Amazon Quantum Ledger Database (QLDB)

Maintain an immutable, cryptographically verifiable log of data changes

Track and maintain a sequenced history of every application data change using an immutable and transparent journal.

Trust the integrity of your data. Built-in cryptographic verification enables third-party validation of data changes.

Build correct, event-driven systems with QLDB ACID transactions and support for real-time streaming to Amazon Kinesis.

Start small and pay only for what you use with serverless architecture that provides automatic storage and resource scaling.

How it works

Amazon Quantum Ledger Database (QLDB) is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log.
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Use cases

Store financial transactions

Create a complete and accurate record of all financial transactions, such as credit and debit transactions.

Reconcile supply chain systems

Record the history of each transaction and provide details of every batch manufactured, shipped, stored, and sold from facility to store.

Maintain claims history

Track a claim over its lifetime, and cryptographically verify data integrity to make the application resilient against data entry errors and manipulation.

Centralize digital records

Implement a system-of-record application to create a complete, centralized record of employee details such as payroll, bonus, and benefits.

How to get started

Find out how Amazon QLDB works

Build and support your ledger-like applications with a fully managed service.

Explore Amazon QLDB features »

Learn more about pricing


Pay only for what you use—no minimum fee or mandatory service usage.

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Get started with training


From development to enterprise-level programs, get the right support at the right time.

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