diff --git a/04-CustomLibrary/Custometest/JsonDiff.py b/04-CustomLibrary/Custometest/JsonDiff.py
new file mode 100644
index 0000000..de3b256
--- /dev/null
+++ b/04-CustomLibrary/Custometest/JsonDiff.py
@@ -0,0 +1,6 @@
+from json_compare import Jcompare
+
+def json_diff(a,b):
+    cp=Jcompare()
+    print(cp.compare(a,b))
+    
\ No newline at end of file