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Cloud cost optimization tools

The tools that reduce the cloud bill, how each one works and which clouds it supports.

Tools that reduce cloud cost

Kubernetes

Coral by ZoorikRebalances workloads onto fewer, cheaper machines.Acts on its own

Cast AIAutomates rightsizing, node autoscaling, Spot use and bin-packing.Acts on its own+ Google Cloud

ScaleOpsSelf-hosted; rightsizes pods in real time and manages replicas and nodes.Acts on its own+ Google Cloud

PerfectScale by DoiTApplies pod sizing automatically and tunes Karpenter settings.Acts on its own+ Google Cloud

KubexSizes pods at admission, tunes HPAs and recommends node types.Acts on its own+ Google Cloud

StormForge by CloudBoltMachine-learning rightsizing of container requests and limits.Acts on its own+ Google Cloud

Spot OceanBin-packs pods and mixes Spot, reserved and on-demand capacity.Acts on its own+ Google Cloud

KarpenterLaunches right-fit nodes and consolidates onto fewer or cheaper ones.Acts on its own+ Google Cloud

Kubernetes Cluster AutoscalerAdds nodes for pending pods and removes underused ones.Acts on its own+ Google Cloud

Vertical Pod Autoscaler (VPA)Recommends pod CPU and memory requests and can apply them.Acts and recommends

Block storage

Amoeba by ZoorikRightsizes Azure managed disks and Amazon EBS, without any downtime.Acts on its own

Lucidity Disk AutoScalerGrows and shrinks live cloud disks with an agent.Acts on its own+ Google Cloud

Datafy EBS AutoScalerGrows and shrinks Amazon EBS volumes on EC2 and EKS.Acts on its own

Zesty DiskGrows or shrinks an EC2 filesystem by adding and removing EBS volumes.Acts on its own

SedaiPicks EBS types and Azure disk tiers from usage; flags unattached disks.Acts and recommends

FinOps

IBM KubecostKubernetes cost allocation with rightsizing advice and automation.Acts and recommends+ Google Cloud

VantageAllocates costs, recommends savings and can buy Savings Plans.Acts and recommends+ Google Cloud

ProsperOpsManages commitment discounts autonomously on AWS, Azure and Google Cloud.Acts and recommends+ Google Cloud

nOpsBuys and manages RIs, Savings Plans and CUDs automatically.Acts and recommends+ Google Cloud

Xosphere IQAutonomous Spot orchestration on AWS and GCP.Acts on its own+ Google Cloud

Cloud CustodianOpen-source rules that stop, retype, tag or delete cloud resources.Acts on its own+ Google Cloud

Cloud providers

Azure AdvisorFree Azure service that recommends cost and other improvements.Recommends

AKS node auto-provisioning (NAP)Provisions VM sizes for pending pods and removes underused nodes.Acts on its own

AWS Compute OptimizerRecommends rightsizing and flags idle resources.Acts and recommends

AWS Cost Optimization HubGathers rightsizing, idle and commitment advice across accounts.Recommends

Amazon EKS Auto ModeAWS manages compute autoscaling for EKS, on Karpenter.Acts on its own

Checked on each company’s own pages, 19 October 2026. Names are their owners’ trademarks. Something changed? Write to founders@zoorik.com.

Compare Coral and Amoeba

Coral vs StormForgeWhat each one does for Kubernetes cost on Azure and AWS, side by side.

Amoeba vs Zesty DiskWhat each one does for block storage cost on Azure and AWS, side by side.

Coral alternatives: Kubernetes cost tools comparedEvery way to reduce Kubernetes cost on AKS and EKS, and how each one acts.

Amoeba alternatives: block storage tools comparedEvery way to right-size Azure managed disks and Amazon EBS, and how each one acts.

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Talk to the builders

Thirty minutes with the people who build Coral and Amoeba.

Or write to founders@zoorik.com