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Alerta vs Robusta: catalog facts
Alerta	Robusta
Free Free and open source.	Free The open-source project is free to install in your own cluster.
Web, Self-hosted, Command line	Self-hosted
Deduplicates alerts from many monitoring sources Wide range of ready-made integrations	Groups related Prometheus alerts to cut noise Adds cluster context to each alert
Needs a server and database to run Homepage content has not been updated in some time	Only relevant for Kubernetes and Prometheus setups AI enrichment features may depend on external services
Self-hosted	Self-hosted
Open source	Open source
License not stated	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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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