10 Best Tools for Cloud Cost Optimization

CloudZone
December 14, 2025
min
Table of contents

Let’s face it:  Cloud bills can get out of control fast. Surprise spikes from forgotten resources, underused commitments, and hard-to-allocate shared spend are no longer “just a finance issue”. They impact engineering, operations, and business planning.

This list covers 10 widely used tools that help teams improve visibility, automate optimization, and connect cloud spend to business drivers across AWS, Azure, GCP, Kubernetes, and more.

1. CloudZero: Engineering-Driven Cost Visibility

CloudZero focuses on unit cost, helping teams understand cost per customer, feature, or deployment.

Why it stands out: Cost anomaly alerts, strong cost context, and less dependency on perfect tagging.
Best for: SaaS teams aligning engineering decisions with finance and product.

2. nOps: AWS Optimization Automation

nOps focuses on automation for commitment management, right-sizing, and ongoing optimization across AWS, including containers.

Why it stands out: Automation for optimization workflows, including guided and policy-based right-sizing.
Best for: Teams that want continuous optimization with minimal manual effort.

3. Finout: Cost Allocation Without Tagging Rework

Finout emphasizes cost allocation with virtual tagging and normalized billing views across cloud and SaaS spend.

Why it stands out: Instant Virtual Tags and allocation for shared costs without changing infrastructure tags.
Best for: Multi-team, multi-cloud environments where allocation is the main blocker.

4. CloudPilot AI: Spot Optimization for Kubernetes

CloudPilot AI focuses on Spot optimization and Kubernetes cost controls.

Why it stands out: The vendor claims advanced Spot interruption prediction (up to 45 minutes) to reduce operational risk.
Best for: Kubernetes-heavy teams optimizing Spot usage while maintaining stability.

5. VMware Tanzu CloudHealth: Enterprise Governance and Chargeback

CloudHealth is built for organizations that need governance, reporting, and financial controls across multiple clouds.

Why it stands out: Policies, reporting, and enterprise chargeback capabilities.
Best for: Mature FinOps programs with strict governance requirements.

6. AWS Cost Explorer: The Native Baseline

Cost Explorer is built into AWS Billing and Cost Management and supports analysis and forecasting.

Why it stands out: Quick visibility into spend trends and a baseline for commitment planning.
Best for: Small teams, or as a foundational layer alongside third-party tools.

7. Spot by NetApp: Continuous Infrastructure Optimization

Spot automates scaling and workload placement across Spot, Reserved, and On-Demand, including Kubernetes and ECS.

Why it stands out: Automation for capacity decisions and continuous optimization.
Best for: Teams that want ongoing optimization without heavy operational overhead.

8. Datadog: Observability With Cost Insights

Datadog adds cost visibility to an observability workflow, especially for Kubernetes.

Why it stands out: Cost alerts and cost views alongside performance signals.
Best for: DevOps teams already running Datadog and wanting cost integration into operations.

9. CAST AI: Kubernetes-First Optimization

CAST AI is focused on Kubernetes cost and performance optimization through autoscaling and workload placement.

Why it stands out: Kubernetes-specific optimization and fast deployment in many environments.
Best for: Organizations running significant container workloads.

10. Zesty: Storage and Discount Automation

Zesty focuses on automated optimization in specific cost areas, including storage.

Why it stands out: Automated resizing for Amazon EBS capacity for cost efficiency and performance consistency.
Best for: Teams looking to reduce storage waste without day-to-day manual tuning.

FAQs

Which cloud cost tool is best for Kubernetes?

Tools like CAST AI, Spot by NetApp, and CloudPilot AI are designed for Kubernetes environments, offering features beyond general-purpose cost tools.

Can I use these tools for multi-cloud environments?

Yes. Platforms like Finout, CloudHealth, and CloudZero support multi-cloud reporting and allocation.

Do these tools require manual tagging?

Tagging still helps, but some tools reduce reliance on it through virtual tagging or alternate allocation methods.

Is AWS Cost Explorer enough for a large enterprise?

Usually not. Large environments often need deeper allocation, governance, and automation beyond native tooling.

How much can teams typically reduce waste?

Results vary by maturity and execution. Most gains come from prioritizing top spend drivers, improving allocation, and operationalizing commitments and right-sizing.

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