Blog/Fly.io vs SST: Which Is Better in 2025?
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Fly.io vs SST: Which Is Better in 2025?

An honest comparison of Fly.io and SST — features, use cases, and which one fits your workflow.

Cyril Musila2026-03-082 min read

Fly.io vs SST: Which Is Better in 2025?

Whether you're just starting out or scaling up, the right tools matter. Trying to decide between Fly.io and SST? Here's what you need to know.

Overview

FeatureFly.ioSST
CategoryCloud & HostingCloud & Hosting
Focus Areasedge computing, hosting, global deploymentserverless, aws, iac
WebsiteFly.ioSST

Fly.io — What It Does

A platform for deploying full-stack applications and databases close to your users. It runs your code in lightweight Fir

Key strengths: edge computing, hosting, global deployment

SST — What It Does

A framework for building full-stack serverless applications on AWS. Deploy Next.js, Remix, Astro, and other frameworks w

Key strengths: serverless, aws, iac

Key Differences

While both tools operate in the Cloud & Hosting space, they take different approaches:

  • Fly.io focuses on edge computing, hosting, global deployment
  • SST focuses on serverless, aws, iac

Who Should Use Each Tool?

Choose Fly.io if you're a developers who needs edge computing capabilities.

Choose SST if you're a marketers looking for serverless features.

FAQ

Is Fly.io better than SST?

Neither is universally better — it depends on your specific needs. Fly.io excels at edge computing, while SST shines in serverless.

Can I use both Fly.io and SST together?

Yes, many professionals combine tools. Check each platform's integrations and API options.

Verdict

Both Fly.io and SST are solid choices in the Cloud & Hosting category. Test both with your actual workflow before committing to one.

Browse our full directory to discover tools that match your workflow.

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