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OpenCost

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Open-source cost monitoring and allocation for cloud-native Kubernetes environments.

Free, no paid tier
Free Cloud & Infrastructure Analytics DevOps Monitoring
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Tracked since 2026

The Bottom Line

Price
Free, no paid tier. Compare plans

Key facts

  • Provides real-time, granular cost allocation for Kubernetes down to the container level.
  • Integrates with AWS, Azure, and GCP for dynamic pricing, and supports on-prem clusters.
  • Monitors both in-cluster and out-of-cluster cloud resource costs.

Pros

  • Provides highly granular cost visibility within Kubernetes environments.
  • Supports multi-cloud and hybrid cloud deployments with on-premise capabilities.
  • Being open-source, it offers transparency and community-driven development.
  • Integrates with existing cloud billing APIs for accurate pricing data.

Cons

  • Requires Kubernetes expertise for deployment and configuration.
  • May require additional setup for comprehensive cost monitoring of non-Kubernetes resources.
  • Relies on community support for troubleshooting and advanced use cases.

What is OpenCost?

OpenCost provides flexible and customizable cost allocation and cloud resource monitoring specifically designed for Kubernetes and cloud-native environments. It enables accurate showback, chargeback, and ongoing reporting by breaking down costs to the container level within Kubernetes. The tool integrates with major cloud providers like AWS, Azure, and GCP to pull dynamic asset pricing via their billing APIs. It also supports on-prem Kubernetes clusters through custom pricing configurations. OpenCost monitors costs for in-cluster resources such as CPU, GPU, memory, load balancers, and persistent volumes, as well as out-of-cluster cloud provider resources like object storage, databases, and other managed services. It is an open-source project supported by a community of Kubernetes experts and practitioners, and is an incubating project of the Cloud Native Computing Foundation.

Available on: Web

Data compiled by Toolradar Pricing checked · How we evaluate
Source opencost.io

Key Features

  • Real-time cost allocation by Kubernetes concepts to the container level
  • Dynamic asset pricing via AWS, Azure, and GCP billing API integrations
  • Support for on-prem Kubernetes clusters with custom pricing
  • Cost allocation for in-cluster resources (CPU, GPU, memory, load balancers, persistent volumes)
  • Monitoring of out-of-cluster cloud provider resources (object storage, databases, managed services)
  • Integrations with other open-source tooling like Prometheus for pricing data exports
  • Open source and community-supported

Pricing Plans

Pricing checked Sep 30, 2026. Source: opencost.io, read Sep 30, 2026

OpenCost plans and prices, checked September 2026
Plan Price Details
OpenCost

Free

  • Real-time cost allocation, broken down by Kubernetes concepts to the container level
  • Dynamic asset pricing, through integrations with AWS, Azure, and GCP billing APIs as well as support for on-prem Kubernetes clusters using custom pricing
  • Allocation for in-cluster resources like CPU, GPU, memory, load balancers and persistent volumes
+2 more
  • Monitor costs outside the Kubernetes cluster from the cloud provider, resource like object storage, databases and other managed services
  • Integrations with other open source tooling, such as easy pricing data exports to Prometheus
View full pricing

Is OpenCost worth the price?

Great value

OpenCost is entirely free, making its pricing exceptionally fair and generous compared to any commercial offering.

It provides robust cost monitoring capabilities without any financial commitment. This is best for any organization, from startups to large enterprises, looking for transparent Kubernetes cost visibility without budget constraints.

Hidden Costs & Gotchas

Requires internal engineering resources for deployment and maintenance.

Full OpenCost pricing: every plan, hidden costs and alternatives

OpenCost by the numbers

OpenCost compared with 210 Monitoring tools on Toolradar, as of Oct 2026
Metric OpenCost Peer median Position (1 is best)
Free plan Yes 64% have one n/a
Listed as an alternative to 4 tools 2 #66 of 210 (joint)

Each position is counted among the tools that have data for that row, as noted under it. All Monitoring data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “OpenCost by the numbers”, Oct 2026.

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Best OpenCost Alternatives

Top alternatives based on features, pricing, and user needs.

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Kubecost Freemium

Monitor and reduce Kubernetes spend with real-time visibility and optimization insights.

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

OpenCost vs CloudZero Head-to-head: features, pricing, who wins OpenCost vs Spot by NetApp Head-to-head: features, pricing, who wins OpenCost vs Kubecost Head-to-head: features, pricing, who wins

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OpenCost FAQ

How does OpenCost help manage cloud spending in Kubernetes?

OpenCost provides detailed cost allocation and cloud resource monitoring specifically for Kubernetes environments. It breaks down costs to the container level, enabling accurate showback, chargeback, and ongoing reporting for in-cluster and out-of-cluster resources.

Which cloud providers does OpenCost integrate with for pricing data?

OpenCost integrates with major cloud providers such as AWS, Azure, and GCP to retrieve dynamic asset pricing through their billing APIs. It also supports on-prem Kubernetes clusters by allowing custom pricing configurations.

What kind of user or team is OpenCost best suited for?

OpenCost is ideal for DevOps teams, cloud infrastructure teams, and analytics teams working with cloud-native Kubernetes environments. It helps these teams gain granular visibility into their cloud spending and optimize resource allocation.

How does OpenCost compare to Kubecost?

OpenCost, like Kubecost, offers granular cost visibility within Kubernetes environments and supports multi-cloud deployments. A key difference is that OpenCost is an open-source project, providing transparency and community-driven development.

What are the main limitations of using OpenCost?

OpenCost requires Kubernetes expertise for its deployment and configuration. While it monitors in-cluster resources comprehensively, additional setup may be needed for extensive cost monitoring of non-Kubernetes resources.

How is OpenCost priced?

OpenCost is free to use, as it is an open-source project. There are no paid plans required to utilize its cost monitoring and allocation capabilities for Kubernetes environments.

Can OpenCost monitor costs for resources outside of Kubernetes clusters?

Yes, OpenCost monitors costs for both in-cluster resources like CPU and memory, and out-of-cluster cloud provider resources. This includes services such as object storage, databases, and other managed services.

Source: opencost.io

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