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 can fit under our free allowances.

Fly runs Heroku apps close to your users docs