12 Free CAST AI Alternatives Ranked by Real Users (2026)

What is Turbonomic?

Turbonomic is an AI-powered app resource management platform that allows IT teams to accelerate their digital transformation by orchestrating the performance and cost optimisation of their applications in real-time. Its automation technology eliminates the need for manual troubleshooting and ...

What is nOps?

nOps is a cloud cost optimization platform built specifically for AWS, used by engineering and FinOps teams looking to reduce compute spending. It automates Savings Plans and Reserved Instance purchases and continuously surfaces idle or over-provisioned resources so teams can act on cost ...

What is Kubecost?

Kubecost is a revolutionary solution designed to help teams monitor and reduce Kubernetes spend at scale. This powerful tool is powered by leading venture capitalists, software executives and ex-Google cloud engineers and product managers. With Kubecost, users gain access to cost management and ...

What is Spacelift?

Spacelift is a CI/CD and collaboration platform for infrastructure-as-code — providing a managed orchestration layer for Terraform, OpenTofu, Pulumi, Ansible, and Kubernetes. It handles the operational challenges of IaC at scale: parallel stack execution, dependency management between stacks, ...

What is Terramate?

Terramate is an open-source IaC orchestration and code generation tool that adds a layer of automation on top of Terraform and OpenTofu. It detects which stacks have changed and runs Terraform commands only on affected stacks — dramatically reducing plan and apply times in large monorepos with ...

What is OpenStack?

OpenStack's modular, code-driven architecture is designed for massive scalability with thousands of compute nodes; a robust, API-driven feature set that enables the creation, sharing, and management of public and private clouds; and an active community of vendors who are powering the OpenStack ...

What is CloudBolt?

CloudBolt Cloud Management PlatformTM is software that automates cloud resource provisioning, deployment, and administration. It allows using one private cloud to manage multiple public clouds through its special connector technology, which seamlessly extends AWS, OpenStack, and Google Cloud ...

What is Cloudify?

Cloudify is an open-source cloud management platform for the enterprise, providing a robust and easy-to-use software solution for enterprises to manage all of their private, public and hybrid clouds. The Cloud Management Platform enables organizations to save costs, to increase business ...

What is Densify?

Densify is a cloud resource optimization platform for IT operations and FinOps teams managing multi-cloud or hybrid infrastructure at scale. It analyzes historical workload data to generate rightsizing recommendations for cloud instances and containers, reducing spend without degrading ...

What is HashiCorp Terraform?

HashiCorp Terraform is the perfect solution to automate infrastructure across any cloud. With its intuitive platform, it can version, alter and provision resources in a secure environment. Enterprises can dramatically speed up business processes, lower risk and become more efficient when cloud ...

What is Apache CloudStack?

Apache CloudStack is a cloud management platform that makes it easier to build, deploy, and operate private clouds. CloudStack is an open source software for automating datacenter provisioning, management, and orchestration. It separates compute resources from the datacenter fabric so those ...

What is Spotinst?

Spotinst is a cloud management platform which aims at physical and cloud infrastructure. Spotinst, by leveraging the quality and elasticity of the cloud, aims at bringing management to customers who, without Spotinst, would not have been able to make use of the public cloud. Spotinst provides a ...