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Forums & Community

Bridge that interacts with Fediverse on behalf of your static site.

AI Chat & Voice Agents

Chat client for models on HuggingFace

Video & Voice

WebRTC application that uses Jitsi Videobridge to provide high quality, scalable video conferences.

Email Clients

Email archiving solution with full-text search and eDiscovery search features.

Forums & Community

Q&A-based community knowledge-sharing software.

Forums & Community

Lightweight and simple comment engine, which doesn't spy on users. It can be embedded into blogs, articles or any other place where readers…

Video & Voice

Screego is a simple tool to quickly share your screen to one or multiple people via web browser.

Team Chat & Messaging

All-in-one Dockerized easy XMPP solution, including web admin and clients.

Team Chat & Messaging

Fast, light and extensible chat client.

Team Chat & Messaging

Realtime server for reliable two-way communication over WebSockets, Server-sent events, etc.

Forums & Community

Comment system built in Golang, providing a lightweight and highly customizable solution for adding comments to your website.

Email Infrastructure

Omni-channel customer engagement and messaging automation platform (alternative to Braze, Customer.io, Iterable).

Team Chat & Messaging

A federated, end-to-end encrypted chat client built on Matrix. Run on the public network, your own server, or a corporate one - same client…

Forums & Community

Delightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again.

Customer Support & Live Chat

Email-based customer support application, help desk and shared mailbox (alternative to Zendesk and Help Scout).

Team Chat & Messaging

Software framework for decentralized, peer-to-peer networking.

Customer Support & Live Chat

Customer messaging platform for live chat, bots, and targeted emails.

Video & Voice

General-purpose, lightweight, minimalist WebRTC Server.

Email Clients

Email tracker, read receipt and spy pixel blocker plugin for Apple Mail

Email Infrastructure

Mail hosting and management platform including a modern and simplified web user interface.

Email Infrastructure

Complete and fully featured mail server for use by websites & web servers.

Video & Voice

A mac app to draw on your screen while on calls, highlight your cursor, and more. ![App Store][app-store Icon]

Team Chat & Messaging

Private and anonymous instant messaging over tor

Email Clients

Simple, modern, lightweight & fast web-based email client (fork of RainLoop).

AI Chat & Voice Agents

Open-source launcher with Raycast-compatible extensions, voice workflows, text-to-speech, memory, and AI actions.

Team Chat & Messaging

Self-hosted web IRC client.

Email Clients

Encrypted email focused on security and privacy.

Team Chat & Messaging

High-performance and feature-rich chat server for Matrix, and the successor to conduwuit (fork of Conduit).

Team Chat & Messaging

Third-party privacy-focused Facebook Messenger app. ![Open-Source Software][OSS Icon] ![Freeware][Freeware Icon]

Forums & Community

Lightweight commenting server written in Python and Javascript. It aims to be a drop-in replacement for Disqus.

Team Chat & Messaging

The Next-Gen Collaboration Suite. All your chats, meetings, calendars, docs, and emails in one place. ![Freeware][Freeware Icon]

Forums & Community

Collaborative decision-making tool that makes it easy for anyone to participate in decisions which affect them.

Video & Voice

Simple, secure, fast real-time video conferences up to 4k and 60fps, compatible with all browsers and platforms.

Video & Voice

Simple, secure, scalable real-time video conferences up to 4k, compatible with all browsers and platforms.

Forums & Community

Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible.

Team Chat & Messaging

Messaging app with a focus on speed and security

Video & Voice

Easy to use but advanced IP PBX system, VoIP gateway and conference server.

AI Chat & Voice Agents

AI chat client

AI Email & Productivity

Lets you have an infinite number of unique inboxes.

Team Chat & Messaging

Responsive web IRC client with theming support.

Email Infrastructure

Simple yet full-featured mail server as a set of Docker images.

Team Chat & Messaging

Offers SDKs and APIs to embed in‑app chat, voice, and video messaging.

Team Chat & Messaging

Distributed, secure messenger with audio and video chat capabilities.

Team Chat & Messaging

Team communication and collaboration software

Team Chat & Messaging

Custom Discord App

Email Infrastructure

POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to use any mail/calendar client with an Exchange server, even from the…

Team Chat & Messaging

IRC client

AI Chat & Voice Agents

Native chat application for all major LLM APIs

Team Chat & Messaging

Consolidate, control, and customise live social messaging streams

Forums & Community

Knowledge-based community software. You can use it to quickly build your Q&A community for product technical support, customer support…

Team Chat & Messaging

Telegram client with ghost mode and message history

Email Clients

Secure email app for Mac and iPhone with built-in PGP Support and AI assistance. ![Freeware][Freeware Icon]

Email Infrastructure

A platform for sending targeted emails and messages to users based on their behavior.

Email Infrastructure

SMTP server that sends and receives emails according to a simple configuration file, with an optional web interface that you can use to…

Video & Voice

Virtual video-calling space

Video & Voice

Universal communication platform which preserves the user's privacy and freedoms.

Team Chat & Messaging

Secure groups, files, and chat for everyone!

Team Chat & Messaging

Tiny IRC client.

Email Clients

IMAP email client

Team Chat & Messaging

Platform for secure collaboration across the entire software development lifecycle, can be integrated with Gitlab (alternative to Slack).