Backspace is described as 'Self-hosted, open-source Discord alternative: voice, HD video, screen share up to 4K/120fps, and server-to-server federation. TypeScript, AGPL-3.0' and is an app in the social & communications category. There are more than 50 alternatives to Backspace for a variety of platforms, including Linux, Web-based, Windows, Mac and Android apps. The best Backspace alternative is Signal, which is both free and Open Source. Other great apps like Backspace are Telegram, Element, Discord and Matrix.
Anonymous chat, voice, and video platform using end-to-end encrypted messaging powered by X3DH and XSalsa20-Poly1305, supporting secure user communities and group conversations, with no personal data needed for registration or operation.
Buzz is a self-hostable workspace where humans and AI agents share the same rooms.
The best Discord alternative. Mezon is a Live, Work, and Play platform. It’s perfect for gaming and chilling with friends, or even building a global community. Customize your own space to talk, play, and hang out.
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.
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.
Free, privacy-focused chat platform for gaming communities offering servers, channels, roles, low-latency voice, video, screen sharing, 5GB uploads, message translation, end-to-end encrypted DMs and calls, forum features, calendar events, and no paid tiers.
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.
Decentralized chat platform built on the nostr protocol with support for multi-group communities, event calendars, threads, private messaging, web of trust, customizable access controls, monetization via zaps, full privacy, and white-label options for branding.
Private community chat with end-to-end encrypted channels and DMs, WebRTC calls, and signup without an email address or phone number.
Open-source chat platform providing community-focused group messaging, video calls, profile customization with animated avatars, custom emojis, tags, post creation, discovery of communities, and full source code access on GitHub. Entirely donation-funded.
![Profile Interface [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_993222_full.png)
![Messages View [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_281418_full.png)
![Server Discovery [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_282508_full.png)
![Server Settings [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_628028_full.png)
Colibri is an open source chat platform built on the AT protocol for communities big and small. It gives you the ability to create communities, manage members, and communicate through text, voice, and forum channels, all while maintaining true ownership of your data.
Undeafen is a social app where every post is a voice note. No photos, no videos. Your profile holds your voice notes the way an Instagram profile holds photos, and people reply in voice or text. It's where people share stories, opinions, advice, rants, even poems, anything...
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