diff --git a/data_diff/databases/mysql.py b/data_diff/databases/mysql.py
index 1ee04460..72665dee 100644
--- a/data_diff/databases/mysql.py
+++ b/data_diff/databases/mysql.py
@@ -8,6 +8,7 @@
     Float,
     Decimal,
     Integer,
+    JSON,
     Text,
     TemporalType,
     FractionalType,
@@ -68,6 +69,8 @@ class Dialect(BaseDialect):
         "tinytext": Text,
         # Boolean
         "boolean": Boolean,
+        # JSON
+        "json": JSON,
     }
 
     def quote(self, s: str) -> str:
diff --git a/data_diff/utils.py b/data_diff/utils.py
index 1d1405fd..5c0ab2d0 100644
--- a/data_diff/utils.py
+++ b/data_diff/utils.py
@@ -513,6 +513,13 @@ def diff_int_dynamic_color_template(diff_value: int) -> str:
 
 
 def _jsons_equiv(a: str, b: str):
+    # Treat Python None (DB null) as the JSON null literal so that a NULL on
+    # the MySQL side matches a 'null' string produced by TO_JSON_STRING(NULL)
+    # on the BigQuery side (or any other DB that serializes NULL as 'null').
+    if a is None:
+        a = "null"
+    if b is None:
+        b = "null"
     try:
         return json.loads(a) == json.loads(b)
     except (ValueError, TypeError, json.decoder.JSONDecodeError):  # not valid jsons