# observing/thor

The WebSocket god of thunder

Repository: https://github.com/observing/thor
Canonical: https://ross.abutalabs.com/products/observing-thor
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2020-10-01T05:55:48+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4899, "days_push": 2162, "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 1302, forks 149 (observed 2026-08-28T04:04:18.190485+00:00)

## What it is
Thor is a Node.js CLI tool for benchmarking and load testing WebSocket servers. It generates large numbers of persistent WebSocket connections with configurable message traffic, filling a gap left by HTTP-only tools like ab and wrk.

## Use cases
- load test a websocket server with thousands of concurrent connections
- benchmark ws and wss endpoints
- stress test reverse proxies and load balancers handling websocket traffic
- send configurable message sizes and counts per connection
- generate custom websocket message payloads for testing

## When to choose
- you need to load test WebSocket servers rather than plain HTTP endpoints
- you want a simple CLI to open thousands of persistent ws/wss connections
- you need control over message count, size, protocol version, and concurrency

## When to avoid
- you need to benchmark regular HTTP request/response performance
- you want a maintained tool with recent updates and active development
- you need a GUI or detailed metrics dashboards rather than CLI output

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: benchmarking, load-testing, websocket, cli
- domain: developer-tools, testing, performance, web-development
- platform: cli, cross-platform
- tags: websocket-benchmarking, load-generator, stress-testing, nodejs

## Member repositories
- observing/thor (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:18.190485+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 2026-08-30T04:52:11.130067+00:00, confidence not recorded.
  - readme: https://github.com/observing/thor (fetched 2026-08-28T04:04:18.190485+00:00, sha 82051594a8eb)
  - registry_npm: https://registry.npmjs.org/thor (fetched 2026-08-29T12:09:47.052157+00:00, sha 1cb57b5aad55)
- Data as of 2026-08-30T08:39:29.467469+00:00.