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Dagster vs Dagu: catalog facts
Dagster	Dagu
Freemium The open-source core is free; Dagster+ is a paid hosted service.	Free Free to download and self-host; the source is published on GitHub.
Web, Self-hosted	Self-hosted, Command line
Asset-based model with lineage and freshness tracking Self-hostable open-source core	Single binary with no database to set up Declarative YAML workflows over existing scripts and commands
Aimed at data engineering teams, not general automation Announced merger with Prefect makes the roadmap uncertain	Workflows must be written in YAML You host and maintain the server yourself
Self-hosted, Hosted service	Downloadable app, Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account 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.