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Fly.io

Fly.io Reviews and Details

This page is designed to help you find out whether Fly.io is good and if it is the right choice for you.

Screenshots and images

  • Fly.io Landing page
    Landing page //
    2023-11-16

Features & Specs

  1. Global Deployment

    Fly.io enables developers to deploy applications geographically close to users, reducing latency and improving performance.

  2. CLI and Git-based Deployment

    Fly.io offers a command-line interface and Git integration for quick and efficient application deployment.

  3. Automatic SSL

    Fly.io provides automatic SSL/TLS certificates, simplifying secure traffic management.

  4. Scalability

    Applications deployed on Fly.io can scale both vertically and horizontally to handle varying loads.

  5. Built-in Storage

    Fly.io offers persistent storage solutions such as Fly Volumes, which seamlessly integrate with applications.

  6. Integrated Monitoring

    Fly.io provides built-in monitoring tools to track application performance and health.

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Videos

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Social recommendations and mentions

We have tracked the following product recommendations or mentions on various public social media platforms and blogs. They can help you see what people think about Fly.io and what they use it for.
  • Best alternatives to Heroku in 2026
    Fly.io opens up two things Heroku keeps at arm's length: real multi-region deployment and full control over the runtime. Heroku's Common Runtime offers two regions (US and EU), and Private Spaces gets you one region at a time from a wider list. Fly runs Firecracker microVMs across eighteen regions on six continents, and replicas can be pinned to specific cities. If your Heroku app has global users and you've been... - Source: dev.to / 5 days ago
  • Building an autonomous Slack agent with OpenCode
    The gateway is the web service that receives requests. I host it on Fly. It accepts Slack events, automation API calls, trigger requests, Composio webhooks, Inngest calls, and runtime calls. - Source: dev.to / about 1 month ago
  • It Worked on My Machine (Literally)
    The tunnel was never meant to be permanent (it runs off my laptop, and the URL changes every time it restarts), so the next step was deploying somewhere real. I built the Docker image for Fly.io, set my username, and shipped it. - Source: dev.to / about 1 month ago
  • I Built a Zero-Knowledge Encrypted Habit Tracker with Elixir & Phoenix LiveView
    Three independent encryption layers at rest: client-side E2E, Cloak AES-256-GCM in Postgres, and LUKS disk encryption on Fly.io. - Source: dev.to / 3 months ago
  • One honojs file for entire web scraping API
    I'll also provide github repository in the end, which you can use easily to launch your own scraping APIs on vercel, Cloudflare, netlify or, fly.io or even on a Docker container. - Source: dev.to / 3 months ago
  • Object Storage & CDN Journey
    Tigris (Fly.io) provides globally distributed, S3-compatible storage with low latency, addressing the B2 latency limitations. However, its pricing model includes per-request charges in addition to storage. For an API-heavy workload like a chat system, this would scale poorly, so I decided not to go with it. - Source: dev.to / 3 months ago
  • My Journey Contributing to Django Simple Deploy: Improving the PythonAnywhere Plugin for Beginners
    Django-simple-deploy is a tool that automates the steps needed to deploy a Django app. Instead of manually setting environment variables, configuring WSGI, or running multiple commands, the tool handles these tasks using platform-specific plugins. You run one command, and it prepares your project for platforms like PythonAnywhere, Fly.io, or Scalingo. - Source: dev.to / 3 months ago
  • I built my project 4 times, that's what I learned
    I deployed it on fly.io because it was cheap and it had the ability to turn on and off machines automatically. - Source: dev.to / 4 months ago
  • Top 5 Code Sandboxes for AI Agents in 2026
    TL;DR: If you just need to ship fast, E2B has the best SDK experience. If you need the fastest cold starts, Blaxel wins at 25ms. For GPU workloads, Modal is unmatched. For self-hosted control, Daytona is open-source with a managed option. For persistent long-running sessions, Fly.io Sprites gives you 100GB NVMe per sandbox. - Source: dev.to / 4 months ago
  • The End of Heroku: What It Means for Your Apps
    Fly.io takes a different approach. Instead of abstracting away infrastructure, it gives you lightweight VMs (Machines) in 30+ regions worldwide. The deployment workflow has a similar feel (fly deploy and your app is live) but the underlying model is closer to running containers than Heroku-style dynos. - Source: dev.to / 5 months ago
  • Show HN: Attainable โ€“ The fastest and easiest way to design and deploy APIs
    This began as a passion project and an opportunity to learn new tech. I've always experienced frustration developing APIs, especially the RESTful CRUD style of data APIs. It always felt like I was repeating the same patterns over and over again, and that was tedium I didn't want. A little over a year ago, I wanted to learn more about Go, Firecracker microVM, and Svelte and thought "Could I build an API framework... - Source: Hacker News / 7 months ago
  • AI Ops for Small Engineering Teams: A Simple Guide Without the Enterprise Jargon
    Deploy your cheapest option, it could be Fly.io, Render, Railway, or a small VM. - Source: dev.to / 7 months ago
  • Google Antigravity Exfiltrates Data
    This kind of problem is present in most of the currently available crop of coding agents. Some of them have default settings that would prevent it (though good luck figuring that out for each agent in turn - I find those security features are woefully under-documented). And even for the ones that ARE secure by default... Anyone who uses these things on a regular basis has likely found out how much more productive... - Source: Hacker News / 8 months ago
  • Vibe Coding Vibe Deployment: The Next Big DevOps Shift
    Fly.io deploy apps close to users, not close to panic. - Source: dev.to / 9 months ago
  • Meet Spuddy ๐Ÿฅ”
    The real-time sync of Spuddy is currently powered by a manual deployment of y-websocket-server on Fly.io. It's annoying to manage, as y-websocket-server depends on a seldom used DB - leveldb, which doesn't have much tooling around it. Moreover, as this is YJS, and I am using React, I had to roll my own hooks & integration from React to YJS - all of it is fairly ugly code. - Source: dev.to / 10 months ago
  • How Iโ€™d scale a side project to 1 million users (without melting my server)
    Fly.io scale apps globally without setting up 20 servers. - Source: dev.to / 11 months ago
  • AI Image Generator with Stability and Tigris
    As it is now, this connection string wonโ€™t work locally, but we can tweak it a bit before configuring a proxy using the Fly.io CLI tool. Create a file in the root of the project named .env.local and paste the connection string in it. Replace the hostname with 127.0.0.1. It should look similar to this, but with different credentials:. - Source: dev.to / about 1 year ago
  • 3 Ways to Add Real-Time Features to Your Next.js App
    When you need to support live-interactions between users, updates will need to be instantaneous, else the experience will feel clunky and broken. For this, having a separate WebSocket server outside of Next.js works very well. Since Vercel doesnโ€™t support long-lived connections, youโ€™ll need to deploy this WebSocket server separately, for example, on platforms like Fly.io, Railway, or your own VPS. - Source: dev.to / about 1 year ago
  • Invisible Threads: Group email without the exposure
    Invisible Threads is built with Elixir, Phoenix, and most importantly, Postmark. Data lives on disk instead of a traditional database to keep the demo light. Authentication uses Postmark API tokens, mapping each application user directly to a Postmark server. The whole thing is deployed to Fly.io. A minimal setup let me focus on Postmark's offerings. - Source: dev.to / about 1 year ago
  • Litestream: Revamped
    The landing page shows all logos of small companies, including one that is migrating away from them (Turso) https://fly.io/. - Source: Hacker News / about 1 year ago
  • How to Host a Mongoose-Powered App on Fly.io
    One increasingly popular answer is Fly.ioโ€”a global application hosting platform that makes it surprisingly simple to deploy backend services close to your users. Fly.io gives you speed, scalability, and even stateful service support (hello, databases!) without the DevOps headache. - Source: dev.to / about 1 year ago

