Fastify
Fast and low overhead web framework, for Node.js
Overview
Fastify is a fast and low overhead web framework for Node.js, designed to provide a highly performant and extensible server foundation via plugins, hooks, and decorators. It recommends a schema-based approach using JSON Schema for route validation and response serialization, and commonly uses Pino for logging. Fastify also provides guidance for running Fastify in serverless and container-based platforms (e.g., AWS Lambda, Google Cloud Run, Vercel, Netlify Lambda).\n\nNote: Fastify is a backend web framework (not a UI rendering framework), so it does not provide CSR/SSR/SSG/ISR rendering modes as a built-in concept."
High-performance APIs, Microservices, Real-time apps
MIT
Quick Start
Create a new JavaScript file for your server (for example, server.js), Instantiate Fastify with logging enabled. Register a GET route that returns a JSON object. Start the server by calling fastify.listen on a port (for example, 3000)., Run the server with Node.js. Open the local address in your browser or call the endpoint with curl.
Key Features
Schema Validation
Serialization
Plugins
Hooks
TypeScript Support
Pros & Cons
Pros
- Very fast
- Great TypeScript support
- Built-in validation
Cons
- Smaller ecosystem than Express
- Different patterns to learn
Common Use Cases
Compatible CMS
Compatible Cloud Servers
Find Fastify Experts
Looking for professional help with your Fastify project? Here are top certified agencies and developers.
Top Agencies
Alpina Tech
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