# Utils Overview<a name="EN-US_TOPIC_0000001060172974"></a>

The Utils library stores basic OpenHarmony components that are commonly used by OpenHarmony service subsystems and upper-layer applications.

This library provides the following capabilities on different platforms:

-  LiteOS Cortex-M \(Hi3861 platform\): KV store, file operations, IoT peripheral control, and system attribute dumping

-  LiteOS Cortex-A \(Hi3516 or Hi3518 platform\): KV store, timer, JavaScript APIs for data and file storage, and system attribute dumping