Mumble Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming. Lightweight high quality audio chat. Self-hosted and encrypted, so your communications are private. Guest • Feb 2018 • 2 agrees and 0 disagrees Disagree Agree Completely open source, very high quality Guest • Nov 2016 • 4 agrees and 0 disagrees Disagree Agree Communication more lightweight due to new opus codec when communicating Guest • Aug 2015 • 3 agrees and 0 disagrees Disagree Agree Mumble requires a server to run Guest • Nov 2015 • 3 agrees and 1 disagrees Disagree Agree Mumble requires a server. Skype is end-to-end Guest • Mar 2016 • 3 agrees and 23 disagrees Disagree Agree Free Open Source Mac Windows Linux iPhone BSD ... iPad Self-Hosted PortableApps.com Lightweight Ad-free Channel manager Chat Bot ... Dedicated Server Hosting Development API Encrypted chat Gaming-focused In-Game Overlay Portable Positional audio Push to talk Add a feature 389 Like
Riot.im Riot (formerly Vector) is an opensource interoperable app running on Web, iOS and Android. It is built around chat rooms, both public and private and provides messaging... It's arguably the premier Matrix client, which is free software that is decentralized. Riot.im gives you the option to host a Matrix server yourself and connect to it. It also offers end-to-end encryption and high quality video and audio chat. Not to mention the modern UI. Guest • Apr 2019 Disagree Agree Free, opensource and encrypted, with federation support and can be hosted on your servers. Murz • Aug 2017 • 2 agrees and 1 disagrees Disagree Agree It's like Skype but has open groups like Teamspeak and it has unlimited fileupload. Thanks to a server to server structure, everyone can text everyone. MasteLrugarius • Nov 2016 • 3 agrees and 0 disagrees Disagree Agree Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted Chrome Safari F-Droid Firefox Apps with End-to-End Encryption Decentralized Voice Call Custom widgets ... Federated Group chat Matrix.org protocol User Management Video calling Add-ons Clean design Community based Direct Messaging DRM Free Encrypted chat GitHub integration Group collaboration Integrated File Sharing MarkDown support Mobile friendly Privacy-friendly Self-hosted in intranet or private cloud File Sending Server Moderation Server side history Slack integration Team Collaboration Video calling Web Integaration Add a feature 250 Like
Mattermost Mattermost is an open source, self-hosted Slack alternative. As an alternative to proprietary SaaS messaging, Mattermost brings... Freemium $ $ $ Open Source Mac Windows Linux Android iPhone ... Android Tablet iPad Self-Hosted JavaScript Go (Programming Language) Cloudron Team Collaboration Group chat Data API Integrated File Sharing ... MarkDown support Multi Channel On-premises software Plugin API File Sending Slack integration Supports XMPP Add a feature 160 Like
Matrix.org Matrix defines a set of open APIs for decentralised communication, suitable for securely publishing, persisting and subscribing to data over a global open federation of... Feature-full modern free opensource instant messaging server with federation. Murz • Aug 2017 • 1 agrees and 0 disagrees Disagree Agree Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted WebRTC Python JavaScript Go (Programming Language) Java Perl Apps with End-to-End Encryption Chat Decentralized Chat Bot ... Distributed Encrypted chat GNU/linux-libre Group chat Java Random video chat Real time collaboration Server side history Team Collaboration Voice Call WebRTC Add a feature 128 Like
Rocket.Chat Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework. Good alternative to Slack because it is free and self-hosted. edlee • Dec 2016 Disagree Agree Free Open Source Mac Windows Linux Android iPhone ... Self-Hosted Cloudron Group chat Live Chat Video Conferencing Ad-free ... Channels Chat Bot Extensible by Plugins/Extensions Integrated File Sharing Location Mapping Share your screen Self-Serve Capability Slack integration Voice messages Add a feature 90 Like
Zulip Zulip is a group chat app. Its most distinctive characteristic is that messages are threaded by topic, helping you have long-running, organized conversations.... Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet BSD Self-Hosted Threaded Conversations Group collaboration Chat Bot Community based ... GitHub integration Group chat Integrated File Sharing Live topics MarkDown support Team Collaboration Add a feature 142 Like
HipChat HipChat is an instant messaging service designed for companies and teams. It has persistent chat rooms, one-to-one chat, searchable chat history, file sharing via drag... Discontinued https://alternativeto.net/software/slack/ is acquiring Hipchat and https://alternativeto.net/software/stride-by-atlassian/ from Atlassian. the services will be discontinued after February 15th, 2019. https://www.atlassian.com/partnerships/slack Freemium Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted Apple Watch Team Collaboration Chat Integrated File Sharing Share your screen Add a feature 73 Like
Let's Chat Self-hosted chat for small teams. Features and Stuff BYOS (bring your own server) Persistent messages Multiple rooms New message alerts /... Discontinued As stated at https://github.com/sdelements/lets-chat/issues/781 , the project is no longer developed since August 2017. Last version, 0.4.0, released in June 2015, can be still downloaded from GitHub together with the source code. Free Open Source Self-Hosted Cloudron Chat Team Collaboration Add a feature 36 Like
Dialog Messenger Dialog Messenger is a customized self-hosted platform usable across multi operation systems simultaneously. dialog provides SDK tools for client interface as well as for... Free Personal Mac Windows Linux Web Android ... iPhone Self-Hosted Software as a Service (SaaS) Encrypted chat Reactions Real time collaboration Security & Privacy ... Team work Text chat Add a feature 25 Like
ZeroChat An IRC-like internet chatroom hosted on ZeroNet, a distributed network. 0rc is a fully distributed website, and messages are shared through peers using the ZeroNet... Free Open Source Mac Windows Linux Web Self-Hosted ... Python JavaScript ZeroNet Decentralized Distributed Add a feature 10 Like
VideoMeeting VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is a pure web application based on WebRTC... Free Open Source Web Chrome OS Self-Hosted Video calling Web-Based Add a feature 4 Like
TribeScale TribeScale is a startup that aims to enhance teamwork in companies through the improvement of communication, coordination, and the pace on the basis of targets set. Discontinued Website and app unavailable. Free Mac Windows Web Android iPhone ... iPad Self-Hosted File sharing Goal setting Goal Tracking Group chat ... Group collaboration Real time collaboration Task Management Team Collaboration Team work Add a feature 24 Like
Tinode Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line... Free Open Source Web Android iPhone Self-Hosted Software as a Service (SaaS) Ad-free Group chat Chat Real time collaboration Add a feature 3 Like
NextCloud Talk Screensharing, online meetings & web conferencing without data leaks. Running over your own Nextcloud server. Free Personal Open Source Web Android iPhone iPad Self-Hosted Chat Apps with End-to-End Encryption Group chat Share your screen Add a feature 3 Like
TrueConf Free software on-premises video conferencing server with strong UC capabilities and native apps for all major platforms. Freemium Mac Windows Linux Web Android ... iPhone iPad Self-Hosted Apple Watch Chat Share your screen Video calling Video Conferencing Add a feature 4 Like
