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Instant Messaging & Chat Software for Linux - Page 2

Last updated: February 2026

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56 software options

5pm logo

Project management on time

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5pm is a project management tool with an easy interface and a balanced set of features, like Social Toolbar that allows team members to chat in real time.

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Wire logo

The most secure collaboration platform.

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Wire™ protects critical communications for the world’s most security-demanding organizations with the highest security standards globally.

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Jostle logo

Helping employees succeed. Anytime, anywhere, with ease.

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Jostle's the single place where everyone in your organization connects, communicates, and celebrates together. Anytime, anywhere, with ease. The result? Your culture comes to life, and each and every person is set up for success.

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B2Chat logo
Category Leaders

B2Chat Multiagent & MultiChannel

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Turn online conversations into sells with B2Chat. A web app software that brings into one inbox and simultaneously, all of your customer service channels: social media, WhatsApp, Chatbots.

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Spike logo

AI-powered email, redefined

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AI-powered email app that keeps communication fast, organized, and secure. Manage all email accounts, chats, calls, and calendars in one workspace—available on every device.

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Gmelius logo

Gmelius transforms Gmail into a team workspace

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Gmelius is a cloud-based collaboration tool that brings teams together within the Gmail platform. By transforming email inboxes into a workspace for team collaboration, Gmelius allows teams to manage projects and clients without leaving their inbox.

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Conceptboard logo
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Secure whiteboard for tasks, ideas & collaboration

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Conceptboard is a GDPR-compliant online whiteboard for visual collaboration and task management. Hosted in Germany, it enables secure teamwork in real time or asynchronously — from brainstorming to project delivery.

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todo.vu logo

Tasks, time tracking & billing for freelancers & SMEs.

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todo.vu is a cloud-based productivity suite which enables freelancers & small teams to manage tasks, time & client communication effectively & efficiently

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Fleep logo

A flexible messenger for team communication and file sharing

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A messenger app that integrates with email. It includes file sharing, tasks, pin boards and more and works across multiple organisations

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Circuit logo

Team communication software for facilitating collaboration

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Circuit is a virtual collaboration software designed to help small and medium-sized businesses organize projects, share documents, and communicate with team members. It offers face-to-face video meetings, screen sharing, mobile applications, and content labeling, plus an API for app integrations.

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Ryver logo

Group Messaging + Task Management + Workflow Automation

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Ryver helps organize all your team collaboration in one app. It includes Group Messaging (Chat + Topic-threaded Chat + File Sharing), Task Management, and Workflow Automation. Ryver is accessible from any device and affordable for teams of all sizes.

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Lark logo

Collaboration tool for SMEs and education institutes

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Lark is a collaboration software that helps businesses establish communication through instant messaging and audio or video calling. It lets users create chat threads and view interaction history to streamline communication and provide context on specific topics.

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Troop Messenger logo

Real-time messenger application for businesses of all sizes

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Troop Messenger is a real-time messenger application which helps small to large businesses manage team collaboration and communication. It facilitates a secure instant messaging platform, allowing users to discuss projects, share ideas and connect with employees across their entire organization.

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Noodle logo

Your All-in-One Collaboration Workspace.

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Noodle’s built-in Instant Messenger application allows employees to chat with each other.

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Team on the Run logo

The All-in-one Business Process Communication solution

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Team on the Run allows message and file transfer that is as fast and easy as other popular messengers but offers business-worthy security and reliability on top

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Rock logo

Bring order to chaos, messaging + tasks combined at last.

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Messaging + tasks combined at last. Rock allows you to work together with anyone with messages, tasks, notes, file storage, and meetings in one place. All-in-one communication built for remote and hybrid teams. Rock allows you to collaborate with anyone, anywhere.

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Threema Work logo

Secure and privacy-compliant business messenger

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Threema Work is a suite of secure communication tools with the mobile messaging app at the center. Tailored to the professional use in companies, organizations, and governments with the highest security requirements.

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Orion Voice Platform logo

AI-enabled collaboration & communication management solution

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Orion helps businesses streamline processes related to voice communication, employee onboarding, task mapping, and more. The platform comes with automated notifications, which facilitate communication during emergencies and allow teams to send help alerts.

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ValueOps logo

Chat & inbox software for teams

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Flowdock is a collaboration app that integrates chat and team inbox.

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Pronto logo

Communication management solution

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Pronto is a communication management solution, which helps educational institutions & businesses collaborate and communicate via real-time text or video chats. It lets users modify, delete, or store various documents such as spreadsheets, images, videos & slideshows in a centralized repository.

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Bluepulse logo

Social feedback software

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Blue is a software that fully automates your surveys, 360 degree feedback reviews, course evaluations and other key institutional feedback initiatives.

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Wavity logo

Frictionless business on a budget

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Wavity enables organizations to build easy-to-use digital workflows quickly and cost effectively.

We offer solutions to support many digital workflows - IT, Sales and Marketing, HR, Work and Project Management and other workflows that are unique to your organization and your teams.

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TeamWox logo

Online groupware and collaboration software

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TeamWox is a web-based collaboration software with HRM, Task and Document Management, CRM, Service Desk and IP PBX suits in 30 languages.

Using this groupware, it is possible to build up an effective teamwork and speed up management decision-making based on timely and reliable information. Moreover, the TeamWox system allows to increase the efficiency of the working team and its productivity, as well as reduce expenses of the entire business.

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AnywhereWorks logo

Team collaboration app

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Communicate with teams whether at home or in the office with AnywhereWorks. Create a virtual office environment using availability indicators, messaging, and video conferencing tools.

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Switchboard logo

Voice chat software to establish team communication

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SwitchBoard is a voice chat software that helps businesses establish two-way communication between individuals and teams. It enables users to send and receive voice notes along with the text transcripts for all messages.

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