Comparison

Deno Fresh vs Fastify

On the evidence we track, Fastify leads this comparison with a composite score of 70/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Deno Fresh43
★Fastify70
Score
vioscaleAI score
Deno Fresh43 / 100medium · 55%
Fastify70 / 100high · 78%
Pricing
Free tier
Deno Fresh✓
Fastify✓
Model
Deno Freshcommercial
Fastifycommercial
Price level
Deno Freshfree
Fastifyfree
Integrations
Count
Deno Fresh–
Fastify28
Adoption
Dependent repos
Deno Fresh0
Fastify16,712
Github stars
Deno Fresh13,792
Fastify37,232
Activity
Commits last 30d
Deno Fresh0
Fastify20
Release
Cadence days
Deno Fresh10
Fastify4
History
Deno Fresh20 items
Fastify20 items
License
Spdx
Deno FreshMIT
FastifyMIT
Language
Primary
Deno FreshTypeScript
FastifyJavaScript
Content
Faq
Deno Fresh5 items
Fastify6 items

Capabilities

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

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

What each one is

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

Deno Fresh

Fresh is a server-rendering web framework built on Deno that eliminates unnecessary client-side JavaScript by default, allowing developers to write interactive features as isolated 'islands' that hydrate only when required. It provides file-based routing, built-in component support, and deploys efficiently across multiple platforms including edge networks.

Independently observed

Fastify

Leader

A Node.js web framework emphasizing fast request handling and low resource consumption while maintaining strong security, input validation, and developer experience.

Independently observed

Pricing

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

Deno Fresh

Open sourceFree tier
as of verify ↗

Fastify

Leader
Open source
as of verify ↗

Platform & deployment

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

Platforms
Web
Deno Fresh✓
Fastify✓
CLI
Deno Fresh✓
Fastify✓
Deployment
Cloud / SaaS
Deno Fresh✓
Fastify✓
Self-hosted
Deno Fresh✓
Fastify✗

Integrations

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

Deno Fresh

Not documented yet.

Fastify

Leader
40 total
  • Next.js
  • Apollo Server
  • Angular
  • PostgreSQL
  • MongoDB
  • Redis
  • Elasticsearch
  • Swagger/OpenAPI
  • WebSocket
  • JWT
  • Helmet
  • Sentry
  • RabbitMQ
  • CORS
  • CSRF
  • OAuth2
  • Kubernetes
  • Firebase
  • Mongoose
  • TypeORM
  • OAuth
  • GraphQL
  • Swagger
  • OpenAPI
  • +16 more
Independently observed
Still deciding?

Deno Fresh or Fastify: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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