Fly App performance optimization

Turbocharge Your Heroku App with Fly

Upgrade a Heroku application with and get 60% faster web dynos. It's not magic — just sound infrastructure with modern features:

  • Decreased latency with Edge TLS termination
  • HTTP2 and Brotli compression send data faster
  • High performance microVMs on bare metal servers
  • This launcher supports heroku-22, heroku-20, heroku-18, and heroku-16 buildpacks

Move 100% of your Rails app to Fly, database and everything, with the Rails Heroku Migration Guide.

Heroku apps fits in our free tier.

Fly runs Heroku apps close to your users docs