Altus is a desktop application that brings WhatsApp Web to your desktop with additional features and customization options. It provides a clean, native desktop experience for WhatsApp Web, with support for multiple accounts, themes, and enhanced functionality beyond the standard web interface.
Velix is a self-hosted WhatsApp API built in Go. Connect multiple WhatsApp numbers, send and receive messages via REST, get real-time webhooks, and integrate with n8n and Chatwoot out of the box.
WAHA (WhatsApp HTTP API) is a self-hosted, privacy-focused WhatsApp API that you can run in a click! It provides a REST API to send and receive WhatsApp messages, manage groups, channels, and status updates. WAHA runs a real instance of WhatsApp Web to avoid getting blocked and supports automation through HTTP API. The core version is completely free with no limits on messages or time, making it perfect for WhatsApp automation, chatbots, and integrations.