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Cloud Computing · head to head

Azure Functions vs Nginx

Azure Functions logo

Azure Functions

Cloud Computing

Event-driven serverless compute on Azure

From
On request
Rated
-
Full reviewWebsite
Nginx logo

Nginx

Web Development

High-performance web server and reverse proxy

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Nginx has a free tier, so it costs nothing to try first.
  • 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; Nginx open-source nginx has no admin API for changing arbitrary config at runtime; dynamic reconfiguration requires editing the config file and reloading via 'nginx -s reload'

Where they differ

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

Attributes where Azure Functions and Nginx differ
AttributeAzure FunctionsNginx
Starting priceOn requestFree
Pricing modelsubscriptionUnknown
Free tierNoYes
PlatformsWebWindows, macOS, Linux
CategoryCloud ComputingWeb Development
FoundedUnknown2011

Identical on both: 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 Nginx does not also cover.

Only in Nginx

  • High-performance web server
  • Reverse proxy
  • Load balancing
  • HTTP caching
  • SSL/TLS termination
  • Gzip compression
  • Rate limiting
  • Static file serving

What people use each for

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

Azure Functions

No use cases recorded yet. See the Azure Functions review.

Nginx

  • HTTP web server and static file servingnot Azure Functions
  • Reverse proxy and load balancernot Azure Functions
  • TLS/SSL termination (SNI, HTTP/2, HTTP/3)not Azure Functions
  • Content cachingnot Azure Functions
  • Kubernetes Ingress Controller backendnot Azure Functions
  • TCP/UDP stream proxyingnot 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

Nginx

  • Open-source nginx has no admin API for changing arbitrary config at runtime; dynamic reconfiguration requires editing the config file and reloading via 'nginx -s reload'
  • No official built-in GUI or dashboard for management or live metrics in the open-source edition
  • Advanced capabilities such as active health checks, dynamic upstream reconfiguration without reload, and a full API gateway feature set are exclusive to the paid NGINX Plus product, not open-source nginx
  • No published list price for NGINX Plus on the current F5 product page; pricing requires contacting sales

Pricing, plan by plan

Azure Functions

On request

No published plan breakdown. See the Azure Functions review.

Nginx

Free
  • Open SourceFree
    • Web server
    • Reverse proxy
    • Load balancing

Which should you pick?

Choose Azure Functions if

Nothing in the data separates Azure Functions from Nginx on the points above - pick on price and on how each one feels to use.

Azure Functions review

Choose Nginx if

  • You need high-performance web server.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want reverse proxy.
Nginx review

Questions people ask

Is Azure Functions or Nginx better?
Neither clearly leads. Azure Functions starts at On request and Nginx at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Azure Functions or Nginx?
Nginx has a free tier; the other does not. Paid plans start at On request for Azure Functions and Free for Nginx.
Does Azure Functions or Nginx run on more platforms?
Azure Functions runs on Web. Nginx runs on Windows, macOS, Linux.
Can I use Nginx for free?
Yes. Nginx has a free tier, so you can try it without paying. Azure Functions starts at On request.
What can Azure Functions do that Nginx cannot?
Nginx covers High-performance web server, Reverse proxy, Load balancing, HTTP caching.
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