localStorage Info

Get to know localStorage size & more

Installation

Install via NPM or yarn:

npm i localStorage-info

Usage

import { getInfo } from 'localStorage-info';
console.log(getInfo());

The output is like:

{
  support: true,            // support localStorage
  size: 5242880,            // full size in bytes
  humanSize: '5.00 MB',     // full size in human readable format
  usedSize: 1703936,        // used size in bytes
  humanUsedSize: '1.63 MB', // used size in human readable format
  usedPercentage: '32.50%', // percentage of used size
  freeSize: 3538944,        // free size in bytes
  humanFreeSize: '3.38 MB', // free size in human readable format
  freePercentage: '67.50%'  // percentage of free size
}

The size of latest version of Chrome and Firefox are approximately 5 MB, Safari is 2.5 MB, but that's not quite accurate, such as Firefox 31 size is 5242975 bytes, while Firefox 38 is 5242880 bytes

Caveats:

This library get localStorage size by adding data in localStorage, so it may be slow, usually 0.1 second to run. So you may not use it in crucial application.

License

MIT