Overview
Flynn is a self-hosted PaaS inspired by Heroku that lets you git-push deploy apps to your own infrastructure. It handles containerisation, routing, process scaling, database provisioning, and SSL automatically. While Flynn's development has slowed, it remains a solid reference implementation of a Heroku-compatible open-source PaaS.
Where it falls short of Heroku
- Project is largely unmaintained as of 2023
- No Kubernetes backend; scaling is limited to a bespoke cluster model
- Smaller ecosystem and community compared to Dokku or CapRover
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
Tags
Claim this listing to keep it accurate, add a deploy template, or feature it on relevant pages.
Embed the Flynn difficulty badge in your README — it links back here.
[](https://openreplace.com/flynn)Similar open-source projects
Other self-hostable tools in the same space worth comparing.
Automatic HTTPS web server and reverse proxy with zero config TLS
Cloud-native HTTP reverse proxy and load balancer for microservices
Self-hostable Heroku/Netlify alternative for apps, databases, and services
Self-hosted PaaS to deploy apps and databases with Docker and Traefik