diff --git a/browser/lib/findStorage.js b/browser/lib/findStorage.js
new file mode 100644
index 00000000..98d48236
--- /dev/null
+++ b/browser/lib/findStorage.js
@@ -0,0 +1,14 @@
+const _ = require('lodash')
+
+export function findStorage (storageKey) {
+  const cachedStorageList = JSON.parse(localStorage.getItem('storages'))
+  if (!_.isArray(cachedStorageList)) throw new Error('Target storage doesn\'t exist.')
+  const storage = _.find(cachedStorageList, {key: storageKey})
+  if (storage === undefined) throw new Error('Target storage doesn\'t exist.')
+
+  return storage
+}
+
+export default {
+  findStorage
+}