Fly.io Review
Deploy apps globally with automatic scaling and zero-config databases
Last reviewed: 20 May 2026
Fly.io runs Docker containers on bare metal in 35+ cities globally with sub-50ms latency from most locations. Free allowance each month. Persistent volumes and managed PostgreSQL.
Fly.io lets you deploy Docker containers to edge locations worldwide with automatic scaling and load balancing. Includes managed PostgreSQL, Redis, and Tigris object storage. Pay only for compute resources used, with generous free tier. Ideal for startups and indie projects requiring global distribution without managing Kubernetes clusters.
Pros
- Deploy to 35+ regions for true edge performance and low latency
- Integrated PostgreSQL and Redis databases included in pricing
- Simple CLI-based workflow requiring minimal configuration
- Generous free tier covers most small projects indefinitely
- Automatic SSL certificates and built-in DDoS protection
Cons
- Smaller ecosystem and fewer managed services compared to AWS or GCP
- Limited documentation for advanced networking and custom configurations
- Data residency options more restricted than major cloud providers
Best For
Developers and small teams deploying containerized web apps that benefit from global edge distribution without the operational overhead of Kubernetes.
Pricing
Free
- Core features included
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Frequently asked about Fly.io
Does Fly.io have a free tier?
Yes. Fly.io offers a free allowance every month with no credit card required to start. You can deploy Docker containers and run persistent volumes at no cost within the free tier limits. Paid resources beyond the allowance are billed on usage.
What datacenters does Fly.io use?
Fly.io operates in 35+ cities across eight regions: United States, United Kingdom, Germany, France, Netherlands, Singapore, Japan, and Australia. You choose which regions host your containers, optimizing for latency and compliance with sub-50ms latency from most locations.
Can I run WordPress on Fly.io?
Fly.io does not offer one-click WordPress. You must containerize WordPress yourself using Docker. This requires technical setup — you build a Dockerfile, configure the container, and deploy it via Fly's CLI. Better suited for developers than WordPress beginners.
Does Fly.io include database backups?
Fly.io offers managed PostgreSQL, but daily automated backups are not included. You manage backup strategy yourself — either via manual snapshots or third-party backup tools integrated with your application.
What support channels does Fly.io offer?
Fly.io does not offer phone or live chat support. Support is community-driven through their forums and documentation. Paid support tiers are not available, making this best for self-sufficient developers comfortable troubleshooting independently.
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