Cloudflare vs Fly.io — Which One Wins?
A detailed, side-by-side comparison of Cloudflare and Fly.io to help you pick the right tool for your workflow.
Quick Verdict
Cloudflare takes the lead with a 4.6 rating and is best for every website for cdn/dns, and developers building on edge computing.. Fly.io (4.2) is the better pick if you need developers building globally distributed applications that need low latency worldwide..
Side-by-Side Comparison
| Criteria | Cloudflare | Fly.io |
|---|---|---|
| Rating | ★★★★★ 4.6(398) | ★★★★ 4.2(145) |
| Pricing Model | freemium | freemium |
| Starter Price | $20/mo (Pro) | ~$3-5/mo (pay-as-you-go) |
| Free Tier | Yes | Yes |
| Platforms | web | web, linux, mac, windows |
| Learning Curve | medium | hard |
| API Available | Yes | Yes |
| Best For | Every website for CDN/DNS, and developers building on edge computing. | Developers building globally distributed applications that need low latency worldwide. |
| Verdict | recommended | situational |
Feature Checklist
| Feature | Cloudflare | Fly.io |
|---|---|---|
| Global CDN with 300+ locations | — | |
| Workers (edge computing) | — | |
| R2 object storage (no egress fees) | — | |
| Pages (site hosting) | — | |
| DDoS protection | — | |
| DNS management | — | |
| D1 edge database | — | |
| 30+ global deployment regions | — | |
| Full Docker container support | — | |
| Fly Postgres (multi-region) | — | |
| Persistent volumes | — | |
| Machines API | — | |
| LiteFS distributed SQLite | — |
Cloudflare
Pros
- ✓Most valuable free tier — CDN, DNS, and security for free
- ✓Workers edge computing with 300+ global locations
- ✓R2 storage eliminates egress fees
Cons
- ✕Edge computing paradigm requires rethinking application architecture
- ✕Workers have runtime limitations (CPU time, memory)
- ✕Enterprise pricing is opaque
Fly.io
Pros
- ✓Run full applications in 30+ global regions
- ✓Docker-based — full control over your runtime
- ✓Distributed PostgreSQL and SQLite at the edge
Cons
- ✕More complex than simpler hosting platforms
- ✕Documentation can be inconsistent
- ✕Pricing can be unpredictable for multi-region deployments
The Bottom Line
Both Cloudflare and Fly.io are solid tools in the Developer Tools space. Cloudflare edges ahead with a stronger overall rating (4.6 vs 4.2) and is the better choice for every website for cdn/dns, and developers building on edge computing.. However, if you prioritize developers building globally distributed applications that need low latency worldwide., Fly.io is worth serious consideration. We recommend trying the free tier or trial of each before committing.