Apps similar to Matrix include Signal, which is free and open source. Other options are Telegram, Element, Discord and Stoat Chat. There's no shortage of Group Chat Apps like Matrix, with more than 100 alternatives for Android, the web, Linux, Windows and Mac.
It is the brand new, and fastest ever, Matrix client. It is for personal and community use, and will support enterprise functionality later this year.
United Kingdom
Hyphanet (former Freenet) is free software which lets you anonymously share files, browse and publish "freesites".
Self-hosted collaboration platform featuring chat, workflow automation, voice and video calling, screen sharing, AI capabilities, broad third-party integration support, cross-platform apps, compatibility with Slack imports, and flexible deployment options for secure team communication.
United States
Open-source chat server supporting real-time group, direct, and private messaging, video calls, file sharing, helpdesk chat, API integrations, desktop notifications, emojis, LDAP authentication, cross-platform apps, and customizable extensions for teams.
United States
Encrypted messenger supporting multi-platform access, unlimited group and private chats, file and voice message sharing, decentralized operation, open-source code, custom themes including dark mode, advanced moderation, push notifications, and no advertisements.
Switzerland
Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved easy encryption [OTR, OMEMO, or GPG].
Germany
EU
Lightweight communication platform with unlimited channels, seamless voice and video, screen sharing, private file sharing, advanced task and calendar tools, robust privacy features, emoji and thread support, and multi-platform efficiency for gaming or team communities.
Matrix client supporting decentralized, secure chats with end-to-end encryption, open-source development, organized navigation for channels and DMs, minimal clutter, adaptive elegant interface, calm visuals, and continuous feature updates for private, modern messaging.
India
Peer-to-peer group chatting over Tor and IPFS, with local-first encrypted messaging and no central servers, offers privacy-focused decentralized collaboration for teams, supporting desktop and mobile. FOSS, open to contributors, and avoids surveillance-based tracking.
United States
XMPP, or Extensible Messaging and Presence Protocol, is an open standard for instant messaging and real-time communication, allowing for message exchanges between any two entities on the Internet. It's known for its decentralized and extensible nature.
I2P (Invisible Internet Protocol) is a universal anonymous network layer. All communications over I2P are anonymous and end-to-end encrypted, participants don't reveal their real IP addresses.
Switzerland
Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network. Berty is a privacy-first messaging application built on top of the Berty Protocol.
FranceEU
