OpenFaaS vs Rook: Key Differences & When to Use Each

Comprehensive side-by-side comparison of features, pricing, and metrics

Key Differences

Compare OpenFaaS and Rook across features, pricing, integrations, and community metrics. OpenFaaS / Rook.

Feature

OpenFaaS

Serverless

Rook

Storage

Side-by-side comparison of developer tools
Serverless functions made simple
Cloud-native storage orchestrator for Kubernetes
GitHub Stars
⭐ 26,230
⭐ 13,619
Contributors
👥 187
👥 697
Pricing
✓ Free
Enterprise: Contact sales
✓ Free
Enterprise: Contact sales
Languages
Go
Go
Features
  • • Docker
  • • Faas
  • • Functions
  • • Functions As A Service
  • • Gitops
  • • Ceph
  • • Cloud Native
  • • Cncf
  • • Docker
  • • Etcd
Integrations
  • • kubernetes
  • • docker
  • • aws
  • • kubernetes
  • • docker
Momentum Score
14/100 (stable)
71/100 (stable)
Community Health
34/100 (needs-attention)
72/100 (good)
Maturity Index
27/100 (experimental)
49/100 (emerging)
Innovation Score
69/100 (progressive)
64/100 (progressive)
Risk Score (higher is safer)
25/100 (high)
53/100 (low)
Developer Experience
90/100 (excellent)
95/100 (excellent)
Links
🌐 Visit Website View on GitHub
🌐 Visit Website View on GitHub

OpenFaaS Strengths

  • ✓ More popular (26,230 stars)

Rook Strengths

  • ✓ Larger community (697 contributors)

When to Use OpenFaaS vs Rook

Use OpenFaaS when its strengths align better with your stack and team needs, and choose Rook when its ecosystem, integrations, or cost profile is a better fit.

Related comparisons

OpenFaaS vs Knative → Rook vs MinIO → OpenFaaS vs Kubernetes → Rook vs Longhorn → OpenFaaS vs Docker → Rook vs Kubernetes → OpenFaaS vs MinIO → Rook vs Docker → OpenFaaS vs Istio → Rook vs Istio → OpenFaaS vs Drone → Rook vs Drone →

More Comparisons

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Data source: GitHub API

Last updated: 8/30/2026