diff --git a/callback_query.go b/callback_query.go
index b86f41f0..6e592ac9 100644
--- a/callback_query.go
+++ b/callback_query.go
@@ -52,7 +52,7 @@ func Query(scope *Scope) {
 			columns, _ := rows.Columns()
 			var values []interface{}
 			for _, value := range columns {
-				field := elem.FieldByName(snakeToUpperCamel(strings.ToLower(value)))
+				field := elem.FieldByName(SnakeToUpperCamel(strings.ToLower(value)))
 				if field.IsValid() {
 					values = append(values, field.Addr().Interface())
 				} else {
diff --git a/scope.go b/scope.go
index 65f85f41..05e45fc7 100644
--- a/scope.go
+++ b/scope.go
@@ -96,7 +96,7 @@ func (scope *Scope) PrimaryKeyValue() interface{} {
 	data := reflect.Indirect(reflect.ValueOf(scope.Value))
 
 	if data.Kind() == reflect.Struct {
-		if field := data.FieldByName(snakeToUpperCamel(scope.PrimaryKey())); field.IsValid() {
+		if field := data.FieldByName(SnakeToUpperCamel(scope.PrimaryKey())); field.IsValid() {
 			return field.Interface()
 		}
 	}
@@ -121,7 +121,7 @@ func (scope *Scope) SetColumn(column string, value interface{}) {
 	}
 
 	data := reflect.Indirect(reflect.ValueOf(scope.Value))
-	setFieldValue(data.FieldByName(snakeToUpperCamel(column)), value)
+	setFieldValue(data.FieldByName(SnakeToUpperCamel(column)), value)
 }
 
 // CallMethod invoke method with necessary argument
@@ -196,7 +196,7 @@ func (scope *Scope) TableName() string {
 			}
 		}
 
-		str := toSnake(data.Type().Name())
+		str := ToSnake(data.Type().Name())
 
 		if !scope.db.parent.singularTable {
 			for index, reg := range pluralMapKeys {
@@ -246,7 +246,7 @@ func (scope *Scope) Fields() []*Field {
 
 		var field Field
 		field.Name = fieldStruct.Name
-		field.DBName = toSnake(fieldStruct.Name)
+		field.DBName = ToSnake(fieldStruct.Name)
 
 		value := indirectValue.FieldByName(fieldStruct.Name)
 		field.Value = value.Interface()
diff --git a/scope_private.go b/scope_private.go
index 6a46eb80..6298c3d7 100644
--- a/scope_private.go
+++ b/scope_private.go
@@ -266,7 +266,7 @@ func (scope *Scope) updatedAttrsWithValues(values map[string]interface{}, ignore
 	}
 
 	for key, value := range values {
-		if field := data.FieldByName(snakeToUpperCamel(key)); field.IsValid() {
+		if field := data.FieldByName(SnakeToUpperCamel(key)); field.IsValid() {
 			func() {
 				defer func() {
 					if err := recover(); err != nil {
@@ -400,7 +400,7 @@ func (scope *Scope) related(value interface{}, foreignKeys ...string) *Scope {
 		if foreignValue, ok := scope.FieldByName(foreignKey); ok {
 			return toScope.inlineCondition(foreignValue).callCallbacks(scope.db.parent.callback.queries)
 		} else if toScope.HasColumn(foreignKey) {
-			sql := fmt.Sprintf("%v = ?", scope.Quote(toSnake(foreignKey)))
+			sql := fmt.Sprintf("%v = ?", scope.Quote(ToSnake(foreignKey)))
 			return toScope.inlineCondition(sql, scope.PrimaryKeyValue()).callCallbacks(scope.db.parent.callback.queries)
 		}
 	}
@@ -489,7 +489,7 @@ func (scope *Scope) getPrimaryKey() string {
 
 		// if primaryKey tag found, return column name
 		if fieldStruct.Tag.Get("primaryKey") != "" {
-			return toSnake(fieldStruct.Name)
+			return ToSnake(fieldStruct.Name)
 		}
 	}
 
diff --git a/utils.go b/utils.go
index b0854ff3..d1587660 100644
--- a/utils.go
+++ b/utils.go
@@ -32,7 +32,7 @@ func (s *safeMap) Get(key string) string {
 
 func FieldByName(name string, value interface{}, withAddr ...bool) (interface{}, bool) {
 	data := reflect.Indirect(reflect.ValueOf(value))
-	name = snakeToUpperCamel(name)
+	name = SnakeToUpperCamel(name)
 
 	if data.Kind() == reflect.Struct {
 		if field := data.FieldByName(name); field.IsValid() {
@@ -60,7 +60,7 @@ func newSafeMap() *safeMap {
 var smap = newSafeMap()
 var umap = newSafeMap()
 
-func toSnake(u string) string {
+func ToSnake(u string) string {
 	if v := smap.Get(u); v != "" {
 		return v
 	}
@@ -78,7 +78,7 @@ func toSnake(u string) string {
 	return s
 }
 
-func snakeToUpperCamel(s string) string {
+func SnakeToUpperCamel(s string) string {
 	if v := umap.Get(s); v != "" {
 		return v
 	}
@@ -154,7 +154,7 @@ func convertInterfaceToMap(values interface{}) map[string]interface{} {
 	switch value := values.(type) {
 	case map[string]interface{}:
 		for k, v := range value {
-			attrs[toSnake(k)] = v
+			attrs[ToSnake(k)] = v
 		}
 	case []interface{}:
 		for _, v := range value {
@@ -168,7 +168,7 @@ func convertInterfaceToMap(values interface{}) map[string]interface{} {
 		switch reflectValue.Kind() {
 		case reflect.Map:
 			for _, key := range reflectValue.MapKeys() {
-				attrs[toSnake(key.Interface().(string))] = reflectValue.MapIndex(key).Interface()
+				attrs[ToSnake(key.Interface().(string))] = reflectValue.MapIndex(key).Interface()
 			}
 		default:
 			scope := Scope{Value: values}