Infrastructure

Fly.io

Run full-stack apps on lightweight VMs at the edge. Deploy via flyctl, scale across regions, attach Postgres and Redis. Pay-as-you-go pricing.

Try Fly.iofly.io

Save

Fly.io runs your app as Firecracker microVMs across a global network of regions. You deploy via flyctl and a Dockerfile (or Nixpacks), and Fly schedules instances close to your users. It is the easiest way to run a stateful long-running process or a backend that needs persistent volumes, websockets, and global reach. Compared to traditional PaaS, Fly is closer to bare metal: more control, more responsibility. Pricing is consumption-based with no monthly platform fee; new organizations get a short free trial (up to 2 hours of Machine runtime or 7 days) but no free tier or monthly allowance.

infrastructure deployment edge docker regions

Fly.io at a glance

Last verified October 17, 2026

Pricing: Pay As You Go - no monthly platform fee; Machines billed per second, from $2.19/mo for an always-on shared-cpu-1x 256MB Machine
Free trial - up to 2 hours of Machine runtime or 7 days, whichever comes first, no credit card; no free tier or monthly allowance after it ends
Managed Postgres - $38/mo (Basic) to $1,922/mo (Performance), plus $0.28/GB storage
Sprites - $0.0385 per CPU-hour and $0.021875 per GB-hour of memory, metered on active use
Support - Standard $29/mo, Premium $199/mo, Enterprise from $2,500/mo; HIPAA package $99/mo
Install: brew install flyctl
curl -L https://fly.io/install.sh | sh
pwsh -Command "iwr https://fly.io/install.ps1 -useb | iex"
Models: Not an AI tool: it runs your Docker image or Dockerfile as Fly Machines across 17 regions, deployed with flyctl or driven through the Machines API, alongside Sprites, Managed Postgres, Fly Kubernetes, and third-party extensions such as Tigris object storage and Upstash Redis billed on the Fly.io invoice.
Recent changes: Oct 13flyctl v0.4.117 maps Docker Compose restart policies to Fly containers.
Oct 8flyctl v0.4.115 adds FLY_NO_PROMPT so flyctl never prompts, and lets fly auth login run without a terminal and finish with --code.
Oct 6flyctl v0.4.113 adds Managed Postgres user password rotation and lets fly launch --yes attach to an existing Postgres database.

Sources: Fly.io pricing, Fly.io resource pricing docs, Install flyctl, flyctl GitHub releases

Similar Tools

Infrastructure

Vercel

Deployment platform behind Next.js. Git push to deploy. Edge functions, image optimization, analytics. Free tier is generous.

Infrastructure

Coolify

Self-hosted PaaS for deploying apps, databases, and services. Git-based deploys, Docker support, preview environments, and a clean UI.

Infrastructure

Cloudflare

CDN, DNS, DDoS protection, and edge computing. Free tier handles most needs. This site uses Cloudflare for DNS and analytics. Workers for edge compute.

Infrastructure

Render

Heroku-style PaaS. Deploy web services, background workers, cron jobs, and managed Postgres from Git. Free tier for static sites and small services.

Get started with Fly.io

Run full-stack apps on lightweight VMs at the edge. Deploy via flyctl, scale across regions, attach Postgres and Redis. Pay-as-you-go pricing.

Try Fly.io

Get weekly tool reviews

Honest takes on AI dev tools, frameworks, and infrastructure - delivered to your inbox.

Subscribe Free

Compare all pricing Compare side by side

More Infrastructure Tools

Vercel

Deployment platform behind Next.js. Git push to deploy. Edge functions, image optimization, analytics. Free tier is generous.

Coolify

Self-hosted PaaS for deploying apps, databases, and services. Git-based deploys, Docker support, preview environments, and a clean UI.

Convex

Reactive backend - database, server functions, real-time sync, cron jobs, file storage. All TypeScript. This site's backend (courses, videos, user data) runs on Convex.