diff --git a/object/include/blue/object/string.h b/object/include/blue/object/string.h
index 1e5aa62..16a7af4 100644
--- a/object/include/blue/object/string.h
+++ b/object/include/blue/object/string.h
@@ -39,6 +39,7 @@ static inline void b_string_release(b_string *str)
 }
 BLUE_API char *b_string_steal(b_string *str);
 BLUE_API b_status b_string_reserve(b_string *str, size_t capacity);
+BLUE_API b_status b_string_replace_all(b_string *str, const char *new_data);
 
 BLUE_API void b_string_append_s(b_string *dest, const b_string *src);
 BLUE_API void b_string_append_cstr(b_string *dest, const char *src);
diff --git a/object/string.c b/object/string.c
index 8474cb6..4270978 100644
--- a/object/string.c
+++ b/object/string.c
@@ -197,6 +197,18 @@ b_status b_string_reserve(struct b_string *str, size_t capacity)
 	return err == 0 ? B_SUCCESS : B_ERR_NO_MEMORY;
 }
 
+b_status b_string_replace_all(b_string *str, const char *new_data)
+{
+	size_t new_len = strlen(new_data);
+	b_string_reserve(str, new_len);
+	char *dest = (char *)b_string_ptr(str);
+	memcpy(dest, new_data, new_len);
+	dest[new_len] = '\0';
+	str->s_len = new_len;
+
+	return B_SUCCESS;
+}
+
 static void string_insert(
 	struct b_string *dest, const char *src, size_t len, size_t at)
 {