Coolify vs Fly.io
Updated June 2026 · A structured head-to-head comparison.
The verdict
Both Coolify and Fly.io are credible web hosting tools, and the right pick comes down to your priorities.
Choose Coolify if you want a lower starting price (free – $5/mo), a free plan to start on and a higher overall rating (4.7/5). Open-source, self-hostable Heroku/Vercel.
Fly.io — Run your app close to users, worldwide.
Coolify vs Fly.io: side by side
| Dimension | Coolify | Fly.io |
|---|---|---|
| Starting price | Free – $5/moWinner | Custom |
| Free plan | YesWinner | No |
| Pricing model | Freemium | Usage-based |
| Best for | Developers, Self Hosters | Developers, Startups |
| Platforms | Self Hosted, Web | Web, Api |
| Rating | 4.7/5Winner | 4.4/5 |
Coolify key facts
- Vendor
- Coolify
- Pricing
- Freemium — Free – $5/mo
- Free tier
- Yes
- Platforms
- Self Hosted, Web
- Best for
- Developers, Self Hosters
- Editor rating
- 4.7 / 5
- Founded
- 2021
- Headquarters
- Remote
Fly.io key facts
- Vendor
- Fly.io
- Pricing
- Usage-based — Custom
- Free tier
- No
- Platforms
- Web, Api
- Best for
- Developers, Startups
- Editor rating
- 4.4 / 5
- Founded
- 2017
- Headquarters
- Chicago, IL, USA
Frequently asked questions
Is Coolify better than Fly.io?
Neither is universally better — Coolify edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is Coolify or Fly.io cheaper?
Coolify is the more affordable of the two to get started, at free – $5/mo. Coolify starts at free – $5/mo; Fly.io starts at custom.
Can Coolify replace Fly.io?
Yes for most teams — both are web hosting tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.