Quickly batch convert beatmaps to your desired keys, supporting 4 to 20 keys. Simply drag and drop folders or files into the window for conversion. With preset options, even beginners can easily use it. 快速，批量转换beatmaps成你想要的keys，支持4到20keys. 只需要把文件夹或者文件们拖拽入窗口即可完成转谱。有预设方法，即使不会设置的人也能轻松上手。