Simple, small and easy to use tool for calculating MD5 of texts and files.
Very simple, fast, low memory and battery consumption, supports **VERY LARGE** files.
Includes directory browser and file chooser.
NO ADS, no strange permissions!
操作简单，体积小，易于使用的工具，计算文本和文件的MD5。
很简单，速度快，低内存和电池消耗，支持**非常大**文件。
包括目录浏览器，文件选择。
没有广告，没有奇怪的权限！

- Added permission to read external storage. This is required on Android 4.4 and earlier versions in order to access and read files from sdcards.