Skype An instant messaging app that provides online text message and video chat services. Freemium Mac Windows Linux Web Android ... iPhone Blackberry Chrome OS Windows S Android Tablet BSD Windows Phone iPad Apple Watch Android Wear PortableApps.com Share your screen Video calling Exchange Integration IFTTT integration ... Microsoft Office integration Video calling Voice Call Add a feature 2357 Like
Slack Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams. Freemium Mac OS X Windows Linux Web Android ... iPhone BSD Apple Watch Electron / Atom Shell Group chat Group collaboration Team Collaboration Extensible by Plugins/Extensions ... Multi Channel App integration Channel manager IFTTT integration Support for @mentions Onboarding Out Of The Box Reactions Real time collaboration Share files Team work Voice Call Add a feature 572 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... Free Open Source Linux Web Android iPhone iPad ... Self-Hosted Chrome Safari F-Droid Firefox Decentralized End-to-end encryption Group chat Matrix.org protocol ... Built-in File transfer Encrypted chat GitHub integration Group collaboration Self Hosted Feature Server Moderation Server side history Slack integration Team Collaboration Video calling Voice Call Add a feature 151 Like
Mattermost Mattermost is an open source, self-hosted Slack alternative. As an alternative to proprietary SaaS messaging, Mattermost brings... Free Open Source Mac OS X Windows Linux Android iPhone ... Android Tablet iPad Self-Hosted JavaScript Go (Programming Language) Cloudron Team Collaboration Data API Group chat Integrated File Sharing ... MarkDown support On-premises software Plugin API Slack integration Add a feature 113 Like
Matrix.org Matrix is an open standard for decentralized persistent communication over IP. It can be used for decentralised group chat, WebRTC signaling, IoT-data transfer, ... Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted WebRTC Python JavaScript Go (Programming Language) Java Perl End-to-end encryption Decentralized Chat Bot Distributed ... Encrypted chat GNU/linux-libre Group chat Real time collaboration Server side history Team Collaboration WebRTC Add a feature 73 Like
Rocket.Chat Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework. Free Open Source Mac Windows Linux Android iPhone ... Self-Hosted Cloudron Ad-free Chat Bot Extensible by Plugins/Extensions Group chat ... Integrated File Sharing Location Mapping Share your screen Voice messages Add a feature 68 Like
Glip Glip is instant messaging for teams and businesses to communicate and get work done at the same time. In Glip you work where your conversations are, so you always know... Freemium Mac OS X Windows Web Android iPhone ... Android Tablet iPad Social feed Bitbucket Integration Box.com integration Built-in File Manager ... Calendar view CRM Dropbox integration GitHub integration Google Drive integration Group chat Group collaboration Mailchimp integration Meeting notes Onedrive integration Real time collaboration Recurring tasks Share your screen Shared calendars Sync Calendars Team Collaboration Team work Trello integration Zapier integration Zendesk integration Add a feature 153 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... Freemium Mac OS X Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted Apple Watch Team Collaboration Integrated File Sharing Share your screen Add a feature 72 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 OS X Windows Linux Web Android ... iPhone BSD Self-Hosted Threaded Conversations Group collaboration Chat Bot Community based ... GitHub integration Group chat Integrated File Sharing MarkDown support Team Collaboration Add a feature 109 Like
Gitter Gitter is a chat and collaboration tool for developers and users. It's a place for developers to talk. KEY FEATURES - Unlimited public chat rooms for free -... Free Open Source Mac OS X Windows Linux Web Android ... iPhone Real time collaboration Add a feature 26 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 /... Free Open Source Self-Hosted Cloudron Team Collaboration Add a feature 36 Like
eXo Platform eXo Platform is a Digital Collaboration Platform for enterprises. It helps people work together in a collaborative workplace. Free Open Source Mac OS X Windows Linux Web Android ... iPhone iPad Self-Hosted App integration Group collaboration Real time collaboration Shared calendars ... Team Collaboration Team messaging Team work Add a feature 60 Like
Hack Chat hack.chat is a minimal, distraction-free chat application. Channels are created and joined by going to https://hack.chat/?your-channel . There are no channel lists, so a... Free Open Source Web Android Self-Hosted Distraction-free UI Add a feature 19 Like
Flock Flock is the fastest growing team messenger and loved by over 25,000 companies globally. It also comes with its powerful platform, FlockOS. Freemium Mac OS X Windows Web Android iPhone ... Chrome OS Android Tablet Windows Phone iPad Google Calendar integration Asana integration Bitbucket Integration Channel manager ... Encrypted chat GitHub integration Google Analytics Integration Google Drive integration Group chat Group collaboration IFTTT integration Integrated File Sharing Jira integration Mailchimp integration Share your screen Team Collaboration Team messaging Trello integration Twitter integration Uber integration Video calling Visual Studio integration Voice Call Zapier integration Add a feature 29 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 OS X Windows Linux Web Android ... iPhone Self-Hosted Encrypted chat Privacy protection Reactions Real time collaboration ... Team work Text chat Add a feature 23 Like
