# davidmarkclements/0x

🔥 single-command flamegraph profiling 🔥

Repository: https://github.com/davidmarkclements/0x
Canonical: https://ross.abutalabs.com/products/0x
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2025-09-30T08:30:19+00:00

## Health v2 (maintenance only)
Score: 43/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 44, release rhythm 8, longevity 100
- inputs: {"age_days": 3845, "days_push": 337, "days_rel": 422, "gap_med": 230, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3548, forks 114 (observed 2026-08-28T04:08:09.470070+00:00)

## What it is
0x is a single-command Node.js profiling tool that generates interactive flamegraphs from stack traces. It wraps any Node process, captures CPU stacks, and produces a self-contained flamegraph.html visualization.

## Use cases
- profile a node.js app and generate a flamegraph
- find cpu bottlenecks and hot paths in my code
- load test a server and profile it in one command
- visualize stack traces of a node process
- profile a production node server
- generate flamegraphs on any platform node runs on

## When to choose
- you need quick, zero-config CPU profiling of Node.js v20+ processes
- you want interactive flamegraphs viewable in Chrome with a single command
- you need to profile under load using tools like autocannon via the --on-port flag

## When to avoid
- you need heap/memory profiling rather than CPU stack sampling
- you are profiling non-Node.js runtimes or languages
- you require continuous production A-style profiling rather than on-demand capture

## Facets
- artifact type: cli-tool
- maturity: active
- function: benchmarking, monitoring, developer-tools, cli
- domain: developer-tools, performance
- platform: cli, cross-platform, windows
- tags: flamegraph, profiling, nodejs, stack-traces, performance-analysis, command-line, macos, linux

## Member repositories
- davidmarkclements/0x (main) score 43

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:09.470070+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 2026-08-29T18:34:23.098969+00:00, confidence not recorded.
  - readme: https://github.com/davidmarkclements/0x (fetched 2026-08-28T04:08:09.470070+00:00, sha 6fc634599539)
  - registry_npm: https://registry.npmjs.org/0x (fetched 2026-08-29T09:28:42.441345+00:00, sha 8e8b0009b57d)
- Data as of 2026-08-30T08:39:29.467469+00:00.