Alternatives / WhatsApp
Signal offers a centralized privacy-focused messaging network with end-to-end encryption enabled by default. Twake Chat uses the open Matrix protocol, allowing independently operated servers to communicate through federation.
Written by Maxime DERAME
Last updated:
Signal operates a centralized service: users of the official application communicate through infrastructure operated for Signal, and independent servers do not federate with the official network. Twake Chat uses Matrix, which separates clients from the communication network. Organizations can run their own homeserver and communicate with users on other compatible servers when federation is enabled, in a model conceptually closer to email.
Signal is the more direct replacement for WhatsApp. Both provide private messages, group chats, voice messages, media sharing, voice and video calls, desktop access, and end-to-end encryption. Signal is operated by a nonprofit and publishes its clients, server, and cryptographic libraries. For users who do not want to operate infrastructure, Signal provides a more conventional migration path than self-hosted Matrix.
Matrix is an open communication protocol rather than a single messaging application. Twake Chat is one client in that ecosystem. Users and organizations can choose a client, homeserver, and hosting provider, including self-hosting, and decide whether to federate with other servers. This flexibility can support interoperability and digital sovereignty but brings more operational and user-facing complexity.
Both alternatives support end-to-end encrypted conversations. Signal enables encryption by default using the Signal Protocol and related privacy-preserving components. Twake Chat uses Matrix encryption, device verification, and cross-signing. Encryption does not make the systems identical: account identifiers, server operation, federation, and metadata handling differ.
Signal publishes Android, iOS, desktop, server, and cryptographic library source code, but its official network remains centralized. Running published server code does not create a simple federated connection to users of the official Signal service. Twake Chat and Matrix were designed around independently operated servers that can communicate through federation.
People consider WhatsApp alternatives for open-source software, less dependence on Meta, protocol transparency, federation, self-hosting, and greater data sovereignty. WhatsApp already provides end-to-end encryption for personal messages and calls, so the key differences are network ownership, phone-number requirements, metadata, federation, server control, and the size of the user network.
| Alternative | License | Architecture | GitHub popularity | E2EE | Federation | Self-hosting |
|---|---|---|---|---|---|---|
| Signal | AGPL-3.0 | Centralized | ~29.4k Android / ~16.6k Desktop | Yes | No | Server source available; official network centralized |
| Twake Chat | AGPL-3.0 | Matrix / federated | ~166 | Yes | Yes | Yes, with Matrix homeserver |
Want the closest open-source alternative to WhatsApp
Signal has a familiar mobile-first experience with private messages, group chats, calls, disappearing messages, media sharing, and desktop applications.
Want a decentralized communication network
Twake Chat uses Matrix, allowing organizations to operate homeservers and communicate with users on other compatible servers when federation is enabled.
Want encrypted messaging without running a server
Signal uses its managed service, so users can install the application and message without operating infrastructure.
Want control over messaging infrastructure
Twake Chat with a Matrix homeserver gives an organization more control over hosting and data location, with additional operating complexity.
Need federation between organizations
Matrix is designed for independent servers to communicate when federation is enabled.
Want the larger, more established privacy messenger
Signal has a much larger development and user ecosystem, many years of operation, and active development across clients, server, and cryptographic libraries.
Want an open protocol with multiple compatible clients
Twake Chat is a Matrix client and can interoperate with compatible applications such as Element, Nheko, and NeoChat.