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Cloud · head to head

Azure Functions vs Traefik

Azure Functions logo

Azure Functions

Cloud

Event-driven serverless compute on Azure

From
Free
Rated
-
Full reviewWebsite
Traefik logo

Traefik

Networking

Modern cloud-native edge router and API gateway

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Azure Functions consumption plan free grant is capped at 1 million executions and 400,000 GB-seconds of resource consumption per month per subscription, billed per GB-second beyond that; Traefik no transparent pricing displayed for Traefik Hub API Gateway or API Management products

Where they differ

Only the attributes on which Azure Functions and Traefik actually diverge.

Attributes where Azure Functions and Traefik differ
AttributeAzure FunctionsTraefik
Pricing modelusage-basedfreemium
PlatformsWebKubernetes, Docker, Cloud
CategoryCloudNetworking
FoundedUnknown2015

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Azure Functions

Nothing recorded that Traefik does not also cover.

Only in Traefik

  • API Gateway
  • Load Balancing
  • SSL/TLS Termination
  • Kubernetes
  • Docker
  • Consul
  • etcd
  • Linux support

What people use each for

The jobs each tool is most often brought in to do.

Azure Functions

  • Event-driven computingnot Traefik
  • Serverless application backendnot Traefik
  • Scalable API endpointsnot Traefik

Traefik

  • API gateway for microservices architecturenot Azure Functions
  • Kubernetes ingress controllernot Azure Functions
  • Container and VM traffic routingnot Azure Functions
  • Cloud-native application managementnot Azure Functions

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Azure Functions

  • Consumption plan free grant is capped at 1 million executions and 400,000 GB-seconds of resource consumption per month per subscription, billed per GB-second beyond that
  • The newer Flex Consumption plan's free grant is smaller still, at 250,000 executions and 100,000 GB-seconds per month
  • Premium plan avoids per-execution charges but bills continuously for allocated core seconds and memory regardless of invocation volume
  • Memory is rounded up to the nearest 128 MB and execution time to the nearest 1 ms for billing, so small overages round upward

Traefik

  • No transparent pricing displayed for Traefik Hub API Gateway or API Management products
  • No subscription period specified for paid tiers
  • Traefik Hub products require contacting sales for pricing

Pricing, plan by plan

Azure Functions

Free
  • Consumption Plan$null/month
    • 1 million requests free monthly
    • 400,000 GB-seconds free monthly
    • Billed per second and executions
  • Flex Consumption Plan$null/month
    • 250,000 executions free monthly
    • 100,000 GB-seconds free monthly
    • Event-driven scaling
  • Premium Plan$null/month
    • No execution charges
    • At least one instance required
    • Includes automatic scaling and VNET access

Traefik

Free

No published plan breakdown. See the Traefik review.

Which should you pick?

Choose Azure Functions if

  • You want to start without paying.
Azure Functions review

Choose Traefik if

  • You need api gateway.
  • You want to start without paying.
  • You work on Kubernetes, Docker, Cloud.
  • You also want load balancing.
Traefik review

Questions people ask

Is Azure Functions or Traefik better?
Neither clearly leads. Azure Functions starts at Free and Traefik at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Azure Functions or Traefik?
Azure Functions starts at Free and Traefik at Free.
Does Azure Functions or Traefik run on more platforms?
Azure Functions runs on Web. Traefik runs on Kubernetes, Docker, Cloud.
Can I use Azure Functions for free?
Both have a free tier, so you can try either at no cost before committing.
What is Azure Functions best used for?
Azure Functions is most often used for event-driven computing, serverless application backend, scalable api endpoints. Of those, event-driven computing and serverless application backend are not what Traefik is typically brought in for.
What can Azure Functions do that Traefik cannot?
Traefik covers API Gateway, Load Balancing, SSL/TLS Termination, Kubernetes.

Answered from the vendors’ own pages

Azure Functions: Does Azure Functions have a free tier?

Yes, Azure Functions includes a monthly free grant of 1 million requests and 400,000 GB-seconds on the Consumption Plan, or 250,000 executions and 100,000 GB-seconds on Flex Consumption.

Source
Traefik: Is Traefik Proxy free to use?

Yes, Traefik Proxy is completely free and open source. You can download and use it at no cost.

Source
Azure Functions: What is Azure Functions' pricing model?

Azure Functions uses usage-based pricing. Consumption plans charge per second of resource consumption and per execution, measured in gigabyte-seconds and rounded to the nearest 128 MB.

Source
Traefik: What pricing model does Traefik use for its paid products?

Traefik Hub products (API Gateway and API Management) use quote-based pricing. Specific rates are not published on the pricing page; you must contact sales to request pricing.

Source
Azure Functions: What is the minimum execution time for Azure Functions?

The minimum execution time is 100 milliseconds on Consumption plans. Premium plans charge based on core seconds and allocated memory.

Source
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