Offline reading lists in Safari were introduced in iOS 6 to help you tackle those “read later” articles without having to resort to a third-party read-later app. Offline reading lists synced via iCloud so you can access them via all your connected devices. If you saved an article on your iPhone, you could read that from your iPad later.
We covered a bit about Offline Reading lists in this post but what if you wanted to remove all reading lists at once? That's what we wanted to cover.
Safari offers a kill switch to delete all entries in your Offline Reading list at once. Why would someone want to do it, by the way? Offline Reading lists occupy space, that could one reason. Safari can feel slow or sluggish with a lot of stored data. And Offline Reading lists contribute to data.
How to Delete All Offline Reading Lists at Once in Safari on iPhone/iPad
Step #1. Open Settings.
Step #2. Go to General → Usage.
Step #3. From the apps list, tap on Safari (you might have to tap on Show All Apps first.)
Step #4. Tap on ‘Edit.'
Step #5. Tap on the red ‘-‘ sign next to Offline Reading list and then on Delete.
Step #6. That's about it: this deletes the whole offline reading list stored in Safari/iCloud.
Note that when you delete this on your iPhone, all the reading list items are deleted from your iCloud account. Which means you won't be able to access them from any other device that's connected to your iCloud account.
Like stated before, deleting Offline Reading lists can come in handy when you feel that Safari lags. Also, if you are a power-user of the offline reading list feature, you might need to use this feature every once in a while just to keep your iPhone free of a few MBs of space.