description Amazon QLDB Overview
Amazon QLDB is a fully managed operational database service in the AWS Cloud that provides transactional consistency and strong durability for applications requiring high availability and predictable performance characteristics.
help Amazon QLDB FAQ
What was Amazon QLDB designed to do?
Amazon Quantum Ledger Database was a fully managed ledger database with an immutable, cryptographically verifiable transaction log. It used a central trusted authority, so it was not a public blockchain.
Can a new application still use Amazon QLDB?
No, AWS completed the full shutdown of Amazon QLDB on July 31, 2025. As of 2026, it is no longer an available or supported AWS service.
Which technologies did Amazon QLDB use for records and verification?
QLDB supported PartiQL for queries and Amazon Ion for document-style data. Its journal used hash chaining with SHA-256 so applications could verify whether recorded history had been altered.
What did AWS recommend for applications migrating away from QLDB?
AWS documentation pointed existing customers toward Amazon Aurora PostgreSQL as a migration destination. Teams planning a new system should choose a currently supported database instead of building around QLDB.
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