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Fly.io

fly.io

Cloud & HostingCloud Platform
Deploy app servers close to your users with global Anycast load-balancing and zero-config private networking.
About

Fly.io is a public cloud platform designed for developers to deploy applications globally. It offers a fast and flexible compute platform with 'Fly Machines' that are hardware-virtualized containers running on their own hardware, capable of launching instantly. The platform allows developers to deploy apps in 35 regions worldwide for low-latency response times, utilize GPU-boosted models, and build distributed systems. Fly.io supports a wide range of popular frameworks and languages, automatically generating containers without requiring Dockerfiles. They also provide managed services like a fully-managed PostgreSQL database and serverful JavaScript execution that boots in under 250ms, offering an alternative to serverless trade-offs. Security features include hardware isolation and a memory-safe stack, with enterprise options for SSO and guaranteed support.

Current Score
85
Change
-
Score Updates
1
Trends
Fly.io is a well-established and respected platform for deploying applications close to users with global load balancing. It's frequently mentioned as a strong alternative to traditional cloud providers like Heroku and is recognized for its performance and feature set by tech blogs and comparison sites. Being backed by Y Combinator indicates significant venture backing and a corporate structure rather than an indie project. Momentum appears strong, with recent discussions and comparisons highlighting its capabilities, particularly in multi-region deployments and cost-effectiveness for scalable apps.
References
Sites and articles that mention Fly.io
My Thoughts About Fly.io (So Far) and Other New-ish Technology I ...

May 17, 2022 ... ... fly.io, which says. Deploy App Servers Close to Your Users. Run your full stack apps (and databases!) all over the world. No ops required. The ...

Fly.io + Turso = Scalable, Multi-Region, Low-Latency App That Will ...

Apr 11, 2024 ... AWS EC2 that can autoscale? With load balancers? Easy deployment via CI/CD? Good luck with that, try not to kill yourselves. 2. The ...

Doubts about deploying a Phoenix App on Fly.io - Chat ...

Apr 8, 2022 ... They still act like “containers” though. You can run multiple processes per VM if you want. They are not like servers you SSH into and manage ...

Mar 18, 2020 ... Fly.io is really a way to run Docker images on servers in different cities and a global router to connect users to the nearest available instance.

... fly.io nodes and control of them and forward the cost. Keeps things simple ... We at DollarDeploy building a platform to deploy apps to your own VPS.

10 best cloud app deployment platforms for development teams in ...

Aug 27, 2025 ... Choose platforms that auto-scale server instances, distribute apps across regions, and provide load balancing. ... Fly.io runs your applications ...

10 Best Heroku Alternatives for 2025 - Free and Paid Options | SigNoz

Aug 5, 2024 ... Automatic global load balancing; Built-in Postgres and Redis support; Native IPv6 support; Docker-based deployments. Pricing: Fly.io provides a ...

Sliplane vs. Fly.io

Jul 29, 2025 ... 35+ regions for global deployment; Firecracker microVMs for isolation; WireGuard VPN for secure networking; Advanced routing and load balancing ...