# johnbillion/query-monitor

The developer tools panel for WordPress and WooCommerce

Repository: https://github.com/johnbillion/query-monitor
Canonical: https://ross.abutalabs.com/products/query-monitor
Homepage: https://querymonitor.com
Language: PHP
License: GPL-2.0
License Family: copyleft
Topics: wordpress-plugin, wordpress, performance, query-monitor, debugging, dev-tools, woocommerce
Last push: 2026-08-19T21:45:41+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 89, longevity 100
- inputs: {"age_days": 5269, "days_push": 14, "days_rel": 74, "gap_med": 2, "n_releases_24m": 18}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1770, forks 244 (observed 2026-08-28T04:05:33.999530+00:00)

## What it is
Query Monitor is a WordPress and WooCommerce plugin that adds a developer tools panel for debugging database queries, PHP errors, hooks, blocks, enqueued assets, and HTTP API calls. It aggregates and filters its output by plugin, theme, or function to help identify poorly performing components.

## Use cases
- debug slow WordPress page loads
- find which plugin is making the most database queries
- track down PHP warnings and deprecated function usage
- inspect hooks and action callbacks during a request
- debug Ajax and REST API calls
- identify slow or duplicate SQL queries
- see which template files and blocks render on a page

## When to choose
- you develop or maintain WordPress or WooCommerce sites and need in-request debugging
- you need to attribute performance problems to specific plugins, themes, or functions
- you want a free, enterprise-trusted profiling tool on WordPress VIP or similar platforms

## When to avoid
- you need historical or cross-request performance monitoring rather than per-page-load data
- your stack is not WordPress-based
- you need application performance monitoring in production for all users rather than admin-only debugging

## Facets
- artifact type: plugin
- maturity: stable
- function: monitoring, logging, developer-tools, benchmarking
- domain: developer-tools, cms, performance
- platform: php, self-hosted
- tags: wordpress-plugin, woocommerce, debugging-panel, database-queries, php-errors, dev-tools, debugging, web-server

## Member repositories
- johnbillion/query-monitor (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:33.999530+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 2026-08-30T03:26:03.379562+00:00, confidence not recorded.
  - readme: https://github.com/johnbillion/query-monitor (fetched 2026-08-28T04:05:33.999530+00:00, sha 2c883c5b3473)
  - homepage: https://querymonitor.com (fetched 2026-08-29T11:04:26.963911+00:00, sha df7191e6439d)
  - site_page: https://querymonitor.com/about (fetched 2026-08-29T11:04:26.975015+00:00, sha 69b21334c35e)
  - site_page: https://querymonitor.com/wordpress-debugging/how-to-use (fetched 2026-08-29T11:04:26.972831+00:00, sha aa07ef2e630a)
- Data as of 2026-08-30T08:39:29.467469+00:00.