Output Messenger is described as 'Private and Secure Instant Messenger for Office designed specifically for keeping remote employees and multiple offices in sync' and is a Group Chat app in the social & communications category. There are more than 50 alternatives to Output Messenger for a variety of platforms, including Windows, Web-based, Android, Mac and iPhone apps. The best Output Messenger alternative is Slack, which is free. Other great apps like Output Messenger are Mattermost, Rocket.Chat, Trillian and Empathy.
Offers unified communication for teams with advanced real-time messaging, contextual features, versatile chat tools, and organized conversations in dedicated channels with integrated file sharing on Mac, Windows, Linux, and mobile platforms for enhanced productivity.
Mattermost is a secure, open source platform for communication, collaboration, and workflow orchestration across tools and teams.
Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation should be easily shared between all of your devices, not trapped as text messages on your phone.
Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell it about your accounts on all those services and do all your chatting within one application.
Ripcord is a desktop chat client for group-centric services like Slack and Discord. It provides a traditional compact desktop interface designed for power users. It's not built on top of web browser technology: it responds quickly to input, sips gently from computer...
A comprehensive collaboration platform within Office 365, providing centralized chat, file sharing, and HD video meetings. Accessible on multiple platforms, it offers enterprise-grade security and compliance, customizable notifications, and private to group chat sessions.
Replace a multitude of services and apps with a single ecosystem for your business to work in. Explore the tools of Bitrix24.
Gitter is a chat and collaboration tool for developers and users. It's a place for developers to talk.
BeeBEEP is a secure network chat. You can talk and send files with all your friends inside a local area network such of an office, home or internet cafe without a server.
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 secret channel name can be used for private discussions.
Source code : https://github.com/hack-chat/main.
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