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Top 23 JavaScript Fastify Projects
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nodejs-testing-best-practices
Beyond the basics of Node.js testing. Including a super-comprehensive best practices list and an example app (April 2025)
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SurveyJS
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Fastify allows you to set custom metadata for routes, and when combined with the fastify-swagger plugin, you can mark routes as deprecated in your OpenAPI documentation.
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fastify-example
This project is a small but feature complete application build with Fastify and Svelte, and it aims to show all the core concepts of Fastify, best practices, and recommendations.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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aws-lambda-fastify
Insipired by aws-serverless-express to work with Fastify with inject functionality
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Document API endpoints would be moved from Next.js routes to a specific monolithic service. We chose to use fastify, a Node.js framework known for its speed and low overhead. Combined with fastify-multipart and fastify-swagger, the API was quickly set up.
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@fastify/cors: Middleware for enabling Cross-Origin Resource Sharing (CORS).
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SaaSHub
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
JavaScript Fastify discussion
JavaScript Fastify related posts
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Managing Request-Scoped Data in Fastify
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Fastify now supports the Vite Environment API
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Fastify/Vite 8.0.0
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Fastify API with Postgres and Drizzle ORM
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Mercurius: A GraphQL HTTP Server for Fastify
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Deprecating Node JS REST APIs in 6 Frameworks
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Show HN: Fastify/Vue 1.0 Alpha
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A note from our sponsor - SaaSHub
www.saashub.com | 24 May 2025
Index
What are some of the best open-source Fastify projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | nodejs-testing-best-practices | 4,078 |
| 2 | mercurius | 2,429 |
| 3 | platformatic | 1,581 |
| 4 | fastify-vite | 1,051 |
| 5 | fastify-swagger | 997 |
| 6 | fastify-example | 747 |
| 7 | fastify-cli | 690 |
| 8 | benchmarks | 615 |
| 9 | fastify-nextjs | 545 |
| 10 | fastify-jwt | 540 |
| 11 | aws-lambda-fastify | 535 |
| 12 | fastify-rate-limit | 534 |
| 13 | fastify-multipart | 506 |
| 14 | fastify-static | 468 |
| 15 | fastify-cors | 450 |
| 16 | fastify-helmet | 429 |
| 17 | fastify-websocket | 431 |
| 18 | route-list | 393 |
| 19 | fastify-auth | 367 |
| 20 | fastify-http-proxy | 360 |
| 21 | point-of-view | 360 |
| 22 | fastify-autoload | 357 |
| 23 | fastify-oauth2 | 279 |
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