Zulip - Group Chat

  •        571

Zulip is a powerful, open source group chat application. It supports both private messaging and group chats via conversation streams. Zulip also supports fast search, drag-and-drop file uploads, image previews, group private messages, audible notifications, missed-message emails, desktop apps, and much more.

https://zulip.org
https://github.com/zulip/zulip

Tags
Implementation
License
Platform

   




Related Projects

Gitter - Community for Software Developers

  •    Javascript

Gitter is designed to make community messaging, collaboration and discovery as smooth and simple as possible. You can easily create, organise and grow your communities, inviting others to join just in one click. Gitter is an instant messaging and chat room system for developers and users of GitHub repositories. Gitter is similar to IRC and Slack. Unlike IRC, and like Slack, it automatically logs all messages in the cloud.

Lets-Chat - Self-hosted chat for small teams

  •    Javascript

Let's Chat is a persistent messaging application that runs on Node.js and MongoDB. It's designed to be easily deployable and fits well with small, intimate teams. It supports XMPP Multi-user chat (MUC), Multiple rooms, File uploads and lot more.

RocketChat - The ultimate open source web chat platform

  •    Coffeescript

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework. It is a great solution for communities and companies wanting to privately host their own chat service or for developers looking forward to build and evolve their own chat platforms. Its features include File sharing, Video conferencing, Screen sharing, Live chat, Link preview and lot more.

braid - Braid is a team-chat app with a novel UI that leads to better conversations.

  •    Clojure

Braid is an experimental team chat application with a novel UI: instead of chatrooms, it's based on many short conversations. You can think of Braid as an email/mailing-list/web-forum/chatroom hybrid, but without the constant interruptions and FOMO of Slack. It's particularly good for remote-first companies, developer teams and online communities. Braid is also open-source, so you can hack on it and host your own version. You can read more about Braid and then give Braid a try.

Riot - Messaging and Colloboration made easy

  •    Javascript

Riot is built on top of Matrix. Matrix is an open network for secure, decentralized communication delivering a community of users,bridged networks, integrated bots and applications plus full end-to-end encryption. Riot allows teams to communicate across a wide range of collaboration apps. If some team members use Riot while others use IRC, Slack or Gitter, Riot will allow these team members to seamlessly work together. Riot offers the richest network of communication bridges.


Matrix - Decentralized group communication

  •    Python

Matrix is an open standard for decentralised communication, providing simple HTTP APIs and open source reference implementations for securely distributing and persisting JSON over an open federation of servers. It can be used for Decentralised Group Chat, WebRTC signalling, Internet of Things, VOIP etc.

Spark - Cross-platform real-time collaboration client optimized for business and organizations.

  •    Java

Spark is an Open Source, cross-platform IM client optimized for businesses and organizations. It features built-in support for group chat, telephony integration, and strong security. It also offers a great end-user experience with features like in-line spell checking, group chat room bookmarks, and tabbed conversations. Combined with the Openfire server, Spark is the easiest and best alternative to using un-secure public IM networks.

Slackin - Public Slack organizations made easy

  •    Javascript

Slackin is a little server that enables public access to Slack server. It is like Freenode but on Slack.

Signal-Android - A private messenger for Android, alternative to WhatsApp

  •    C

Signal is a messaging app for simple private communication with friends. Signal uses your phone's data connection (WiFi/3G/4G) to communicate securely, optionally supports plain SMS/MMS to function as a unified messenger, and can also encrypt the stored messages on your phone.

Off-the-Record Messaging Provides Private Conversations Over IM

  •    C

Off-the-Record (OTR) Messaging allows you to have private conversations over instant messaging by providing encryption, authentication, deniability, and perfect forward secrecy. If you lose control of your private keys, no previous conversation is compromised.

Jitsi - Video Calls and Chat

  •    Java

Jitsi provides Secure Video calls, Conferencing, Chat, Desktop sharing, Instant Messaging, File transfer support for your favorite OS and IM network. Jitsi lets you connect to Facebook, GoogleTalk, XMPP, Windows Live, Yahoo!, AIM, and ICQ so that you can chat to all your friends in the simplest possible way. It supports IPv6, Secure calls with zRTP, Call history, Call hold etc.

Cryptocat - Encrypted Chat

  •    Javascript

Cryptocat is free software that aims to provide an open, accessible Instant Messaging environment that encrypts your conversations and works right in your browser. It uses the OTR protocol over XMPP for encrypted two-party chat and the (upcoming) mpOTR protocol for encrypted multi-party chat.

Empathy - Instant Messaging for GNOME

  •    C

Empathy is a messaging program which supports text, voice, and video chat and file transfers. It supports private and group chat and logs the complete conversation. It currently lacks privacy and encryption support.

Mattermost - Self-hosted Team Communication Service

  •    Go

Mattermost is self-hosted team communication service bringing messaging and file sharing into one place, accessible across PCs and phones, with archiving and search.

ChatSecure - Encrypted chat client for iOS and Android

  •    Objecive-C

ChatSecure is a instant messaging client for iOS and Android that integrates encrypted OTR ("Off the Record") messaging support from the libotr library and the XMPPFramework to handle Jabber/GTalk (XMPP).

Chatwoot - A simple and elegant live chat software, An opensource alternative to Intercom, Zendesk, Drift, Crisp etc.

  •    Ruby

Chatwoot is a customer support tool for instant messaging channels which can help businesses to provide exceptional customer support. It is an opensource alternative to Intercom, Zendesk, Drift, Crisp etc.

Adium - Instant Messaging for Mac

  •    Objective-C

Adium is a instant messaging application for Mac OS X that can connect to AIM, XMPP (Jabber), ICQ, IRC, Bonjour and more. It supports Encryption, File transfer, Tabbed chat windows and lot more.

Conversation - Instant Messaging for Android

  •    Java

Conversations is the instant messaging client for the Android. It supports XMPP, Jabber client, Encryption. It supports to send and receive images as well as other kind of files, Pictures / Avatars for your Contacts, Syncs with desktop client, Share your location, Send voice messages, Multiple accounts / unified inbox and lot more.

Tox - The future of online communications.

  •    C

With the rise of government surveillance programs, Tox, a FOSS initiative, aims to be an easy to use, all-in-one communication platform that ensures full privacy and secure message delivery. Tox must use UDP simply because hole punching with TCP is not as reliable. However, Tox does use TCP relays as a fallback if it encounters a firewall that prevents UDP hole punching.

Signal - Secure Messaging

  •    Java

Signal sends high-quality group, text, voice, video, document, and picture messages anywhere in the world. Signal messages and calls are always end-to-end encrypted and painstakingly engineered to keep your communication safe.