# sigalor/whatsapp-web-reveng

Reverse engineering WhatsApp Web.

Repository: https://github.com/sigalor/whatsapp-web-reveng
Canonical: https://ross.abutalabs.com/products/whatsapp-web-reveng
Language: JavaScript
License: MIT
License Family: permissive
Topics: whatsapp, node, whatsapp-web, encryption, reverse-engineering
Last push: 2024-04-22T11:38:56+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": 3165, "days_push": 863, "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 6491, forks 848 (observed 2026-08-28T04:09:43.806175+00:00)

## What it is
A reverse-engineered description and Node.js re-implementation of the WhatsApp Web API, communicating over WebSockets with the same encryption and binary protobuf protocol. It serves as documentation and a foundation for building custom unofficial WhatsApp clients.

## Use cases
- send whatsapp messages programmatically without official api
- understand how whatsapp web protocol works
- build a custom whatsapp client in node.js
- intercept and analyze whatsapp web websocket traffic
- automate whatsapp messaging for research
- implement whatsapp web encryption curve25519 protobuf

## When to choose
- you need deep protocol-level understanding of WhatsApp Web internals
- you want a Node.js starting point for an unofficial WhatsApp client
- you are researching WhatsApp's WebSocket encryption and protobuf format

## When to avoid
- you need a reliable production messaging integration - the unofficial API can break anytime and risks account bans
- you want official support or stability guarantees
- your project requires maintained, up-to-date WhatsApp automation - consider official WhatsApp Business API instead

## Facets
- artifact type: library
- maturity: maintenance
- function: reverse-engineering, websocket, cryptography, http-client
- domain: reverse-engineering, messaging-platforms, security, developer-tools
- platform: python, windows
- tags: whatsapp, whatsapp-web, unofficial-api, messaging, protocol-analysis, qr-code-auth, nodejs, linux, macos

## Member repositories
- sigalor/whatsapp-web-reveng (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:43.806175+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 2026-08-29T17:44:31.558151+00:00, confidence not recorded.
  - readme: https://github.com/sigalor/whatsapp-web-reveng (fetched 2026-08-28T04:09:43.806175+00:00, sha 7a71217657ea)
- Data as of 2026-08-30T08:39:29.467469+00:00.