# dalibo/pev2

Postgres Explain Visualizer 2

Repository: https://github.com/dalibo/pev2
Canonical: https://ross.abutalabs.com/products/pev2
Homepage: https://explain.dalibo.com
Language: TypeScript
License: PostgreSQL
License Family: other
Topics: postgresql, explain
Last push: 2026-08-26T12:09:53+00:00

## Health v2 (maintenance only)
Score: 93/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 81, longevity 100
- inputs: {"age_days": 2585, "days_push": 7, "days_rel": 44, "gap_med": 33, "n_releases_24m": 14}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3575, forks 194 (observed 2026-08-28T04:08:10.810742+00:00)

## What it is
PEV2 is a Vue.js component that parses and graphically visualizes PostgreSQL EXPLAIN execution plans. It powers explain.dalibo.com and can also be used as a standalone offline HTML file or embedded in web applications.

## Use cases
- visualize postgres explain plan
- analyze slow query execution plans
- share postgres query plans with teammates
- embed explain plan viewer in a web app
- view postgres plans offline without uploading
- understand query planner costs and buffers

## When to choose
- you need a graphical, interactive view of PostgreSQL EXPLAIN (ANALYZE, BUFFERS) output
- you want to embed a plan visualizer as a Vue component in your own app
- you need an offline, no-network tool for sensitive plans via the standalone HTML file

## When to avoid
- you need plan visualization for databases other than PostgreSQL
- your frontend is not Vue-based and you don't want a UMD script dependency
- you only need quick text-based plan analysis, where explain.depesz.com may suffice

## Facets
- artifact type: library
- maturity: active
- function: data-visualization, ui-components, parser
- domain: databases, developer-tools, data-visualization, web-development
- platform: browser
- tags: postgresql, explain-plan, vuejs, query-optimization, database-performance, standalone-html, nodejs, web-server

## Member repositories
- dalibo/pev2 (main) score 93

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:10.810742+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 2026-08-29T18:34:02.913735+00:00, confidence not recorded.
  - readme: https://github.com/dalibo/pev2 (fetched 2026-08-28T04:08:10.810742+00:00, sha 29c37e32ffb2)
  - homepage: https://explain.dalibo.com (fetched 2026-08-29T09:27:55.455920+00:00, sha e08d69e88b26)
  - site_page: https://explain.dalibo.com/about (fetched 2026-08-29T09:27:55.465087+00:00, sha 4c1496a3ce98)
- Data as of 2026-08-30T08:39:29.467469+00:00.