Slack is a platform for team communication: everything in one place, instantly searchable, available wherever you go. Offering instant messaging, document sharing and knowledge search for modern teams.

Discord is an all-in-one voice and text chat for gamers.

Keep your team focused and working together with Chatwork's team chat, tasks, video chats, and more in one place.

Microsoft Teams is the hub for teamwork in Office 365 that integrates all the people, content, and tools your team needs to be more engaged and effective.

Rocket.Chat is an Open Source team communication platform: features from team chat to helpdesk live-chat, video conferencing and many more.

Mattermost offers modern team communication, behind your firewall. Share messages and files across phones and PCs, with archiving and instant search.

Real-time messaging with integrated task management, video conferencing, shared calendars and more.

Google Hangouts Chat is an intelligent communication app for teams that takes direct messaging in Google Hangouts and evolves it to reflect the way modern teams talk business.

Twist keeps your conversations on-topic and in one place. For teams who want to make work calmer, more organized, and more productive.

Ryver is a new, more powerful way to communicate with your team(s). Ryver combines the freedom and immediacy of chat with the organization and power of posts and comments. Also included is file organization within the context of the team, project or discussion in which they are shared.