The Flight Recorder for Your Business

Tell Me Why?

ReckonDB revolutionizes event sourcing by removing the complexity that has traditionally kept this powerful pattern out of reach for many development teams.

While event sourcing offers incredible benefits like complete audit trails, temporal queries, and the ability to rebuild state from any point in time, implementing it has required significant expertise and custom infrastructure.

ReckonDB changes that by providing:

Intuitive configuration that gets you running in minutes
Built on the BEAM — the Erlang runtime behind WhatsApp and Discord — and on Khepri/Ra, the Raft library RabbitMQ uses
Raft-replicated clustering with automatic node discovery (UDP multicast or Kubernetes DNS)
No PaaS lock-in - deploy on-premise or in your own cloud

Explore Features

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How to build on ReckonDB

A process-centric method — model every business process as a dossier of facts moving across desks.

Explore the methodology →

Come Together

ReckonDB is an open-source initiative built by the community, for the community — free to run, anywhere, forever, with no feature gates.

Join the developers building the future of event sourcing: open an issue, send a patch, or just come say hello. If it's useful to you, sponsorship keeps the work independent.

Support the project