Fastify GitHub Repositories (2026) · Open Source Tools

Fast and low overhead web framework, for Node.js

JSON Schema validator that compiles to plain JavaScript, still runs where code generation is blocked, and can be compiled away at build time. Passes the full official test suite. https://socket.dev/npm/package/ata-validator

Fastify 5 application boilerplate based on clean architecture, domain-driven design, CQRS, functional programming, vertical slice architecture for building production-grade applications 🚀

Official JavaScript repository for Clerk authentication

Platformatic Open Source monorepo!

Open source implementation of the Turborepo custom remote cache server.

Pulsarr: Real-time Plex watchlist monitoring and content acquisition tool. Seamlessly sync Plex watchlists with Sonarr and Radarr, featuring intelligent predicated content routing, multi-instance support, Discord, and Apprise notifications. Automate your media library management with a modern, user-friendly interface.

Effortless monitoring and analytics for API frameworks.

Fast and low overhead web framework fastify benchmarks

JWT utils for Fastify

React server side rendering support for Fastify with Next

Fastify CORS

basic websocket support for fastify

Template rendering plugin for Fastify

A Fastify plugin to add cookies support

Express compatibility layer for Fastify

A plugin for the Fastify webserver to autogenerate a Fastify configuration based on a OpenApi(v2/v3) specification.

Fastify plugin to check environment variables

A Type Provider for Typebox

Implement GraphQL servers and gateways with Fastify