MiniProfiler/rack-mini-profiler

Health v2 · maintenance only

Adoption not part of the score

3905 stars · 423 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Rack middleware that displays a speed badge on every HTML page with detailed performance profiling for Ruby web apps. It provides database query profiling, flamegraphs, and memory profiling, and works in both development and production.

Use cases

• profile SQL queries in a Rails app
• generate flamegraphs to find slow code paths
• measure per-request memory usage and GC stats
• monitor page load performance in production
• find slow database queries in a Ruby rack app

When to choose

• you run a Ruby or Rails rack-based web app and need in-app performance profiling
• you want database, call-stack, and memory profiling with minimal setup
• you need profiling that works in production as well as development

When to avoid

• your app is not Ruby or not rack-based
• you need distributed tracing across services rather than per-request profiling
• you only need external uptime or APM monitoring without code-level detail

Facets

library · maturity active

monitoring tracing benchmarking middleware developer-tools web-development performance backend ruby profiling rack-middleware flamegraphs memory-profiling database-profiling rails web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="MiniProfiler/rack-mini-profiler")