diff --git a/goextVersion.go b/goextVersion.go
index c9573cd..2d1eaec 100644
--- a/goextVersion.go
+++ b/goextVersion.go
@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.354"
+const GoextVersion = "0.0.355"
 
-const GoextVersionTimestamp = "2024-01-05T07:21:43+0100"
+const GoextVersionTimestamp = "2024-01-05T10:25:05+0100"
diff --git a/sq/converter.go b/sq/converter.go
index 779046e..9583327 100644
--- a/sq/converter.go
+++ b/sq/converter.go
@@ -1,6 +1,7 @@
 package sq
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
@@ -76,6 +77,34 @@ var ConverterRFC339NanoTimeToString = NewDBTypeConverter[rfctime.RFC3339NanoTime
 	return rfctime.NewRFC3339Nano(t), nil
 })
 
+var ConverterJsonObjToString = NewDBTypeConverter[JsonObj, string](func(v JsonObj) (string, error) {
+	mrsh, err := json.Marshal(v)
+	if err != nil {
+		return "", err
+	}
+	return string(mrsh), nil
+}, func(v string) (JsonObj, error) {
+	var mrsh JsonObj
+	if err := json.Unmarshal([]byte(v), &mrsh); err != nil {
+		return JsonObj{}, err
+	}
+	return mrsh, nil
+})
+
+var ConverterJsonArrToString = NewDBTypeConverter[JsonArr, string](func(v JsonArr) (string, error) {
+	mrsh, err := json.Marshal(v)
+	if err != nil {
+		return "", err
+	}
+	return string(mrsh), nil
+}, func(v string) (JsonArr, error) {
+	var mrsh JsonArr
+	if err := json.Unmarshal([]byte(v), &mrsh); err != nil {
+		return JsonArr{}, err
+	}
+	return mrsh, nil
+})
+
 type dbTypeConverterImpl[TModelData any, TDBData any] struct {
 	dbTypeString    string
 	modelTypeString string
diff --git a/sq/database.go b/sq/database.go
index 529c8cf..12f4b0f 100644
--- a/sq/database.go
+++ b/sq/database.go
@@ -148,4 +148,6 @@ func (db *database) RegisterDefaultConverter() {
 	db.RegisterConverter(ConverterRFCUnixTimeToUnixSeconds)
 	db.RegisterConverter(ConverterRFC339TimeToString)
 	db.RegisterConverter(ConverterRFC339NanoTimeToString)
+	db.RegisterConverter(ConverterJsonObjToString)
+	db.RegisterConverter(ConverterJsonArrToString)
 }
diff --git a/sq/json.go b/sq/json.go
new file mode 100644
index 0000000..4b66c36
--- /dev/null
+++ b/sq/json.go
@@ -0,0 +1,5 @@
+package sq
+
+type JsonObj map[string]any
+
+type JsonArr []any