compare

Prefect vs Windmill

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Prefect vs Windmill
Fact	Prefect	Windmill
Language	Python	Rust
Licence	Apache-2.0	Other
Stars	24k	18k
Latest	3.8.8	v1.825.0
Last push	2026-10-06	2026-10-06
Release cadence	too few releases	about 1 day between releases
Active contributors	51 commit authors on the default branch in the last 90 days	9+ commit authors on the default branch in the last 90 days
Flags	none	none

How they relate

Both replace Apache Airflow. Alternatives to Apache Airflow →
Full replacementPrefectWorkflows as plain Python functions with decorators, without DAG files.
PartialWindmillSchedules and runs workflows written as code.