# AlexTatiyants/pev

Postgres Explain Visualizer

Repository: https://github.com/AlexTatiyants/pev
Canonical: https://ross.abutalabs.com/products/pev
Language: CSS
License: MIT
License Family: permissive
Last push: 2020-07-15T20:27:50+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3895, "days_push": 2240, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2803, forks 188 (observed 2026-08-28T04:07:22.729308+00:00)

## What it is
A web-based visualizer that turns PostgreSQL EXPLAIN query plan output into an interactive graphical representation. It is an Angular 2/TypeScript application designed to make query plans easier to understand.

## Use cases
- visualize postgres explain output
- understand slow query plans
- debug postgres query performance
- graphically inspect query execution plan
- analyze why a query is slow
- share explain plans with teammates

## When to choose
- you need a graphical tree view of a Postgres EXPLAIN plan
- you want a self-hosted alternative to explain.depesz.com
- you are tuning or debugging Postgres query performance

## When to avoid
- you need a maintained tool with recent updates (last release 2020)
- you use databases other than PostgreSQL
- you want a CLI or library integration rather than a web app

## Facets
- artifact type: application
- maturity: maintenance
- function: data-visualization, developer-tools
- domain: databases, developer-tools, data-visualization
- platform: cross-platform
- tags: postgres, explain-plan, query-optimization, angular, visualization, web-server, nodejs

## Member repositories
- AlexTatiyants/pev (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:22.729308+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 2026-08-30T08:14:31.261136+00:00, confidence not recorded.
  - readme: https://github.com/AlexTatiyants/pev (fetched 2026-08-28T04:07:22.729308+00:00, sha 8e6d2ec13079)
- Data as of 2026-08-30T08:39:29.467469+00:00.