.tsx
@@ -0,0 +1,45 @@
+import React from 'react';
+import { isSupabaseConfigured } from '@/lib/supabase';
+import { Alert, AlertDescription } from '@/components/ui/alert';
+import { Button } from '@/components/ui/button';
+import { Database, ExternalLink, Info } from 'lucide-react';
+
+export default function SupabaseStatus() {
+  if (isSupabaseConfigured) {
+    return null; // Don't show anything if Supabase is properly configured
+  }
+
+  return (
+    <div className="fixed bottom-4 right-4 z-50 max-w-md">
+      <Alert className="border-amber-500/50 bg-amber-500/10 text-amber-300">
+        <Database className="h-4 w-4" />
+        <AlertDescription className="space-y-3">
+          <div>
+            <strong>Demo Mode:</strong> Supabase is not configured. 
+            Set up your database to enable full functionality.
+          </div>
+          <div className="flex gap-2">
+            <Button
+              size="sm"
+              variant="outline"
+              className="border-amber-500/50 text-amber-300 hover:bg-amber-500/20"
+              onClick={() => window.open('/SUPABASE_SETUP.md', '_blank')}
+            >
+              <Info className="h-3 w-3 mr-1" />
+              Setup Guide
+            </Button>
+            <Button
+              size="sm"
+              variant="outline"
+              className="border-amber-500/50 text-amber-300 hover:bg-amber-500/20"
+              onClick={() => window.open('https://supabase.com', '_blank')}
+            >
+              <ExternalLink className="h-3 w-3 mr-1" />
+              Supabase
+            </Button>
+          </div>
+        </AlertDescription>
+      </Alert>
+    </div>
+  );
+}