Douklar 4.0.0, 23 October 2026.A new CLI, douklar, and retry of unfinished objects from a finished S3 Batch job.Read the release notes

Douklar

Douklar and AWS Backup

AWS Backup keeps restorable copies inside one Organization; Douklar moves selected data between accounts that may not share one.

Douklar console Sync page: a Scope, Review, Run stepper with a cross-account source account and one selected target account.Douklar console Sync page: a Scope, Review, Run stepper with a cross-account source account and one selected target account.

Sync

  • Every run goes through three steps: choose the scope, review the plan, then run it.

  • Pick the mode. Regions for ECR, CodeCommit and DynamoDB are set here; S3 bucket Regions are found for you.

  • One run can copy to more than one target account.

Captured from the console with sample data.

Which to use

AWS Backup
Use AWS Backup for backup and recovery.
Douklar
Use Douklar to move data into another account, once, including across owners.

What it does

AWS Backup takes and restores backups on a schedule, with retention rules and vaults, and can copy backups to another account in the same Organization.

Where it is the better tool

  • Retention, vaults and restore are what it is built for.
  • Backups are managed by AWS with no host to run.

Where Douklar is different

  • AWS Backup cross-account copy stops at the Organization boundary. Douklar holds one profile per account, and its worker relay needs no cross-account grant.
  • Douklar maps sources to destinations, renames them, and promotes data into accounts that are already in use. Backup restores what it saved.

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