Best Team Chat Software for Windows

Professional online meetings built for business. Easy to set up and join · Powerful collaboration tools. Made by Microsoft. With one click, anyone can join your online meeting, from any device. You can choose to meet right away, or schedule from Outlook for later. The meeting URL is personalized just for you. Record meetings, share your screen, and annotate PowerPoint for real-time collaboration with up to 250 people. Use whiteboard, polls, Q&A, and built-in IM during your business meetings to make them more productive. Expertly manage your online meetings with advanced calling options, like muting one or all participants and transferring presenter control. Trust in business-quality meetings with encrypted video and audio streams, and 24/7 phone support when needed. Enjoy industry-leading HD video for online meetings that feel top quality and trustworthy. Focus more on the people in your call, with added features like automatic cropping and head tracking.

Your team’s communication hub. Team messaging, video+audio calling, productivity apps and more. Flock makes communication and collaboration effortless. Get all the features you need in one easy-to-use tool. Work smarter with Flock's all-in-one messaging, video conferencing, and productivity tool. Stay connected with Flock's powerful built-in video conference feature. Up to 20 attendees can meet in real-time. You can even screen share with just a click. Powerful search helps you find anything shared in Flock, whether it’s a message, file, or link. Use our powerful suite of business collaboration tools - Shared To-Dos, Polls, Note Sharing, Reminders, and more - to optimize project management. Flock offers over 50 integrations with tools like Asana, Twitter, Googe Drive, and Todoist. Add your apps in Flock with one click and you’ll never need to switch tools to get work done.

Where teams connect to get work done. Unlimited tools for you and your team to work together, wherever you are. Connect everyone in your organization. Empower and transform your whole business, with familiar features like groups, chat and video calls. Over 30,000 global organizations large and small connect their teams with Workplace. Now it's your turn. Our instant messaging feature lets you chat 1-to-1 or in groups, reaching anyone in your organization with text, pictures, voice and video. When someone posts in a different language, Workplace offers to translate it there and then. Helping you become a truly global business. Groups are spaces for sharing updates, files, feedback and more. They're like email threads, but better organized and easier to follow. Org Chart lets you quickly look up coworkers and team info, so you spend less time wondering who to ask for help and more time getting things done.

Wire protects critical communications for the world’s most security-demanding organizations. Wire's highest security standards enable users to communicate securely, thanks to the most advanced encryption and its Zero-Trust architecture, while facilitating user administrators to manage and control their organization's information, guaranteeing the sovereignty of their data. Created by the founders of Skype, Wire provides end-to-end encryption for messages, audio and video conferencing, file exchange, external collaboration, and beyond. Used by most of the world's G7 governments and other security-critical organizations globally, Wire is pushing the limits of secure communication, pioneering work for standardized encryption with Messaging Layer Security. To learn more, visit wire.com

8x8 Work is a unified communications platform designed to connect teams and customers globally through voice, video, messaging, and AI-powered tools. It enhances productivity with features like enterprise-grade PBX, SMS, fax, and intelligent call routing, ensuring reliable communication from anywhere. The platform also supports AI-driven meeting transcriptions, summaries, and noise suppression to streamline collaboration and reduce manual work. With video conferencing, team chat, and file sharing, organizations can foster stronger collaboration and maintain workflow alignment across remote and hybrid teams. 8x8 integrates seamlessly with tools like Microsoft Teams, Google Workspace, Salesforce, and ServiceNow to provide a unified workflow experience. Built with enterprise-level security and compliance certifications such as HIPAA, ISO 27001, GDPR, and SOC 2, 8x8 ensures both scalability and trust for modern businesses.

Voice, real-time chat, web conference, file and image sharing, drag-and-drop call operations, and task management all come together in one easy-to-use workspace. Get a communications experience that’s consistent across all your devices, from desktop to mobile. ZAC's collaboration tools like voice, video, file and image sharing, and messaging allow employees to increase productivity and make collaboration simple. MX Mobile keeps your workflow moving even when you’re on the go. All ZAC's features are available at your fingertips, on any iOS or Android device. ZAC is available as a desktop application or via WebZAC's browser-based solution. It’s available with no downloads, on any OS, and supported by multiple browsers.