Top WHATSAPP GitHub Repositories & Tools (2026)

ZapFast: a fast, native WhatsApp client in Rust and egui

A Matrix-WhatsApp puppeting bridge

Open-source AI sales OS — self-hosted CRM with native AI agents + WhatsApp (WAHA). Open alternative to Kommo, Octadesk & Intercom for any business that sells by chat. MCP-ready, multi-tenant, LGPD.

Terminal-based messaging client for Linux and macOS with Telegram, WhatsApp and Signal support

DCTS is an ambitious project with the goal to offer absolute independence through software with a no-bullshit mindset completely for free and with a heavy focus on self-hosting, decentralization and ease of use.

A lightweight, efficient Ruby gem for interacting with Whatsapp Cloud API.

Useless WhatsApp Bot

Self-hosted notification infrastructure for product notifications. One API call handles email, SMS, push, and webhooks, with preferences, quiet hours, retries, fallback, scheduling, workflows, and delivery logs built in.

GOWA - WhatsApp REST API with support for UI, Multi Account, Webhooks, and MCP, and Chatwoot. Built with Golang for efficient memory use.

A typed, persistent WhatsApp Web client for pure PHP on PAM — no Node.js or Puppeteer.

WhatsApp REST API gateway in Rust. Multi-device and the official WhatsApp Cloud API behind one API: 230+ endpoints for messaging, templates, Flows, commerce, payments, calls, groups, webhooks and fleet ops. Multi-session, multi-DB, single binary.