# OpenFaaS

OpenFaaS - Serverless Functions Made Simple

Repository: https://github.com/openfaas/faas
Canonical: https://ross.abutalabs.com/products/openfaas
Homepage: https://www.openfaas.com
Language: Go
License: NOASSERTION
License Family: other
Topics: functions-as-a-service, functions, lambda, serverless, prometheus, kubernetes, k8s, serverless-functions, paas, gitops, faas, docker, golang, nodejs
Last push: 2026-07-02T09:09:13+00:00
Link (homepage): https://www.openfaas.com
Link (site_page): https://www.openfaas.com/pricing
Link (site_page): https://docs.openfaas.com/
Link (site_page): https://openfaas.com/pricing

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 90, release rhythm 45, longevity 100
- inputs: {"age_days": 3541, "days_push": 62, "days_rel": 369, "gap_med": 10, "n_releases_24m": 4}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 26230, forks 1970 (observed 2026-08-28T04:11:38.920671+00:00)

## What it is
OpenFaaS is a serverless functions platform that lets developers deploy event-driven functions and microservices packaged as OCI/Docker containers to Kubernetes or a single VM (via faasd). It provides a UI, CLI, REST API, autoscaling, and event triggers (Kafka, SQS, cron, etc.), with a commercial Standard/Enterprise tier and a free Community Edition limited to personal use.

## Use cases
- deploy serverless functions to kubernetes
- run event-driven functions triggered by kafka or sqs
- scale functions to zero to save costs
- run a lightweight faas platform on a single vm without kubernetes
- build etl and data pipelines with parallel function execution
- offer customers a sandbox to run their own code snippets
- offload background tasks with async queuing and retries

## When to choose
- you want portable, language-agnostic functions packaged as Docker/OCI images on Kubernetes or a single VM
- you need event-driven triggers from Kafka, RabbitMQ, AWS SQS/SNS, GCP Pub/Sub, cron, or MQTT
- you want a self-hosted alternative to AWS Lambda with a UI, CLI, and REST API
- you need commercial support and production features like scale-to-zero, SSO, and RBAC

## When to avoid
- you need a fully open-source license for commercial production use - Community Edition has a 60-day commercial limit and paid tiers are required
- you want a managed serverless service without operating your own infrastructure
- your workload is simple enough that plain containers or a scheduler would suffice
- you need more than 15 functions or multiple namespaces on the free tier

## Facets
- artifact type: service
- maturity: stable
- function: serverless, deployment, api-framework, http-server, monitoring, scheduling, workflow-automation, container-orchestration
- domain: cloud-computing, microservices, self-hosted, backend
- platform: go, self-hosted, cloud
- tags: faas, serverless-functions, event-driven, autoscaling, scale-to-zero, faasd, openfaas, functions-as-a-service, commercial-license, gitops, devops, automation, kubernetes, docker, linux

## Member repositories
- openfaas/faas (main) score 76
- openfaas/faasd (backend) score 53
- openfaas/faas-netes (backend) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:38.920671+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:55:54.732015+00:00, confidence not recorded.
  - readme: https://github.com/openfaas/faas (fetched 2026-08-28T04:11:38.920671+00:00, sha 538f254a93d2)
  - homepage: https://www.openfaas.com (fetched 2026-08-29T07:52:24.160542+00:00, sha f67fc0fb708f)
  - site_page: https://docs.openfaas.com/ (fetched 2026-08-29T07:52:24.171959+00:00, sha 9411580f6d53)
  - site_page: https://www.openfaas.com/pricing (fetched 2026-08-29T07:52:24.169924+00:00, sha 7a21d2bbd9cd)
  - site_page: https://openfaas.com/pricing (fetched 2026-08-29T07:52:24.173694+00:00, sha 7a21d2bbd9cd)
- Data as of 2026-08-30T08:39:29.467469+00:00.