SadnessChat is described as 'Free, real-time chat platform built for real conversations. Whether you're hanging out with friends or building a community, SadLounge has everything you need' and is a Group Chat app in the social & communications category. There are more than 50 alternatives to SadnessChat, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Android apps. The best SadnessChat alternative is Signal, which is both free and Open Source. Other great sites and apps similar to SadnessChat are Telegram, Element, Discord and Matrix.
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.
Embrace lag-free, secure voice chats with TeamSpeak, offering cross-platform compatibility and low CPU usage. Enjoy advanced audio controls, push-to-talk, in-game overlay, and security-focused privacy features, tailored for gamers seeking seamless communication.
Open source, decentralized platform enabling encrypted chat, secure voice and video calls, anonymous file sharing with swarming, censorship-resistant forums, channels, link sharing, and offline messaging. Uses OpenPGP and OpenSSL for robust privacy and security.
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.
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.
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.
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.
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.
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.
Enables real-time chat on Windows with group or private messaging, multi-server access, file transfers, encryption, proxy and IPv6 support, chat logging, notifications, dark mode, and a scripting language for custom automation or developing communication tools and games.
Open source group chat, voice, and video platform with self-hostable private servers, Discord compatibility, extensible plugin and theme system, end-to-end encryption, support for multiple instances, and community-driven development offering high flexibility.
Decentralized social and blog platform based on XMPP, enabling self-hosting, cross-network chat, video calls, and group collaboration. Users control and migrate their data, communicate across various networks, and access services from any node while preserving privacy and open-source principles.
United States
Germany
EU
United Kingdom
Switzerland
India
France