Azure Functions by Microsoft

Run event-driven serverless functions on Azure, billed per execution and GB-second.

Price

Free plan

then from $1.6e-05 per GB-s

Free tier

Yes

Flex Consumption: 250,000 executions and 100,000 GB-s...

SDK downloads

—

npm @azure/functions · PyPI azure-functions

Status

—

Pricing

Free tier	Flex Consumption: 250,000 executions and 100,000 GB-s per month (Consumption plan: 1 million executions and 400,000 GB-s)
Cheapest paid plan	—
Usage price	Flex Consumption on-demand (East US): $0.000026 per GB-s, $0.40 per million executions; Consumption plan: $0.000016 per GB-s, $0.20 per million executions
Good to know	Rates from Microsoft's retail prices API (prices.azure.com) for East US, since the pricing page renders prices client-side; prices vary by region.

From the official pricing page, checked Oct 10, 2026. Prices change: confirm before you buy.

API	Free	Price	SDK downloads / wk	GitHub stars
Netlify Build and deploy web projects with serverless functions, database, and edge computing.	300 credits/month	Free plan · paid from $9/mo	—	—
Cloudflare Workers Deploy serverless code in JavaScript, Rust, C, and C++ at the edge.	100k requests/day, 10ms CPU/request, 1GB storage	Free plan · paid from $5/mo	—	—
Deno Deploy Deploy and run JavaScript/TypeScript applications with serverless hosting.	1M requests/month, 20GiB egress, 10 apps, 10...	Free plan · paid from $20/mo	—	—
Fly.io Cloud hosting platform for deploying and running applications with compute, storage, and database services.	—	Machines: $0.0030/hour (shared-cpu-1x); Storage: $0.15/GB/month;...	—	—
PythonAnywhere Run Python web applications and code in the cloud with web hosting and IDE.	One web app, two consoles with restricted internet	Free plan · paid from $10/mo	—	—
Railway Platform for deploying and hosting applications with usage-based pricing.	—	Memory $0.00000386 per GB/sec, CPU $0.00000772 per vCPU/sec,...	—	—