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Azure Functions

Azure Functions is a serverless compute service for running event-driven code without managing infrastructure. · Azure · Compute

Official pricing Docs Report outdated info

Overview

Azure Functions enables you to build and deploy event-driven applications with minimal setup, offering a generous free tier for lightweight and scalable workloads.

Good fit

Use when you need to run code in response to events or HTTP requests without managing servers.

  • event-driven workloads
  • microservices
  • prototyping
  • scalable APIs

Not a fit

Avoid if you require long-running processes, custom OS dependencies, or predictable dedicated compute resources.

  • long-running tasks
  • custom OS requirements
  • heavy compute workloads
Quickstart · 5 steps
  1. Sign in to the Azure Portal.
  2. Create a new Function App resource.
  3. Choose a runtime stack (e.g., Node.js, Python, .NET).
  4. Create a new function using the portal or VS Code extension.
  5. Configure a trigger (HTTP, timer, queue, etc.) and deploy your code.

Other free compute options

Cloudflare Workers
Cloudflare · Compute
100,000 requests/day · 10ms CPU time/request · Up to 100 Workers per account
Billing risk: None
No card
Vercel Edge Functions
Vercel · Compute
1,000,000 Edge Requests/month included · 100 GB Fast Data Transfer/month included · 1 team seat on the Hobby plan
Billing risk: None
No card
Vercel Serverless Functions
Vercel · Compute
1,000,000 Function Invocations/month included · 4 hours Fluid Active CPU/month included · 360 GB-hrs Fluid Provisioned Memory/month included
Billing risk: None
No card
Trigger.dev
Trigger.dev · Compute
$5 compute credits per month · 20 concurrent runs · Unlimited tasks
Billing risk: None
No card