Open Source Alternatives

Alternatives to Fly.io

Platform for running full-stack apps globally close to users.

3 building blocks
fly.io ↗

Fly.io is a trademark of its respective owner.

Updated Apr 2026

Building Blocks

Fly.io is a platform — it bundles multiple capabilities into one subscription. These tools each cover one piece. Teams often assemble 2–3 of them instead of paying for the full suite.

Coolify

27covers: app hosting55%

Self-hostable PaaS alternative to Vercel/Heroku

Dokku

21covers: app deployment45%

Docker-powered PaaS for app lifecycle management

CapRover

14covers: app deployment55%

Scalable PaaS with automated Docker+nginx

Explore Other Tools

Render 5Heroku 5Netlify 3Vercel 3Datadog 15New Relic 10Auth0 9OpenAI API 7AWS Cognito 6Redis Cloud 5

We cover new deployment/paas tools every week

Including when one of these alternatives ships a major update. Free.