What is 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.
Fastify pricing
We don't have Fastify's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Fastify does
The capabilities that matter for web frameworks, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Rendering model
- -
- File-based routing
- -
- Language
- JavaScript/TypeScript
- Server components
- -
- Streaming SSR
- -
- Built-in API / backend routes
- ✓
- First-class TypeScript
- ✓
- Fast refresh / HMR
- -
- Edge runtime support
- -
Platform & deployment
Independently observed- Self-hosted
Integrations (17)
Independently observed- Next.js
- Apollo Server
- Angular
- PostgreSQL
- MongoDB
- Redis
- Elasticsearch
- Swagger/OpenAPI
- WebSocket
- JWT
- Helmet
- Sentry
- RabbitMQ
- CORS
- CSRF
- OAuth2
- Kubernetes
Security & compliance
Known vulnerabilities: 10 (5 in the last 12 months), max severity HIGH sourcea count reflects scale & disclosure, not quality
Fastify alternatives
Other web frameworks we track, ranked by the same independent score.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Fastify, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Development activity | 58 | 0.12 | 7.0 | ✓ |
| Release cadence | 98 | 0.07 | 6.6 | ✓ |
| Dependent projects | 70 | 0.08 | 5.6 | ✓ |
| Capabilities | 46 | 0.10 | 4.5 | ✓ |
| Security score | 83 | 0.05 | 4.4 | ✓ |
| Price level | 100 | 0.04 | 4.0 | ✓ |
| Stars | 86 | 0.03 | 2.8 | ✓ |
| Integrations | 36 | 0.05 | 1.9 | ✓ |
| Pricing transparency | 25 | 0.05 | 1.3 | ✓ |
| Reliability | 0 | 0.05 | 0.0 | - |
| Security posture | 0 | 0.09 | 0.0 | - |
| Package downloads | 0 | 0.17 | 0.0 | - |
| Developer Q&A activity | 0 | 0.08 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 69 | mediumsource · 2026-08-26 · 65% |
Adoption
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Language: JavaScript/TypeScript · Api routes: Yes · Typescript first: Yes | mediumsource · 2026-08-16 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 17 | mediumsource · 2026-08-16 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | JavaScript | highsource · 2026-08-26 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-08-26 · 95% |