Crossplane

Open-source, CNCF-backed framework that extends Kubernetes to enable organizations to build their own control planes and platforms.

Visit website

Framework

Overview

Crossplane is an open-source, CNCF-backed framework that extends Kubernetes to enable organizations to build their own control planes and platforms. Rather than being limited to container orchestration, Crossplane allows you to orchestrate any resource—infrastructure, applications, or services—through declarative APIs.

The framework is designed around the concept of building platforms like cloud vendors do: by encapsulating policies, permissions, and guardrails behind custom API layers that enable self-service for humans, automation, and AI systems. Crossplane is extensible by design, with Providers and Configurations that let you tailor the control plane to your specific orchestration needs while maintaining the reliability and security features of Kubernetes.

Key features

Extends Kubernetes to manage any resource
Declarative APIs for infrastructure
Extensible via Providers and Configurations
Built-in RBAC and security
Cloud-native ecosystem integration
Open-source and vendor-neutral

Pros

Built on proven Kubernetes foundation
Highly extensible architecture
Enables self-service without infrastructure expertise
Declarative, auditable, machine-readable APIs
Strong community and CNCF backing
Vendor-neutral and open source

Cons

Requires Kubernetes knowledge to implement
Steep learning curve for platform design
Ecosystem still maturing compared to established platforms

Use this if

You need to build custom control planes, manage multi-cloud infrastructure declaratively, or create self-service platforms for your organization.

Skip this if

You need a simple, out-of-the-box solution without Kubernetes expertise, or you're looking for a managed platform service rather than a framework to build on.

Best for

Building custom control planesPlatform engineeringInfrastructure orchestrationMulti-cloud managementSelf-service infrastructureOrganizations building platforms like cloud vendors

Alternatives

TerraformPulumiArgoCDHelmKustomize

Compare Crossplane alternatives

More Framework

Compare all

Jasmine

Testing framework designed specifically for JavaScript code.

Next.js

React framework for production with SSR, static generation, API routes, and App Router.

eve

Framework for building autonomous AI agents, designed by Vercel as a filesystem-first approach to agent development.

Ivy Framework

Modern C# framework designed for building reactive full-stack web applications entirely in pure C#.