Summary of the public mentions of Fly.io

Fly.io, a relatively newer player in the cloud computing and hosting industry, has garnered attention as a viable alternative to established platforms like Heroku. It's positioned uniquely among its competitors, such as Render, Railway, Vercel, Netlify, and others, by offering a developer-centric platform that combines various desirable features with simplicity and affordability.

Key Features and Public Perception

  1. Ease of Use and Deployment: A significant highlight of Fly.io's offerings is the straightforward deployment process it provides. Developers frequently praise Fly.io for allowing global deployment without the complexity generally associated with extensive DevOps management, such as is required with Kubernetes. This feature proves particularly attractive to startups and solo developers looking to minimize operational overhead.

  2. Cost-Effectiveness: Fly.io has been often mentioned as cost-effective, offering a generous free tier making it an excellent choice for developers transitioning from Heroku. Users cite significant cost savings when moving small applications from more expensive services, like AWS Lambda, to Fly.io, with reported expenses reducing from $70/month to as low as $2/month.

  3. Scalability and Performance: The platform supports deploying applications close to the user, which achieves low latency and improved performance. This global reach is particularly beneficial for developers with diverse user bases across multiple regions. The availability of stateful service support, including integration with databases like Fly.io Postgres, enhances the platformโ€™s scalability appeal.

  4. Integration with Popular Tools: Fly.io seamlessly integrates with popular developer tools such as GitHub Actions, facilitating continuous integration/continuous deployment (CI/CD) processes. It also supports Docker containers, making it easier for developers to migrate and manage applications across different cloud providers.

  5. Positive Community Feedback: The developer community generally appreciates Fly.io for its simplicity and efficiency. Blogs and posts frequently highlight the platform's focus on reducing deployment complexities and the support for advanced setups, enhancing developers' ability to focus on core application concerns. User experiences often reflect satisfaction with Fly.io's balance of capabilities and pricing, positioning it as a preferred platform for side projects and small to medium-sized enterprise applications.

  6. Areas for Improvement: Despite its favorable reception, Fly.io is not without some limitations when compared to giants like AWS or Google Cloud Platform, which offer a broader range of services and features. However, for many developers, Fly.io effectively covers the essential needs for deploying production-ready applications.

Conclusion

In summary, Fly.io is viewed positively as an innovative and developer-friendly platform that simplifies the deployment of global applications while offering substantial cost savings. It stands out in the competitive landscape by blending performance, flexibility, and ease of use into a package that's particularly appealing to startups, developers, and students looking for a reliable alternative to platforms like Heroku. While it may not yet match the feature richness of more extensive cloud service providers, for many use cases, Fly.io delivers all that is needed to support robust application deployment and management.

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Fly.io discussion

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  1. User avatar
    clientfirstcrm
    ยท almost 3 years ago
    ยท Reply

    Affordable, good customer service, Elixir friendly and easy-to-use hosting service.

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