# janodvarko/harviewer

HAR Viewer is a web application that allows visualizing  HTTP Archive logs (HARs)

Repository: https://github.com/janodvarko/harviewer
Canonical: https://ross.abutalabs.com/products/harviewer
Homepage: http://www.softwareishard.com/blog/har-viewer/
Language: JavaScript
License Family: other
Last push: 2022-11-25T22:54:43+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": 5300, "days_push": 1377, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1074, forks 187 (observed 2026-08-28T04:03:29.022763+00:00)

## What it is
HAR Viewer is a web application for visualizing HTTP Archive (HAR) files, which log HTTP client/server conversations captured by HTTP tracking tools. It renders request details, transferred-data statistics, and page-load timelines, and can be self-hosted or used via public hosted instances.

## Use cases
- visualize HAR files from browser dev tools
- analyze page load performance from HTTP archive logs
- inspect HTTP request and response details in a HAR log
- view a timeline of multiple page loads in a HAR file
- explore the JSON structure of a HAR file as a tree
- validate HAR files against the HAR JSON schema
- self-host a tool to preview HAR logs shared by a team

## When to choose
- you need a browser-based, self-hostable viewer for HAR files
- you want statistics and page-load timelines from HTTP traffic logs
- you need to inspect every field stored in a HAR log interactively

## When to avoid
- you need live network capture rather than viewing saved HAR files
- you need actively maintained tooling with recent releases and support
- you need a desktop-native or CLI HAR analyzer

## Facets
- artifact type: application
- maturity: maintenance
- function: data-visualization, analytics, developer-tools, json
- domain: developer-tools, web-development, analytics, performance
- platform: browser
- tags: har, http-archive, network-debugging, page-load-performance, web-performance, drag-and-drop, jsonp, web-server, javascript, nodejs

## Member repositories
- janodvarko/harviewer (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:29.022763+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 2026-08-30T06:53:31.589197+00:00, confidence not recorded.
  - readme: https://github.com/janodvarko/harviewer (fetched 2026-08-28T04:03:29.022763+00:00, sha e8ac07162a3c)
  - homepage: http://www.softwareishard.com/blog/har-viewer/ (fetched 2026-08-29T12:55:14.605035+00:00, sha f5d6934b90c3)
  - site_page: http://www.softwareishard.com/blog/about (fetched 2026-08-29T12:55:14.608645+00:00, sha e49aee8c087f)
  - site_page: http://www.softwareishard.com/blog/category/documentation (fetched 2026-08-29T12:55:14.611682+00:00, sha 0f7f5504da10)
- Data as of 2026-08-30T08:39:29.467469+00:00.