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Comparison

Dokku vs Fly.io

Compare categories, runtimes, pricing, regions, infrastructure, and platform trade-offs.

Comparison space

Updated

Platform

Hosting model
Managed
Managed
Self-Hosted
Self-Hosted
Open source / license
MIT
Open source / license
—
Services
Compute
Compute
GPU Compute
GPU Compute
Managed Databases
Managed Databases
Object Storage
Object Storage
Workloads
APIs
APIs
Backend Services
Backend Services
Background Workers
Background Workers
Scheduled Jobs
Scheduled Jobs
Static Sites
Static Sites
Web Applications
Web Applications
Capabilities
Compute Autoscaling
Compute Autoscaling
Scale to Zero
Scale to Zero
Zero-Downtime Application Deployments
Zero-Downtime Application Deployments

Development & Execution

Deployment & packaging
Docker / OCI
Docker / OCI
Kubernetes
Kubernetes
Self-hosted
Self-hosted
Runtimes
.NET Runtime
.NET Runtime
Custom Runtime
Custom Runtime
Deno
Deno
JVM
JVM
Node.js
Node.js
Languages
C#
C#
Clojure
Clojure
Crystal
Crystal
Elixir
Elixir
Go
Go
Java
Java
JavaScript
JavaScript
PHP
PHP
Python
Python
Ruby
Ruby
Rust
Rust
Scala
Scala
TypeScript
TypeScript
Frameworks
Django
Django
Express.js
Express.js
FastAPI
FastAPI
Fastify
Fastify
Laravel
Laravel
Next.js
Next.js
Ruby on Rails
Ruby on Rails
Spring Boot
Spring Boot
SvelteKit
SvelteKit

Pricing

Billing basis
Plan based Dokku Software
Instance based Fly Machines
Software charge
Dokku Core and Dokku Pro run on customer-managed servers; infrastructure, storage, transfer, backups, monitoring, and administration are separate.
$0.0028 / hour shared-cpu-1x
Starting price
$849 one-time Dokku Pro
$0.0028 / hour shared-cpu-1x
Free entry / commitment
Free plan Available in public plans
Started Machines are billed per second for provisioned compute and memory stopped Machines retain separately billed root file systems.

Infrastructure & Availability

Infrastructure provider
  • Amazon Web Services
  • Microsoft Azure
  • DigitalOcean
  • Google Cloud Platform
  • Any compatible Ubuntu or Debian server, virtual machine, dedicated server, or supported K3s cluster
  • Own Network
Supported providers
  • Amazon Web Services
  • Microsoft Azure
  • DigitalOcean
  • Google Cloud Platform
  • Any compatible Ubuntu or Debian server, virtual machine, dedicated server, or supported K3s cluster
  • Own Network
Placement control
Unknown
  • Regional

Security & Compliance

Access & identity
Deployment Credentials
SSH public keys Git deployment access to a self-hosted Dokku instance; host security remains operator-owned
Unknown
Access Control
Unknown
Organization roles and scoped tokens Fly.io organizations and applications
Single Sign-On
Unknown
Required Google or GitHub organization sign-in Fly.io organizations
Encryption & secrets
Secrets Management
Unknown
Encrypted application secrets Fly.io applications
Encryption at Rest
Unknown
LUKS-encrypted volumes and managed database storage Persistent Fly.io storage
Network isolation & protection
Network Isolation
Unknown
Firecracker microVMs with no shared guest kernel Fly Machines
Private Networking
Unknown
Per-organization 6PN WireGuard network Applications are private unless explicitly exposed
Assurances & programs
HIPAA
Unknown
Eligible use Signed BAA and $99/month compliance package required; customer safeguards apply
SOC Reports
Unknown
SOC 2 Type II Fly.io managed platform