Fly.io Has a Free API That Deploys Docker Apps Globally With Edge Hosting

Fly.io runs Docker containers on servers worldwide. Your app runs in 30+ regions, closest to your users. Built-in Postgres, Redis, and persistent volumes. Quick Start brew install flyctl fly auth login fly launch # detects Dockerfile, creates app fly deploy # deploys to nearest region Scale Globally fly regions add ams lhr nrt syd # add regions fly scale count 3 # 3 instances fly scale vm shared-cpu-2x # bigger VMs Fly Postgres fly postgres create --name my-db fly postgres attach my-db # DATABASE_URL automatically set Machines API (Microservices) # Create a machine (lightweight VM) fly machine run myimage:latest --region iad --size shared-cpu-1x Free Tier 3 shared-cpu-1x VMs (256MB each) 3GB persistent volumes 160GB outbound transfer Fly.io vs Railway vs Render Feature Fly.io Railway Render Global edge 30+ regions 1 region 4 regions Docker Native Yes Yes Databases Managed Postgres Built-in Managed Free tier 3 VMs 500 hours 750 hours The Bottom Line Fly.io is for apps that need to be fa