Head to head
6 of 12 recorded facts differ. Everything below is source-reported with a capture date. Niched has not published a buyer verdict for this pair, so nothing here declares a winner. A winner only exists inside a defined buyer niche with stated constraints.
Event Driven Orchestration & Scheduling Platform for Mission Critical Applications. kestra is open source, written primarily in Java, released under Apache License 2.0. Its repository has 27.5K GitHub stars and 2.8K forks, and was last committed to within the last two weeks. Niched places it in Scheduling & booking.
Visit ↗Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.
Visit ↗| Fact | kestra | windmill |
|---|---|---|
| GitHub stars | 27.5K | 17.4K |
| Forks | 2.8K | 1.1K |
| Open issues | 517 | 807 |
| Last commit | yesterday | today |
| Primary language | Java | Rust |
| License | Apache License 2.0 | Other |
Both products are placed in No-code / low-code app builders. A category organises the market; it carries no score. See all kestra alternatives.