Features:

• Users can upload a skin of their choosing to the server they're currently on through Filebin. Initial skin change is automatic, players will have to relog to see further changes. - /offlineskins upload
• Users can change their skin type (3px or 4px wide arms) - /offlineskins model wide or slim

Note: If Filebin is down or their storage is full, contact your server owner to manually put your skin on the server. Uploads directory is server_directory/offline_skin_uploads.