SST

Framework that makes it easy to build modern full-stack applications on your own infrastructure.

Overview

SST is a framework that makes it easy to build modern full-stack applications on your own infrastructure. Your entire app is defined in code—in a single `sst.config.ts` file—including databases, buckets, queues, webhooks, and integrations with 150+ providers.

What sets SST apart is its developer-focused approach. It provides high-level components for common features (Next.js, Remix, Astro, databases, email, etc.), automatic resource linking so you don't hardcode configuration, and a unified local development environment that deploys infrastructure changes, runs functions live, and connects your frontend and backend together.

SST is built on top of Pulumi and supports both AWS and Cloudflare as primary providers, with the ability to use components from any Pulumi or Terraform provider.

Key features

Code-first infrastructure definition in TypeScript
150+ built-in and provider components
Automatic resource linking between app and infrastructure
Unified local dev environment with live function reloading
Support for AWS and Cloudflare providers
Drop-in mode and monorepo support
CLI with dev, deploy, and staging commands
SST Console for auto-deployment and monitoring

Pros

Define entire app in single config file
High-level components abstract away infrastructure complexity
Automatic resource linking eliminates hardcoding
Unified dev environment for frontend and backend
Extensive provider support (150+)
Open-source core with optional paid Console service

Cons

Primarily focused on AWS and Cloudflare (other providers via Pulumi)
Requires TypeScript knowledge
Learning curve for developers unfamiliar with infrastructure concepts
Console features are optional SaaS offering

Use this if

You want to build full-stack applications with infrastructure defined in code, prefer a developer-friendly abstraction over raw IaC tools, or need tight integration between your app and cloud resources.

Skip this if

You need a purely frontend framework, prefer visual infrastructure management, or want to avoid TypeScript and code-based configuration.

Best for

Building full-stack applications on AWS or CloudflareDevelopers who want infrastructure as code without DevOps complexityTeams using Next.js, Remix, Astro, or other modern frameworksProjects requiring custom infrastructure with databases, queues, and APIsMonorepo setups with frontend, backend, and serverless functions

Alternatives

AWS CDKPulumiTerraformServerless FrameworkVercelNetlify

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