Open Source Alternatives to WhatsApp

A messaging and calling application that enables users to send text messages, make voice and video calls, and share files. The software is designed for individuals and businesses to communicate across mobile and desktop devices. It supports group chats and utilizes end to end encryption for private conversations to ensure data privacy. The product is deployed as a downloadable application for various operating systems including Android, iOS, Windows, and macOS. Users can synchronize their conversations across devices to maintain a continuous communication stream. The platform also provides tools for businesses to manage customer interactions and broadcast updates to their clients. It operates using an internet connection to transmit data and media. The application is available for global use across different regions.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to WhatsApp give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 6 open source alternatives to WhatsApp. The most popular are Signal, SimpleX Chat and Tinode. Most use the AGPL-3.0 or GPL-3.0 license, and 6 offer an official Docker image.