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Prefect vs Kestra: catalog facts
Prefect	Kestra
Freemium Open source core is free; the hosted platform has a free start and paid plans.	Freemium The open-source edition is free; cloud and enterprise options are sold separately.
Web, Self-hosted, Command line	Web, Self-hosted
Plain Python decorators define flows and tasks Built-in retries and scheduling	Declarative workflows that are easy to review and version More than 2,000 plugins
Aimed at Python users Some features belong to the paid hosted platform	Built for teams, heavier than a simple scheduler Some features are aimed at enterprise plans
Self-hosted, Hosted service	Self-hosted, Hosted service
Open source	Open source
License: Apache-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.