Offline Mode

DIM is designed to work offline - whether you don't have an internet connection, or if Bungie.net is down, you should still be able to view your inventory, including DIM Sync data such as tags and loadouts. You can also make updates to DIM Sync data such as tags and loadouts, and they will be synced to the server when you are next online.

In order for DIM to successfully load when you are offline, you must:

1. Load DIM while online. It's best to install DIM to make sure your browser doesn't evict it from cache. If your browser doesn't have DIM cached, you can't use it offline.
2. Load your Destiny inventory while online. While you're offline, you'll see the last version of your inventory and DIM Sync data that you successfully loaded before going offline.

Some things won't work while you're offline:

1. You won't be able to see changes to your inventory or DIM sync data that you've made on other devices.
2. You cannot move items or change sockets on items (change perks, insert mods) while offline.
3. You cannot equip loadouts while offline.

Lastly, DIM can fail to work when Bungie.net is not entirely down, but instead is responding to requests in some broken way. DIM is designed to handle Bungie.net's regular maintenance periods, but sometimes Bungie.net is broken in some interesting new way that DIM's code cannot anticipate, which means it doesn't fall back to offline mode. These situations are generally rare, and it's tough for the DIM team to predict them, or handle them afterwards since once Bungie.net is back, there are often no good records of the weird behavior during the outage.