Comparison

Elysia vs Fastify

On the evidence we track, Fastify leads this comparison with a composite score of 64/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Elysia58
Fastify64
Score
Vioscale score
Elysia58 / 100medium · 70%
Fastify64 / 100high · 78%
Pricing
Free tier
Elysia
Fastify
Model
Price level
Elysiafree
Fastifyfree
Integrations
Count
Elysia
Fastify17
Adoption
Dependent repos
Elysia45
Fastify16,712
Github stars
Elysia18,975
Fastify37,024
Package downloads weekly
Elysia1,043,958
Fastify
Activity
Commits last 30d
Elysia7
Fastify69
Release
Cadence days
Elysia9
Fastify3
History
Elysia20 items
Fastify20 items
License
Spdx
ElysiaMIT
FastifyMIT
Language
Primary

Capabilities

Feature-by-feature on the axes that matter for web frameworks. “-” means undocumented, not absent.

Core
Rendering model
Elysia-
Fastify-
File-based routing
Elysia-
Fastify-
Language
ElysiaTypeScript
FastifyJavaScript/TypeScript
Rendering
Server components
Elysia-
Fastify-
Streaming SSR
Elysia-
Fastify-
Fullstack
Built-in API / backend routes
Elysia
Fastify
DX
First-class TypeScript
Elysia
Fastify
Fast refresh / HMR
Elysia-
Fastify-
Deployment
Edge runtime support
Elysia-
Fastify-

What each one is

The product in its own terms, so the numbers below have context.

Elysia

A server-side TypeScript framework for building type-safe APIs with exceptional performance. Built on Bun runtime, it delivers significantly faster request handling than traditional Node frameworks through advanced type inference and validation.

Independently observed

Fastify

Leader

A Node.js web framework optimized to handle high request volumes with minimal overhead, featuring a plugin system, JSON Schema validation, and native TypeScript support.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Elysia

Open source
as of verify ↗

Fastify

Leader
Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
CLI
Elysia
Fastify
Deployment
Cloud / SaaS
Elysia
Fastify
Self-hosted
Elysia
Fastify
On-premise
Elysia
Fastify

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Elysia

Not documented yet.

Fastify

Leader
17 total
  • Next.js
  • Apollo Server
  • Angular
  • PostgreSQL
  • MongoDB
  • Redis
  • Elasticsearch
  • Swagger/OpenAPI
  • WebSocket
  • JWT
  • Helmet
  • Sentry
  • RabbitMQ
  • CORS
  • CSRF
  • OAuth2
  • Kubernetes
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.