Matrix is described as 'Open protocol for decentralized, end-to-end encrypted communication supporting instant messaging, VoIP, IoT, data persistence, and silos bridging over federated servers' and is a very popular instant messenger in the social & communications category. There are more than 100 alternatives to Matrix for a variety of platforms, including Android, Web-based, Linux, Windows and Mac apps. The best Matrix alternative is Signal, which is both free and Open Source. Other great apps like Matrix are Telegram, Element, Discord and Pidgin.
signal-cli is a commandline interface for the Signal messenger. It supports registering, verifying, sending and receiving messages. signal-cli uses a patched libsignal-service-java, extracted from the Signal-Android source code.
EchoId is a privacy-focused messaging platform designed for secure and real-time communication. It combines encrypted messaging, voice/video calling, and a lightweight architecture to deliver a fast and reliable chat experience.
India
Twake Chat is a secure, open source messaging platform designed for enterprises. It offers seamless integration of chat, video conferencing, file sharing, and email, and more.
France
EU
With BiP, you can send pictures and videos, documents, audio files, locations as well as text messages. Holding the microphone button is enough to send the audio recording.?
Türkiye
WorkDo is an all-in-one app to make teamwork effortless with features that allow you to collaborate easily with your teammates. It is specifically designed to make business management a breeze.
United States
A private, dedicated, tailor-made, secure and encrypted communication solution for secure calls, messages and file sharing with anyone, anywhere for C.E.O and V.I.P
Dirc is a peer-to-peer web application which uses WebRTC to set up connections between chat participants without requiring a back-end server. The static files can be self-hosted. Other features:
Boltgram is a fast, secure and nice messaging app that uses Telegram’s API. You can enjoy all the features of Telegram, such as end-to-end encryption, cloud-based storage, group chats, channels, bots, stickers, and more. But that’s not all.
Self-hostable open-source chat solution offering text, voice, and video with fine-grained roles, forum threads, DM workspace, browser soundboard, custom emoji, PWA offline support, push notifications, analytics tools, and advanced moderation capabilities.
United States
Brand your online video calls, meetings, and conference room in seconds. All done in the browser. No download and installation required. FREE for 2 months!.
United Kingdom
Peer-to-peer messenger with real-time encrypted chat, secure file transfer, retro-inspired lightweight interface, no central servers, and only username and password retained for privacy. Built in C++ using modern cryptography and minimalist resource usage.
Australia
The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications.
Germany
