StackBlaze vs Fly.io: managed PaaS vs DIY edge
Fly.io is powerful if you love flyctl. StackBlaze is for teams who want git-push deploys, a full dashboard, and managed databases without learning Machines API.
Dean Kamali
CTO
Fly.io pioneered developer-friendly edge compute. StackBlaze targets a different buyer: teams who want Heroku-style workflows on Kubernetes without adopting flyctl, fly.toml tuning, or per-machine sizing spreadsheets.
Workflow comparison
| StackBlaze | Fly.io | |
|---|---|---|
| Deploy path | git push + dashboard | flyctl deploy + Machines API |
| Config surface | Dashboard + blueprint YAML | fly.toml per app |
| Managed MongoDB | Coming soon | No |
| PR preview environments | Full stack | No native equivalent |
| Private networking | All plans | WireGuard (manual setup) |
When Fly.io wins
Fly.io is excellent when you want machines in specific cities, you are comfortable SSHing into VMs, and your team already standardized on fly.toml. Gaming backends and latency-sensitive WebSocket fanout are common Fly sweet spots.
When StackBlaze wins
If your team came from Heroku or Render and wants git-push deploys, role-based team access, and managed Postgres and Redis (MongoDB coming soon) without operating Machines, StackBlaze removes the CLI-centric workflow. Finance teams also prefer one credit balance covering compute, storage, and bandwidth over piecing together compute, volume, and IPv4 line items.
Migration tip
Export fly.toml env vars to JSON and import into StackBlaze. Map process types to web services and workers, no need to translate Machines profiles by hand.
Verdict
Fly.io is infrastructure you operate with a great CLI. StackBlaze is a platform your whole team can use from day one, designers click deploy, finance reads one invoice, and on-call uses the same dashboard as developers.
Dean Kamali
CTO at StackBlaze
CTO of StackBlaze. Writes about infrastructure, deployments, and the systems that keep production running.
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