Windmill vs Kestra(2026)
Windmill is better for teams that need excellent for internal tooling. Kestra is the stronger choice if strong data engineering use case. Windmill is open-source (from $0) and Kestra is open-source (from $0).
Full feature breakdown, pricing details, and pros & cons below.
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Windmill
Windmill is an open-source developer platform to build internal tools, workflows, and scripts. Write scripts in Python/TypeScript, chain them visually, and share with your team.
Starting at $0
Visit WindmillKestra
Kestra is a declarative, YAML-based orchestration platform for data pipelines and workflows. Define flows as code, schedule them, and monitor executions — fully open source and self-hostable.
Starting at $0
Visit KestraHow Do Windmill and Kestra Compare on Features?
| Feature | Windmill | Kestra |
|---|---|---|
| Pricing model | open-source | open-source |
| Starting price | $0 | $0 |
| Open source | ✓ | ✓ |
| Script editor (Python/TS/Go/Bash) | ✓ | — |
| Visual flow builder | ✓ | — |
| Auto-generated UIs | ✓ | — |
| Job queuing | ✓ | — |
| Secret management | ✓ | — |
| Self-hostable | ✓ | — |
| YAML-based flows | — | ✓ |
| 400+ plugins | — | ✓ |
| Kafka/Postgres triggers | — | ✓ |
| Retry strategies | — | ✓ |
| Namespace isolation | — | ✓ |
| Enterprise SSO | — | ✓ |
Windmill Pros and Cons vs Kestra
Windmill
Kestra
Should You Use Windmill or Kestra?
Choose Windmill if…
- •Excellent for internal tooling
- •Auto-generates UIs from scripts
- •Free self-hosted
Choose Kestra if…
- •Strong data engineering use case
- •Git-friendly YAML flows
- •Excellent scheduling