Comparison

Dokku vs Fly.io

On the evidence we track, Fly.io leads this comparison with a composite score of 79/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Dokku full profile →Fly.io full profile →

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Dokku61

★Fly.io79

Attribute comparison across 2 tools
Attribute	Dokku	Fly.ioLeader
Vioscale score	61 / 100low · 42%	79 / 100medium · 63%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	free	unknown
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	3	5
Security
Hipaasecurity.hipaa	-	✓
Iso27001security.iso27001	-	✓
Scorecardsecurity.scorecard	5.3	-
Soc2security.soc2	-	✓
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fdokku%2Fdokku%2Fplugins%2Fcommon&per_page=100 · Last 12m: 0	-
Reliability
Sla pctreliability.sla_pct	-	99.9
Status pagereliability.status_page	-	✓
Adoption
Dependent reposadoption.dependent_repos	20	-
Github starsadoption.github_stars	32,110	-
Activity
Commits last 30dactivity.commits_last_30d	100	-
Release
Cadence daysrelease.cadence_days	1	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	MIT	-
Language
Primarylanguage.primary	Shell	-
Market
Availabilitymarket.availability	Available worldwide	Available worldwide · Popular in US

Score

Vioscale score

Dokku61 / 100low · 42%

Fly.io79 / 100medium · 63%

Pricing

Free tier

Dokku✓

Fly.io✓

Model

Dokkucommercial

Fly.iocommercial

Price level

Dokkufree

Fly.iounknown

Transparent

Dokku✓

Fly.io✓

Integrations

Count

Dokku3

Fly.io5

Security

Hipaa

Dokku–

Fly.io✓

Iso27001

Dokku–

Fly.io✓

Scorecard

Dokku5.3

Fly.io–

Soc2

Dokku–

Fly.io✓

Vulnerabilities

DokkuCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fdokku%2Fdokku%2Fplugins%2Fcommon&per_page=100 · Last 12m: 0

Fly.io–

Reliability

Sla pct

Dokku–

Fly.io99.9

Status page

Dokku–

Fly.io✓

Adoption

Dependent repos

Dokku20

Fly.io–

Github stars

Dokku32,110

Fly.io–

Activity

Commits last 30d

Dokku100

Fly.io–

Release

Cadence days

Dokku1

Fly.io–

History

Dokku20 items

Fly.io–

License

Spdx

DokkuMIT

Fly.io–

Language

Primary

DokkuShell

Fly.io–

Market

Availability

DokkuAvailable worldwide

Fly.ioAvailable worldwide · Popular in US

Capabilities

Feature-by-feature on the axes that matter for paas & hosting. “-” means undocumented, not absent.

Capability comparison for PaaS & Hosting
Capability	Dokku	Fly.io
Deploy
Git-push auto-deploy	✓	-
Deploy arbitrary container image	✓	✓
Per-PR preview environments	✗	-
Build
Build system	Buildpacks	Dockerfile
Runtime / language breadth	Multiple languages via Heroku buildpack auto-detection	Docker containers, Node.js, Deno, and other containerized runtimes
Scale
Autoscaling	None	-
Deployment
Geographic reach	Single-region	Multi-region
Hosting	Self-hosted only	Cloud only
Data
Bundled managed data services	✗	✓
Delivery
Built-in global CDN / edge	✗	-
Custom domains + automatic TLS	✓	✓
Ops
Env vars & secrets management	✓	-
Instant rollbacks	✗	-
Extensibility
CLI + deploy API	✓	✓

Deploy

Git-push auto-deploy

Dokku✓

Fly.io-

Deploy arbitrary container image

Dokku✓

Fly.io✓

Per-PR preview environments

Dokku✗

Fly.io-

Build

Build system

DokkuBuildpacks

Fly.ioDockerfile

Runtime / language breadth

DokkuMultiple languages via Heroku buildpack auto-detection

Fly.ioDocker containers, Node.js, Deno, and other containerized runtimes

Scale

Autoscaling

DokkuNone

Fly.io-

Deployment

Geographic reach

DokkuSingle-region

Fly.ioMulti-region

Hosting

DokkuSelf-hosted only

Fly.ioCloud only

Data

Bundled managed data services

Dokku✗

Fly.io✓

Delivery

Built-in global CDN / edge

Dokku✗

Fly.io-

Custom domains + automatic TLS

Dokku✓

Fly.io✓

Ops

Env vars & secrets management

Dokku✓

Fly.io-

Instant rollbacks

Dokku✗

Fly.io-

Extensibility

CLI + deploy API

Dokku✓

Fly.io✓

What each one is

The product in its own terms, so the numbers below have context.

Dokku

Dokku allows developers to build and manage application lifecycles through Git-based deployments to a single server. Applications are automatically built using Dockerfiles or language detection with buildpacks, run in isolated containers, and are managed by Dokku's routing and process control systems.

Independently observed

Fly.io

Leader

Fly.io Sprites are dedicated virtual machines that provide hardware-isolated Linux environments for AI agents, tools, and evaluations. They feature persistent block storage that survives sleep cycles, automatic checkpointing, and support for executing untrusted code with configurable network policies.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Dokku

Open sourceFree tier

Free open source. Dokku Pro available (pricing not disclosed).

Open SourceFree
- Git push deployment
- Buildpack/Dockerfile support
- Docker container management
- Environment variables
- Domain/SSL configuration
- +4 more

as of 2026-08-03verify ↗

Fly.io

Leader

from $29/moUsage-based

Usage-based pricing (pay-as-you-go) with optional prepayment for 40% discount. Serious Support from $29/month. HIPAA compliance at $99/month. Enterprise available via contact.

Pay-as-You-GoPay only for what you use
- Micro VMs
- Persistent storage
- Private networking
- Unlimited users per organization
Serious SupportStarting at $29/month
- Dedicated support team
HIPAA Compliance$99/month
- HIPAA-compliant workloads
- BAAs
- SOC2 certification
Machine ReservationSave 40% with upfront commitment
- 40% discount vs pay-as-you-go
EnterpriseContact sales
- Custom resource configurations
- SLA requirements
- Emergency support

as of 2026-08-01verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Dokku	Fly.io
WebPlatforms	✗	✓
LinuxPlatforms	✓	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✗
On-premiseDeployment	✓	✗

Platforms

Web

Dokku✗

Fly.io✓

Linux

Dokku✓

Fly.io✓

CLI

Dokku✓

Fly.io✓

Deployment

Cloud / SaaS

Dokku✗

Fly.io✓

Self-hosted

Dokku✓

Fly.io✗

On-premise

Dokku✓

Fly.io✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Dokku

3 total

Docker
Heroku Buildpacks
nginx

Independently observed

Fly.io

Leader

5 total

Sentry
Supabase
Upstash
LiteFS
Tigris

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.