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Fly.io vs Vercel
Trust Score comparison · March 2026
Signal Comparison
100k+CLI installs / mo7.8M / wk
280 commitsCommits (90d)N/A
3.5k ★GitHub stars12.4k ★
1k q'sStack Overflow12.1k q's
GrowingCommunityVery High
Fly.ioVercel
Key Differences
| Factor | Fly.io | Vercel |
|---|---|---|
| License | Proprietary | Proprietary |
| Language | Go | N/A |
| Hosted | Self-hosted | Self-hosted |
| Free tier | — | ✓ Yes |
| Open Source | — | — |
| TypeScript | — | — |
Pick Fly.io if…
- Containerized apps that need global distribution and low-latency reads
- Apps with persistent state (databases, websockets) that don't fit serverless
- Migrating from Heroku with minimal config changes
Pick Vercel if…
- You're building with Next.js
- You want zero-config CI/CD with preview deployments on every PR
- You need edge functions and a global CDN out of the box
Side-by-side Quick Start
Fly.io
# Install flyctl and deploy
curl -L https://fly.io/install.sh | sh
fly auth login
fly launch
# Deploy updates
fly deployVercel
# Deploy in 3 commands
npm i -g vercel
vercel login
vercel --prod
# Or connect your GitHub repo:
# vercel.com/new → Import Repository → DeployCommunity Verdict
Based on upvoted notes🏆
Vercel wins this comparison
Trust Score 89 vs 80 · 9-point difference
Vercel leads on Trust Score with stronger signal data across downloads and community health. That said, the other tool is worth considering if your use case matches its specific strengths above.