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Keep vs karma: catalog facts
Keep	karma
Free The open-source edition is free to self-host; the repository also contains an enterprise…	Free Free and open source with no paid tier.
Web, Self-hosted	Linux, Web, Self-hosted
Deduplicates and correlates alerts from several monitoring sources Docker Compose files for several deployment setups	Groups alerts to make large outages readable Web interface for creating and managing silences
Running it means operating your own server stack Some features sit in a separate enterprise folder	Only useful alongside Prometheus Alertmanager Requires Alertmanager 0.22.0 or newer
Self-hosted	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.