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Head-to-head · Serverless Development Frameworks

Quarkus vs OpenFaaS

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Quarkus #5 in Serverless Development Frameworks 8.6/10 Free plan Free plan✓ 0 of 4 features Visit Quarkus
OpenFaaS #6 in Serverless Development Frameworks 8.4/10 Free plan · 14-day trial Free planFree trial✓ 0 of 4 features Visit OpenFaaS

Quarkus leads on 0 checks, OpenFaaS on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreQuarkus · 8.6/10
  • Free planboth
  • Free trialonly OpenFaaS

Quarkus scores higher on our rubric for serverless development frameworks: 8.6 against 8.4 out of 10; our editors rank them #5 and #6.

Quarkus is the better fit for java teams building cloud-native applications and functions. OpenFaaS is the better fit for teams deploying containerized functions on Kubernetes.

  • Quarkus fits best

    Java teams building cloud-native applications and functions

  • OpenFaaS fits best

    Teams deploying containerized functions on Kubernetes

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Side by side

Feature Quarkus 8.6/10 Visit ↗ OpenFaaS 8.4/10 Visit ↗
At a glance
Editor score 8.6 8.4
Ranking #5 in Serverless Development Frameworks #6 in Serverless Development Frameworks
Best for Java teams building cloud-native applications and functions Teams deploying containerized functions on Kubernetes
Pricing model Free Free plan + paid
Starting price Free plan $1,250/mo
Free plan ✓ ✓
Free trial — 14 days
Deployment Self-hosted Cloud, Desktop, Self-hosted
Platforms Web, Windows, macOS, Linux Web, Linux
Integrations 6 integrations 11 integrations
Features Quarkus 0/4 · OpenFaaS 0/4
Local testing Not checked yet Not checked yet
Application packaging Not checked yet Not checked yet
Kubernetes support Not checked yet Not checked yet
Deployment rollback Not checked yet Not checked yet
Specs
Deployment targets Not checked yet Not checked yet
Supported languages Not checked yet Not checked yet
Deployment model Not checked yet Not checked yet
Our review
Pros
  • Build for the JVM or as a native executable
  • Live reload and continuous testing in development mode
  • Generate Kubernetes resources and container images
  • Deploy to Kubernetes, K3s, OpenShift, or a single host with faasd
  • Supports event connectors including Kafka, RabbitMQ, and PostgreSQL
  • Offers language templates plus custom container images and runtimes
Cons
  • No serverless-specific deployment workflow
  • Deployment is self-hosted on infrastructure you select
  • Support channels are community and documentation
  • Community Edition limits deployments to 15 functions and one namespace
  • Private function registries and scale-to-zero require a paid plan
  • Standard starts at $1,250 per month
Our verdict

Quarkus is an open-source framework for building cloud-native applications, aimed at Java and Kotlin teams working with JVM or native executable targets. It includes REST development, database access through Hibernate ORM and Panache,…

Read the review →

OpenFaaS is a self-hosted serverless platform for teams deploying event-driven functions and microservices as OCI container images. It targets Kubernetes, K3s, OpenShift, and single-host deployments with faasd, and is designed for cloud,…

Read the review →
  1. QuarkusServerless Development Frameworks 8.6Free plan
  2. OpenFaaSServerless Development Frameworks 8.4Free plan · 14-day trial

Strengths and trade-offs

  • Quarkus — where it wins

    • Build for the JVM or as a native executable
    • Live reload and continuous testing in development mode
    • Generate Kubernetes resources and container images

    Where it doesn't

    • No serverless-specific deployment workflow
    • Deployment is self-hosted on infrastructure you select
    • Support channels are community and documentation

  • OpenFaaS — where it wins

    • Deploy to Kubernetes, K3s, OpenShift, or a single host with faasd
    • Supports event connectors including Kafka, RabbitMQ, and PostgreSQL
    • Offers language templates plus custom container images and runtimes

    Where it doesn't

    • Community Edition limits deployments to 15 functions and one namespace
    • Private function registries and scale-to-zero require a paid plan
    • Standard starts at $1,250 per month
  • Quarkus8.6/10 · Free plan

    An open-source Java and Kotlin framework with Kubernetes tooling, not a serverless deployment workflow.

    Visit QuarkusFull verdict →
  • OpenFaaS8.4/10 · Free plan · 14-day trial

    A self-hosted, container-based serverless platform with broad Kubernetes targets and paid scale-to-zero.

    Visit OpenFaaSFull verdict →

More comparisons

All serverless development frameworks comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update