What is Immudb used for?

Immudb is an immutable database with built-in cryptographic verification that works as a key-value, document or SQL store and keeps a tamper-evident history of changes. It is a good fit for tamper-evident audit logs, compliance record keeping, and verifiable storage of transactions and artifacts.

Is Immudb open source?

Yes. Immudb is open source under a custom licence. Its source code is on GitHub at codenotary/immudb and is written mainly in Go.

Yes. Immudb is open source, so the software itself is free to use under the terms of its own licence.

Can I self-host Immudb?

Yes. Immudb can be self-hosted on your own server or infrastructure.

What are some alternatives to Immudb?

Similar open-source tools in the Databases category include rqlite, Redis and etcd. SaaS products in the same category include Aerospike, Amazon Athena and Amazon DynamoDB.

Is Immudb actively maintained?

Yes. The most recent commit to Immudb was on 10 September 2026, and the latest release is v1.11.2, published on 3 September 2026. The project has 9k stars on GitHub.

Immudb: open-source databases

About Immudb

immudb is a database that bakes in cryptographic proof and verification. It records changes to sensitive data in a way that makes the history immutable: you can add new versions of a record but never change or delete existing ones, and clients can verify the integrity of the history without having to trust the database itself.

It can work as a key-value store, a document-model database or a relational SQL database, supporting transactions and blobs, and topics mention PostgreSQL compatibility, time travel and Merkle trees. Typical uses include tamper-evident log data, sensor data, transactions, software build recipes, rule-based data, artifacts and compliance records for regimes such as PCI DSS and GDPR. The project contrasts itself with blockchains by being fast and usable as a light service.

immudb can run on an IoT device, a notebook, a server, on-premises or in the cloud, and can be embedded in a Go application as a library without a server or container. It is written in Go, and the repository lists the licence as Other, so review the licence file. It suits teams needing audit trails and verifiable storage.

Key features

Immutable, append-only data history
Client-side cryptographic verification
Key-value, document and SQL models
Embeddable as a Go library
Time travel over data versions
Runs from IoT devices to servers

Good fit for

→Tamper-evident audit logs
→Compliance record keeping
→Verifiable storage of transactions and artifacts

Built with: Go
Tags: immutable-database; tamper-proof; audit-log; cryptography; compliance; key-value; sql; golang; zero-trust

Immudb: questions and answers

What is Immudb used for?: Immudb is an immutable database with built-in cryptographic verification that works as a key-value, document or SQL store and keeps a tamper-evident history of changes. It is a good fit for tamper-evident audit logs, compliance record keeping, and verifiable storage of transactions and artifacts.
Is Immudb open source?: Yes. Immudb is open source under a custom licence. Its source code is on GitHub at codenotary/immudb and is written mainly in Go.
Is Immudb free?: Yes. Immudb is open source, so the software itself is free to use under the terms of its own licence.
Can I self-host Immudb?: Yes. Immudb can be self-hosted on your own server or infrastructure.
What are some alternatives to Immudb?: Similar open-source tools in the Databases category include rqlite, Redis and etcd. SaaS products in the same category include Aerospike, Amazon Athena and Amazon DynamoDB.
Is Immudb actively maintained?: Yes. The most recent commit to Immudb was on 10 September 2026, and the latest release is v1.11.2, published on 3 September 2026. The project has 9k stars on GitHub.