diff --git a/src/org/redkale/convert/bson/BsonFactory.java b/src/org/redkale/convert/bson/BsonFactory.java
index d082b3c7d..f4cbf54d3 100644
--- a/src/org/redkale/convert/bson/BsonFactory.java
+++ b/src/org/redkale/convert/bson/BsonFactory.java
@@ -43,6 +43,10 @@ public final class BsonFactory extends ConvertFactory<BsonReader, BsonWriter> {
         return instance;
     }
 
+    public static BsonFactory create() {
+        return new BsonFactory(null, Boolean.getBoolean("convert.bson.tiny"));
+    }
+
     @Override
     public final BsonConvert getConvert() {
         if (convert == null) convert = new BsonConvert(this, tiny);
diff --git a/src/org/redkale/convert/json/JsonFactory.java b/src/org/redkale/convert/json/JsonFactory.java
index f49659f0e..4306ddebf 100644
--- a/src/org/redkale/convert/json/JsonFactory.java
+++ b/src/org/redkale/convert/json/JsonFactory.java
@@ -5,13 +5,12 @@
  */
 package org.redkale.convert.json;
 
-import org.redkale.convert.ConvertType;
-import org.redkale.convert.ConvertFactory;
 import java.io.Serializable;
-import java.math.*;
+import java.math.BigInteger;
 import java.net.*;
+import org.redkale.convert.*;
 import org.redkale.convert.ext.*;
-import org.redkale.util.*;
+import org.redkale.util.DLong;
 
 /**
  *
@@ -46,6 +45,10 @@ public final class JsonFactory extends ConvertFactory<JsonReader, JsonWriter> {
         return instance;
     }
 
+    public static JsonFactory create() {
+        return new JsonFactory(null, Boolean.getBoolean("convert.json.tiny"));
+    }
+
     @Override
     public final JsonConvert getConvert() {
         if (convert == null) convert = new JsonConvert(this, tiny);