# clinicjs/node-clinic

Clinic.js diagnoses your Node.js performance issues

Repository: https://github.com/clinicjs/node-clinic
Canonical: https://ross.abutalabs.com/products/node-clinic
Homepage: https://clinicjs.org
Language: JavaScript
License: MIT
License Family: permissive
Topics: nodejs
Last push: 2024-09-19T09:48:16+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3150, "days_push": 713, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5953, forks 132 (observed 2026-08-28T04:09:33.647335+00:00)

## What it is
Clinic.js is an open-source Node.js performance profiling suite that diagnoses issues like event-loop delays, I/O bottlenecks, and memory leaks. It wraps your server process, collects metrics under load, and generates visual reports with recommendations.

## Use cases
- diagnose node.js performance issues
- profile nodejs server cpu usage
- find event loop delays in node app
- detect memory leaks in node.js
- analyze i/o bottlenecks in node server
- generate flamegraphs for nodejs application

## When to choose
- you need to diagnose why a Node.js server is slow or unresponsive
- you want visual reports (doctor, bubbleprof, flame) with actionable recommendations
- you want to benchmark a server under load while profiling it

## When to avoid
- you need actively maintained tooling - the project is no longer actively maintained and may break with newer Node.js versions
- you need profiling for non-Node.js runtimes
- you need production/continuous monitoring rather than local diagnostics

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: benchmarking, monitoring, developer-tools, cli
- domain: developer-tools, performance
- platform: cli, cross-platform
- tags: profiling, performance-diagnostics, nodejs-profiling, flamegraph, event-loop, command-line, nodejs

## Member repositories
- clinicjs/node-clinic (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:33.647335+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:50:42.827548+00:00, confidence not recorded.
  - readme: https://github.com/clinicjs/node-clinic (fetched 2026-08-28T04:09:33.647335+00:00, sha 6ed024033285)
  - homepage: https://clinicjs.org (fetched 2026-08-29T08:46:25.402866+00:00, sha 44136fa355b3)
- Data as of 2026-08-30T08:39:29.467469+00:00.