# Command Line Tools

Besides the general [commandline interface](/duplicati-programs/command-line-interface-cli.md), Duplicati ships with a number of supporting commandline tools. Besides ServerUtil, each of the tools are intended to be used in special circumstances, outside the expected normal operation of Duplicati.

[BackendTester](/duplicati-programs/command-line-interface-cli-1/backendtester.md), [Snapshots](/duplicati-programs/command-line-interface-cli-1/snapshots.md), [AutoUpdater](/duplicati-programs/command-line-interface-cli-1/autoupdater.md), and [SecretTool](/duplicati-programs/command-line-interface-cli-1/secrettool.md) are intended to be used for testing functionality on the actual setup, ahead of making changes or running backups.

The [BackendTool](/duplicati-programs/command-line-interface-cli-1/backendtool.md) and [SharpAESCrypt](/duplicati-programs/command-line-interface-cli-1/sharpaescrypt.md) tools are intended to work directly with the remote storage files.

The [RecoveryTool](/duplicati-programs/command-line-interface-cli-1/recoverytool.md) can work directly with the remote storage without using the regular Duplicati code, and can both recover files from a damaged remote destination, but also re-upload existing files.

The [SyncTool](/duplicati-programs/command-line-interface-cli-1/synctool.md) is used for mirroring a backup from one backend to another, which is useful for increasing redundancy.


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