Fastify vs Ruby on Rails: Key Differences & When to Use Each

Comprehensive side-by-side comparison of features, pricing, and metrics

Key Differences

Compare Fastify and Ruby on Rails across features, pricing, integrations, and community metrics. Fastify / Ruby on Rails.

Feature

Fastify

Web Framework

Ruby on Rails

Web Framework

Side-by-side comparison of developer tools
Fast and low overhead web framework for Node.js
Full-stack web application framework
GitHub Stars
⭐ 36,565
⭐ 58,593
Contributors
👥 902
👥 7,020
Pricing
✓ Free
Enterprise: Contact sales
✓ Free
Enterprise: Contact sales
Languages
JavaScript
Ruby
Features
  • • Hacktoberfest
  • • Nodejs
  • • Performance
  • • Speed
  • • Webframework
  • • Activejob
  • • Activerecord
  • • Framework
  • • Html
  • • Mvc
Integrations
No integrations listed
No integrations listed
Momentum Score
38/100 (slowing)
60/100 (stable)
Community Health
63/100 (moderate)
81/100 (good)
Maturity Index
60/100 (growing)
93/100 (mature)
Innovation Score
59/100 (progressive)
91/100 (pioneering)
Risk Score (higher is safer)
61/100 (low)
94/100 (minimal)
Developer Experience
68/100 (fair)
80/100 (good)
Links
🌐 Visit Website View on GitHub
🌐 Visit Website View on GitHub

Fastify Strengths

Ruby on Rails Strengths

  • ✓ More popular (58,593 stars)
  • ✓ Larger community (7,020 contributors)

When to Use Fastify vs Ruby on Rails

Use Fastify when its strengths align better with your stack and team needs, and choose Ruby on Rails when its ecosystem, integrations, or cost profile is a better fit.

Related comparisons

Fastify vs Django → Ruby on Rails vs Django → Fastify vs Laravel → Ruby on Rails vs Laravel → Fastify vs Spring Boot → Ruby on Rails vs Spring Boot → Fastify vs Flask → Ruby on Rails vs Flask → Fastify vs Express.js → Ruby on Rails vs Express.js → Fastify vs Phoenix → Ruby on Rails vs Phoenix →

More Comparisons

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Data source: GitHub API

Last updated: 7/3/2026