Deno Deploy vs Fly.io

Deno Deploy hosts JavaScript and TypeScript applications on Deno’s runtime, which Deno says has full Node and npm compatibility. Connect a GitHub repository and each push deploys automatically, with support for most popular frameworks. You can link an existing Postgres database or provision one from the dashboard, and the built-in Deno KV store gives you persistent data without a separate database.

The current platform, at console.deno.com, replaced Deno Deploy Classic, which shut down on 20 July 2026. The free tier includes 1 million requests and 20 GiB of egress a month. Pro costs $20 a month for 5 million requests, then $2 per extra million, and Builder costs $200 a month. If your stack is TypeScript-first and you want serverless hosting with little configuration, Deno Deploy fits. If you need other runtimes, Fly.io is a safer bet.

Fly.io takes your Docker container and runs it on servers around the world. Your app in Tokyo, Sao Paulo, and Amsterdam simultaneously, not behind a CDN, but actually running there. For apps where latency matters (real-time features, APIs, databases), this is the real deal.

The free tier gives you 3 shared VMs with 256MB RAM each, which can run a small app and a Postgres database. Beyond that, pricing is usage-based starting at $1.94/month for a shared-cpu VM. The tradeoff versus Railway or Render is complexity: Fly gives you more control over where your code runs, but you need to understand containers, config files, and networking basics. If you just want to push code and forget about it, Railway is easier. If you want your API to respond in under 50ms for users worldwide, Fly.io is worth the setup.