Fly.io
Host applications on containerized infrastructure distributed worldwide
- Also known as
- fly-io
Available worldwide · Popular in: US
What is Fly.io?
A cloud platform that deploys Docker containers as isolated virtual machines across global data centers. Supports multiple programming languages and frameworks, plus Sprites, a specialized offering for AI agents and development tools.
Fly.io pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
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-Go
Usage-based pricing for Micro VMs and persistent storage
- Micro VMs
- Persistent storage
- Private networking
- Unlimited users per organization
Serious Support
Access to dedicated team of engineers
- Dedicated support team
HIPAA Compliance
Compliance package for HIPAA-regulated workloads
- HIPAA-compliant workloads
- BAAs
- SOC2 certification
Machine Reservation
Prepay for infrastructure and receive 40% discount
- 40% discount vs pay-as-you-go
Enterprise
Contact salesCustom solutions for larger workloads with SLA requirements
- Custom resource configurations
- SLA requirements
- Emergency support
What Fly.io does
The capabilities that matter for paas & hosting, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Git-push auto-deploy
- -
- Deploy arbitrary container image
- ✓
- Per-PR preview environments
- -
- Build system
- Dockerfile
- Runtime / language breadth
- Docker containers, Node.js, Deno, and other containerized runtimes
- Autoscaling
- -
- Geographic reach
- Multi-region
- Hosting
- Cloud only
- Bundled managed data services
- ✓
- Built-in global CDN / edge
- -
- Custom domains + automatic TLS
- ✓
- Env vars & secrets management
- ✓
- Instant rollbacks
- -
- CLI + deploy API
- ✓
Platform & deployment
Independently observed- CLI
- Web
- Cloud / SaaS
Integrations (8)
Independently observed- Sentry
- Supabase
- Upstash
- LiteFS
- Tigris
- OpenRouter
- GitHub
- Slack
Fly.io FAQ
Common questions about Fly.io, answered from independent, dated evidence.
What is Fly.io?
A cloud platform that deploys Docker containers as isolated virtual machines across global data centers. Supports multiple programming languages and frameworks, plus Sprites, a specialized offering for AI agents and development tools. It is indexed under PaaS & Hosting.
Source: https://fly.io
Is Fly.io free?
Fly.io offers a free tier, so you can start without paying. Paid plans start at $29 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.
Source: https://fly.io
What platforms does Fly.io support?
Fly.io supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://fly.io
Can Fly.io be self-hosted?
We have only confirmed a cloud / SaaS deployment for Fly.io, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.
Source: https://fly.io
What does Fly.io integrate with?
We have confirmed 8 integrations for Fly.io, including Sentry, Supabase, Upstash, LiteFS, Tigris, OpenRouter, GitHub and Slack. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Source: https://fly.io
What security certifications does Fly.io have?
We have independently confirmed SOC 2, ISO 27001 and HIPAA for Fly.io. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Fly.io not holding them. Always confirm compliance directly before you rely on it.
Source: https://fly.io/security
Where is Fly.io available?
Fly.io is available worldwide. Its primary market is the United States.
Source: https://fly.io
Fly.io alternatives
Other paas & hosting we track, ranked by the same independent score.
- NetlifyDeploy and manage modern web applications instantly with integrated AI capabilities and global infrastructuremedium · 73%
- VercelDeploy and manage web applications and AI agents with built-in infrastructure for preview environments, serverless compute, and global deliverymedium · 73%
- Koyebmedium · 71%
- RailwayA unified cloud platform that streamlines application deployment and scalingmedium · 61%
- Clever CloudA git-push-based platform for deploying applications with automated scaling, monitoring, and maintenancemedium · 73%
- Rendermedium · 70%
Compare Fly.io
Side by side against other paas & hosting, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Fly.io, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Reliability | 95 | 0.16 | 14.9 | ✓ |
| Security posture | 75 | 0.12 | 8.6 | ✓ |
| Pricing transparency | 100 | 0.06 | 6.3 | ✓ |
| Capabilities | 75 | 0.05 | 3.8 | ✓ |
| Integrations | 17 | 0.05 | 0.8 | ✓ |
| Price level | 0 | 0.04 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 7 items | mediumsource · 2026-09-10 · 64% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Hosting: cloud · Regions: multi · Runtimes: Docker containers, Node.js, Deno, and other containerized runtimes · Cli and api: Yes · Env secrets: Yes · Build system: dockerfile | mediumsource · 2026-09-04 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 3 | mediumsource · 2026-09-04 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-09-04 · 75% |
Pricing
Reliability
Security
Is Fly.io the right choice for you?
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