AWS CDK vs Crossplane: Head-to-Head Comparison

Quick Verdict

AWS CDK is the better pick for AWS developers who want infrastructure in code. Crossplane is the better pick for platform teams building internal platforms on Kubernetes.

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At a Glance

Feature	AWS CDK	Crossplane
Best For	AWS developers who want infrastructure in code	Platform teams building internal platforms on Kubernetes
Pricing	Free and open source	Free and open source
Free to Start	Yes	Yes
License	Open source	Open source
Deployment	Library / framework in your stack	Runs in your Kubernetes cluster
Link	Visit AWS CDK	Visit Crossplane

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Detailed Breakdown

AWS CDK

Define AWS infrastructure in TypeScript, Python and more

Pros:

• High-level constructs
• Real programming languages
• Synthesizes to CloudFormation

Cons:

• AWS focused
• Inherits CloudFormation limits

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Crossplane

Kubernetes-native control plane for cloud infrastructure

Pros:

• Manage infrastructure through Kubernetes APIs
• Compositions for platform abstractions
• Continuous reconciliation

Cons:

• Requires Kubernetes expertise
• Steeper learning curve

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Key Differences

• Positioning: AWS CDK — define AWS infrastructure in TypeScript, Python and more. Crossplane — Kubernetes-native control plane for cloud infrastructure.
• Both share the same licensing model (open source), so the decision comes down to features and workflow fit.
• Deployment: AWS CDK — library / framework in your stack. Crossplane — runs in your Kubernetes cluster.
• Pricing: AWS CDK — free and open source. Crossplane — free and open source.
• Signature strength: AWS CDK — high-level constructs. Crossplane — manage infrastructure through Kubernetes APIs.

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Frequently Asked Questions

Is AWS CDK better than Crossplane?

It depends on your requirements. AWS CDK is a strong fit for AWS developers who want infrastructure in code, while Crossplane suits platform teams building internal platforms on Kubernetes.

Is AWS CDK free to use?

Yes, you can start with AWS CDK for free. Pricing model: Free and open source.

Is Crossplane free to use?

Yes, you can start with Crossplane for free. Pricing model: Free and open source.

Can I self-host AWS CDK or Crossplane?

AWS CDK runs inside your own stack: library / framework in your stack. Crossplane can be self-hosted. Deployment options: runs in your Kubernetes cluster.

What are the main drawbacks of AWS CDK and Crossplane?

AWS CDK: AWS focused; inherits CloudFormation limits. Crossplane: requires Kubernetes expertise; steeper learning curve.