Turbocharge Your
Heroku App with Fly

Upgrade a Heroku application with fly.io 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.