Discord LocalStorage back-up tool

localStorageBackup.js

(() => {
  let iframe = document.createElement('iframe')
  document.body.appendChild(iframe)
  const ls = iframe.contentWindow.localStorage
  window.localStorageBackup = {}
  window.localStorageBackup.localStorage = ls
  window.localStorageBackup.export = (showOutput = false, copy = true) => {
    if (copy) {
      DiscordNative.clipboard.copy(
        JSON.stringify(ls)
          .replace(/\\/g, '\\\\')
      )
      console.log("%c[LocalStorageBackup]%c Copied localStorage to clipboard", "color:#7289da", "")
    }
    if (showOutput) console.log(JSON.stringify(ls))
  }
  window.localStorageBackup.import = (lsString) => {
    const dump = JSON.parse(lsString)
    for (const key in dump)
      ls.setItem(key, dump[key])
    console.log("%c[LocalStorageBackup]%c Imported localStorage", "color:#7289da", "")
  }
})()