Kestra

Open SourceApache-2.0Self-hostable

Declarative, event-driven orchestration for serious pipelines — define workflows in YAML, run any language, and scale from one cron job to millions of executions.

Open source alternative to

n8n

Airflow

Visit Kestra View source

About Kestra

Kestra sits where automation grows up into orchestration. Workflows are declared in YAML — versionable, reviewable, generated by AI if you like — and triggered by schedules, webhooks, file arrivals or messages from Kafka and friends. Each step can run any language in isolated containers.

That declarative core is what separates it from n8n: your automation lives in Git like the rest of your infrastructure, with a slick UI layered on top for topology views, live logs, backfills and replays. Data teams use it as a friendlier Airflow; platform teams use it as an event backbone.

It's Apache-2.0 licensed with one of the fastest-growing communities in the space, and scales horizontally — the same engine that runs your nightly report can run millions of executions across workers.

Key features

Workflows as YAML — Declarative definitions that live in Git — reviewable, diffable and environment-promotable.
Event-driven triggers — Schedules, webhooks, file detection, Kafka/Pulsar messages — react to anything, not just cron.
Any language, isolated — Run Python, R, Node, Shell, SQL and more in containerized task runners.
Built to scale — Horizontal workers, high-availability setups and 600+ plugins for data systems.

How to install Kestra

The honest read

What we like

Declarative YAML — automation as reviewable code
Handles data-pipeline scale n8n can't
Genuinely event-driven, not just scheduled
600+ plugins across databases, clouds and queues
Apache-2.0 with rapid, well-funded development

Worth knowing

Overkill for simple app-to-app automations
JVM-based — heavier baseline than Node tools
YAML-first approach has its own learning curve
Some enterprise features (SSO, RBAC) are paid

FAQ

Is Kestra free?

The core platform is free and Apache-2.0 licensed with no execution limits. An Enterprise Edition adds SSO, RBAC, audit and high-availability features.

Kestra vs n8n — which do I need?

n8n for business users wiring SaaS apps together; Kestra when workflows become infrastructure — data pipelines, event processing, anything that needs Git versioning, backfills and scale.

Is Kestra a good Airflow alternative?

Yes — that's its home turf. You get Airflow-class orchestration with a modern UI, YAML instead of Python DAGs, real event triggers and much simpler operations.

Can I self-host Kestra?

Yes — a single docker-compose for evaluation, and Kubernetes (official Helm chart) for production deployments.