# mongodump > Utility to export the contents of a MongoDB instance. > More information: . - Create a dump of all databases (this will place the files inside a directory called "dump"): `mongodump` - Specify an output location for the dump: `mongodump {{[-o|--out]}} {{path/to/directory}}` - Create a dump of a given database: `mongodump {{[-d|--db]}} {{database_name}}` - Create a dump of a given collection within a given database: `mongodump {{[-c|--collection]}} {{collection_name}} {{[-d|--db]}} {{database_name}}` - Connect to a given host running on a given port, and create a dump: `mongodump {{[-h|--host]}} {{host}} --port {{port}}` - Create a dump of a given database with a given username; user will be prompted for password: `mongodump {{[-u|--username]}} {{username}} {{database}} {{[-p|--password]}}` - Create a dump from a specific instance; host, user, password and database will be defined in the connection string: `mongodump --uri {{connection_string}}`