OpenFaaS

Name: OpenFaaS
Brand: OpenFaaS

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Serverless functions on Kubernetes

Free, no paid tier

Free Hosting & Deployment Serverless Cloud & Infrastructure

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Tracked since 2025

The Bottom Line

Updated Oct 18, 2026

Price: Free, no paid tier. Compare plans

Key facts

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

Pros

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

Cons

Learning curve
Setup complexity
Enterprise features paid
Documentation gaps
Operational overhead

What is OpenFaaS?

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

Data compiled by Toolradar Pricing checked Oct 18, 2026 · How we evaluate

Source openfaas.com

Key Features

Serverless functions
Kubernetes
Docker Swarm
Any language
Auto-scaling
Open source

Pricing Plans

Pricing checked Oct 18, 2026. Source: openfaas.com/pricing, read Oct 18, 2026

OpenFaaS plans and prices, checked October 2026
Plan	Price	Details
Community Edition	$0	Open source Self-hosted Basic features +1 more Show less Community support
OpenFaaS Pro	Custom	Enterprise features Scale-to-zero Event connectors +1 more Show less Priority support

View full pricing

Is OpenFaaS worth the price?

Good value

OpenFaaS offers a very generous pricing model with its free Community Edition, making it highly accessible for individual developers and small teams.

The 'Custom' pricing for OpenFaaS Pro, while lacking transparency, is standard for enterprise-grade serverless solutions. This structure is best for users who want to start with a powerful open-source solution and scale to enterprise needs with dedicated support.

Hidden Costs & Gotchas

OpenFaaS Pro pricing is not public, requiring direct contact.

Community Edition lacks priority support for critical issues.

Full OpenFaaS pricing: every plan, hidden costs and alternatives

OpenFaaS by the numbers

OpenFaaS compared with 54 Serverless tools on Toolradar, as of Oct 2026
Metric	OpenFaaS	Peer median	Position (1 is best)
Free plan	Yes	83% have one	n/a
Listed as an alternative to	1 tool	2	#34 of 54 (joint)
Compare-page visits, last 30 days	21 visits	33	#23 of 25 tools with 20+ compare-page visits

Each position is counted among the tools that have data for that row, as noted under it. All Serverless data · How we compute this. Advertising and placement fees are not inputs to any position. Visit counts include visits from every source.

Cite this: Toolradar, “OpenFaaS by the numbers”, Oct 2026.

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Best OpenFaaS Alternatives

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

AWS Lambda Freemium

Run code without managing servers, pay only for compute time

4.6

Azure Functions Paid

Serverless compute for event-driven applications on Azure

4.4

Google Cloud Functions Freemium

Serverless compute on Google Cloud

4.4

Knative Free

Serverless containers on Kubernetes

4.3

See all hosting & deployment tools →

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 Lambda Head-to-head: features, pricing, who wins OpenFaaS vs Azure Functions Head-to-head: features, pricing, who wins OpenFaaS vs Google Cloud Functions Head-to-head: features, pricing, who wins

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OpenFaaS FAQ

How does OpenFaaS enable portable serverless functions?

OpenFaaS makes serverless functions portable by integrating with Kubernetes, allowing functions to run on any infrastructure. This approach ensures that users are not locked into specific cloud providers for their serverless deployments.

Which teams would benefit most from using OpenFaaS?

Teams that prioritize infrastructure-agnostic functions and desire portability for their serverless deployments are well-suited for OpenFaaS. It is particularly useful for those already utilizing or planning to use Kubernetes for their infrastructure.

How does OpenFaaS compare to Knative for serverless deployments?

OpenFaaS provides serverless functions on Kubernetes with a focus on portability and self-hosting, similar to Knative. However, OpenFaaS emphasizes its open-source nature and strong community support for its Kubernetes-native approach.

What kind of operational trade-offs should users expect with OpenFaaS?

Users should be prepared for a learning curve and some setup complexity when adopting OpenFaaS. There can also be operational overhead due to its self-hostable and Kubernetes-native architecture, and some enterprise features require a paid plan.

Does OpenFaaS support functions written in various programming languages?

Yes, OpenFaaS is designed to be language agnostic, meaning it supports serverless functions developed in a wide range of programming languages. This flexibility allows teams to use their preferred languages for function development.

How is OpenFaaS priced?

OpenFaaS is free to use, as no paid plan is required to utilize its core serverless function capabilities on Kubernetes. However, certain advanced enterprise features may be part of a paid offering.

Source: openfaas.com

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