Streaming SQL that feels like Postgres.

OpenDera maintains your materialized views incrementally as data changes — no batch recompute, no Lambda-architecture duct tape. Define your pipeline as a set of SQL views; we keep them fresh.

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Why OpenDera?

Full SQL

Joins, aggregates, window functions, recursive CTEs — all incrementally maintained against streaming input.

One SQL, batch & stream

The same query runs over historical and live data with bit-for-bit consistent results. No dual codebase.

Live DDL

ALTER TABLE ... ADD COLUMN auto-migrates the pipeline with zero downtime, classified at the IR level.

MIT, every feature

A fork of Feldera with the proprietary enterprise features built back in — clean-room, in the open. No license keys, no gated features.

Serverless cloud

Hosted on Fly.io: pay only when your pipeline processes events. Suspended pipelines = $0 compute. Sub-second resume.

Bring-your-own-cloud

Don't want a managed plane? Run the same engine on your own Fly / K8s / Docker. Same binary, same UX.

Get started

# Self-hosted, all the features
docker compose up

# Or sign up for the managed cloud
open https://opendera.com/signup