Comparison

Fastify vs SvelteKit

No clear leader: SvelteKit (68.7) and Fastify (63.9) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Fastify64
SvelteKit69
Score
Vioscale score
Fastify64 / 100high · 78%
SvelteKit69 / 100medium · 68%
Pricing
Free tier
Fastify
SvelteKit
Model
Fastifycommercial
SvelteKitopen_source
Price level
Fastifyfree
SvelteKitfree
Transparent
Fastify
SvelteKit
Integrations
Count
Fastify17
SvelteKit
Adoption
Dependent repos
Fastify16,712
SvelteKit56,439
Github stars
Fastify37,024
SvelteKit87,991
Activity
Commits last 30d
Fastify69
SvelteKit87
Release
Cadence days
Fastify3
SvelteKit3
History
Fastify20 items
SvelteKit20 items
License
Spdx
FastifyMIT
SvelteKitMIT
Language
Primary
FastifyJavaScript
SvelteKitJavaScript
Market
Availability
Fastify

Capabilities

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

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

What each one is

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

Fastify

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

SvelteKit

Svelte is a framework that compiles components into minimal browser code, enabling developers to create performant web applications with less boilerplate and smaller bundle sizes.

Independently observed

Pricing

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

Fastify

Open sourceFree tier
as of verify ↗

SvelteKit

Open sourceFree tier

Free and open source (MIT license)

as of verify ↗

Platform & deployment

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

Platforms
Web
Fastify
SvelteKit
Deployment
Self-hosted
Fastify
SvelteKit

Integrations

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

Fastify

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

SvelteKit

Not documented yet.

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