Category
Real time conversation, calls, and the shared rooms teams work in.
35 products, 30 Projects: 24 open source, 0 source-available, 6 unresolved-license
Channel based team messaging with a large integration ecosystem
Slack replaced internal email for a generation of companies by making conversation searchable and public by default. Channels, threads, and a very large app directory are the shape most team chat now copies.
Voice, video, and text communities organised into servers
Discord was built for people who wanted to talk while doing something else, and that origin still shapes it. Persistent voice rooms you drop into, rather than scheduled calls, is a genuinely different model from workplace chat.
Asynchronous screen and camera recording shared by link
Loom's contribution was the workflow, not the recording. Stop the recording and the link is already on your clipboard, which is what made replacing a meeting with a three minute video actually happen.
Chat, calls, and files bundled into Microsoft 365
Teams wins on bundling rather than on craft. If an organisation already pays for Microsoft 365, Teams arrives at no additional cost with identity, files, and calendar already wired together.
Video meetings that hold up on a bad connection
Zoom won on the least glamorous quality possible: calls connected, and kept working on poor networks when competitors did not. Everything else it has added sits on top of that reliability.
Open-source community platform for discussion, chat, and support
Discourse is a self-hosted community platform that combines threaded discussion with built-in chat, search, and moderation tools.
Self-hosted secure team chat for mission-critical organizations
Rocket.Chat is a self-hosted team chat platform with a Slack data importer, end-to-end encryption, and cloud, on-premises, or air-gapped deployment.
Self-hosted team workspace where humans and AI agents share rooms
Buzz is a self-hosted team workspace where people and AI agents share the same channels, built by Block on a Nostr relay event log.
Team messaging for organisations that cannot use hosted chat
Mattermost is channel-based team chat designed for environments where the message history has to stay inside a boundary: defence, healthcare, and regulated finance are its natural constituency.
Open-source local AI meeting notes for macOS and Windows
Meetily is an MIT-licensed, open-source meeting assistant for macOS and Windows that transcribes on-device and drafts minutes, summaries, and action items privately.
Private messenger with end-to-end encrypted messaging and calls
Signal is a free, nonprofit messenger with end-to-end encrypted texts, calls, and group chats across Android, iOS, and desktop.
Open-source workspace combining tracker, docs, chat, and CRM.
Huly is an open-source project management platform combining issue tracking, documents, team chat, and CRM in one self-hosted EPL-2.0 workspace.
Video meetings with no account and no install
Jitsi Meet gets to a working video call faster than anything else: open a URL, share it, done. No accounts, no downloads, no meeting identifiers to read out.
Open-source team chat with topic threads for focused teamwork
Zulip is an open-source team chat platform that organizes conversations into streams and topics so distributed teams can follow many discussions without losing track.
Customer conversations from every channel in one inbox
Chatwoot collects website chat, email, WhatsApp, Instagram, and SMS into a single agent inbox with shared assignment, canned replies, and a help centre.
Free, open-source forum software with a rich extension ecosystem
Flarum is a free, MIT-licensed forum platform you install on your own PHP server and shape with community-built extensions.
Real-time Node.js forum software for online communities
NodeBB is a self-hosted, GPL-3.0 community forum platform built on Node.js with real-time chat, notifications, and federated sharing.
End-to-end encrypted team messenger built on Matrix
Element is an end-to-end encrypted messenger for teams and communities, built on the open Matrix protocol with chat, voice and video calls.
Free open-source chat with voice, video, and self-hosting for communities
Fluxer is a free, self-hostable chat and VoIP app for friends, groups, and communities, with channels, voice, video, and screen sharing.
Open-source virtual office where avatars trigger proximity video chat
WorkAdventure is a customizable 2D virtual office where teams meet as avatars. A video chat starts automatically when avatars approach each other.
Local-first workspace combining chat, pages, databases, and files.
Colanode is a local-first collaboration workspace combining real-time chat, rich-text pages, databases, and files.
Self-hosted group chat with rooms, DMs, and @mentions
Campfire is a self-hosted group chat system with rooms, direct messages, @mentions, search, and file attachments, built by 37signals.
Simple, elegant Matrix chat with end-to-end encryption
Cinny is an open-source Matrix client with a simple, elegant interface for encrypted direct messages and group conversations.
35 results