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OpenFaaS

UnclaimedEditor reviewed

Serverless functions on Kubernetes

Cloud & InfrastructureHosting & DeploymentServerless
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Tracked since2025
0 reviews tracked

The Bottom Line

Entry price

Free, no paid tier

Biggest pro

Open source serverless

Biggest con

Learning curve

TL;DR - OpenFaaS

  • OpenFaaS is an open-source serverless framework for Docker and Kubernetes
  • It deploys functions as containers with auto-scaling and metrics
  • Free and open-source, Pro support available
Pricing: Free forever
Best for: Individuals & startups

What is OpenFaaS?

Editorial review
OpenFaaS makes serverless functions portable. Functions on any infrastructure-serverless that doesn't lock you into clouds. The portability is the point. The Kubernetes integration works. The community supports it. Teams wanting portable serverless consider OpenFaaS for infrastructure-agnostic functions.

Available on: Web

how we evaluateSourceopenfaas.com ↗

Pros & Cons

Pros

  • Open source serverless
  • Kubernetes native
  • Self-hostable
  • Good community
  • Language agnostic

Cons

  • Learning curve
  • Setup complexity
  • Enterprise features paid
  • Documentation gaps
  • Operational overhead

Key Features

Serverless functionsKubernetesDocker SwarmAny languageAuto-scalingOpen source

Pricing Plans

Pricing checked May 29, 2026

Community Edition

Free

  • Open source
  • Self-hosted
  • Basic features
  • Community support

OpenFaaS Pro

Custom

  • Enterprise features
  • Scale-to-zero
  • Event connectors
  • Priority support
Calculate your costView full pricing

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Best OpenFaaS Alternatives

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

AWS Lambda logo
AWS LambdaPaid

Run code without managing servers, pay only for compute time

4.6
Azure Functions logo
Azure FunctionsPaid

Serverless compute for event-driven applications on Azure

4.4
Google Cloud Functions logo
Google Cloud FunctionsFreemium

Serverless compute on Google Cloud

4.4
Knative logo
KnativeFree

Serverless containers on Kubernetes

4.3
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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.

OpenFaaS vs AWS LambdaHead-to-head: features, pricing, who winsOpenFaaS vs Azure FunctionsHead-to-head: features, pricing, who winsOpenFaaS vs Google Cloud FunctionsHead-to-head: features, pricing, who wins

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OpenFaaS FAQ

Is OpenFaaS free?

OpenFaaS is open source and free to self-host. OpenFaaS Pro starts at $25/month for additional features and support.

What is OpenFaaS?

OpenFaaS lets you deploy serverless functions on Kubernetes. You can write functions in any language and deploy them with simple commands.

OpenFaaS vs AWS Lambda?

OpenFaaS is self-hosted on your Kubernetes cluster. Lambda is fully managed by AWS. Use OpenFaaS if you want serverless with infrastructure control.

Source: openfaas.com