OpenCost

OpenCost is an open-source, vendor-neutral platform that delivers real-time Kubernetes and cloud cost monitoring for modern, cloud-native environments. It provides granular cost allocation down to container level, supports dynamic pricing via AWS, Azure, and GCP billing integrations, and covers both in-cluster and external cloud services. Targeted at FinOps teams, platform engineers, and developers, OpenCost enables accurate showback/chargeback, unified IT spend visibility via plugins, and is forever free and community-maintained.