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Diun vs What's Up Docker: catalog facts
Diun	What's Up Docker
Free Free and open source under the MIT license; donations accepted.	Free Free and open source under the MIT licence.
Self-hosted, Command line	Web, Self-hosted
Detects both new tags and digest changes Runs as a single binary or a container	Supports Docker, Compose, Swarm, Kubernetes and Nomad Works with most public registries and self-hosted OCI registries
Notifies only; does not update containers itself Configuration is file-based with no graphical interface	Needs to run as its own container or service Automatic updates can break setups if images change behaviour
Downloadable app, Self-hosted	Self-hosted
Open source	Open source
License: MIT	License: MIT
No account needed	Not stated if an account is needed
Needs internet	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.