Team communication tools are the connective tissue of modern work. They range from real-time chat platforms to async-first tools designed to reduce interruptions, and most organizations end up using some combination of both. The right choice depends heavily on how your team is distributed, what hours they work, and how much deep focus time they need.

The dominant model for the past decade has been channel-based messaging, popularized by Slack and adopted by competitors. But there is growing recognition that always-on chat can fragment attention and create pressure to respond immediately. This has driven interest in async communication tools, threaded discussions, and platforms that let teams communicate without expecting instant replies.

When evaluating communication tools, think about signal-to-noise ratio. The best tools make important information easy to find and act on, while keeping casual conversation accessible but not distracting. Search quality, threading, and integration with your other tools matter more than most feature checklists suggest. Also consider how the tool handles external communication with clients, contractors, or partners, since many teams need this alongside internal messaging.

All team communication tools

1
Slack Free tier

Team messaging platform with channels, threads, and integrations for workplace communication.

Free for small teams, 90-day history · Paid from $7.25/user/mo Teams that need organized, searchable communication
Channels Threads Integrations File Sharing
2
Microsoft Teams Free tier

All-in-one communication platform with chat, video meetings, and Office 365 integration.

Free basic chat and video meetings · Paid from $4/user/mo Organizations already using Microsoft 365
Video Meetings Office 365 Integration Channels File Sharing
3
Discord Free

Voice, video, and text communication platform originally built for gaming, now used by communities and teams.

Free Communities, startups, and teams that want free voice + text
Voice Channels Screen Sharing Bots Community Servers
4
Mattermost Free Open Source

Open-source, self-hosted team messaging platform for organizations that need data sovereignty.

Free (self-hosted) Teams that need self-hosted, privacy-first messaging
Self-Hosted Channels Playbooks Compliance
5
Rocket.Chat Free Open Source

Open-source communication platform with team chat, video, and omnichannel customer engagement.

Free (self-hosted) Teams that want self-hosted chat with customer-facing features
Self-Hosted Omnichannel Federation Video Calls
6
Element Free Open Source

Decentralized, end-to-end encrypted messaging built on the Matrix protocol.

Free Privacy-focused teams and cross-organization communication
End-to-End Encryption Matrix Protocol Bridges Self-Hosted
7

Team messaging built into Google Workspace with Spaces, threads, and deep Google app integration.

Paid from $6/user/mo Teams already using Google Workspace
Spaces Threads Google Workspace Bots
8
Lark Free tier

Integrated workspace combining messaging, video, docs, and project management from ByteDance.

Free for up to 50 users · Free Teams wanting an all-in-one collaboration suite
Messenger Video Docs Calendar
9
Twist Free tier

Async communication tool from Doist that organizes conversations into threads, not a firehose.

Free for 1 month history · Paid from $6/user/mo Remote teams wanting async-first communication
Threads Async-First Channels Integrations
10
Pumble Free

Free team messaging app with unlimited message history, channels, and 1-on-1 video calls.

Free Teams wanting a free Slack alternative
Unlimited History Channels Video Calls Threads
11

Slack feature for connecting channels between different organizations securely.

Paid from $7.25/user/mo Organizations needing secure inter-company messaging
Cross-Org Channels Security DMs Workflows
12
Chanty Free tier

Simple team messaging with tasks, video calls, and unlimited message history on the free plan.

Free for up to 5 members · Free Small teams wanting simple, affordable team chat
Unlimited History Tasks Video Calls Threads
13
Flock Free tier

Team messaging with built-in to-dos, polls, notes, and file sharing.

Free for up to 20 users · Free Teams wanting messaging with built-in productivity tools
To-Dos Polls Notes Video Calls
14
Zulip Free Open Source

Open-source team chat with a unique topic-based threading model for organized conversations.

Free Open-source communities and teams wanting threaded messaging
Topic Threading Open Source Self-Hosted Markdown

Popular team communication comparisons

Find alternatives

Frequently asked questions

Is Slack-style chat good or bad for productivity?
It depends on how you use it. Real-time chat is excellent for quick coordination, informal communication, and building team culture. It becomes problematic when it is the primary channel for decisions, documentation, or anything that requires thoughtful responses. The most productive teams use chat for ephemeral communication and move important discussions to longer-form tools.
What does async-first communication actually mean?
Async-first means defaulting to communication methods that do not require an immediate response: recorded video updates, written posts, threaded discussions with reasonable response windows. It does not mean eliminating real-time communication entirely, but rather being intentional about when synchronous interaction is truly necessary.
How many communication tools should a team use?
As few as possible while covering your actual needs. Most teams need a real-time channel for quick questions, a place for longer-form updates or discussions, and a way to do video calls. If one tool covers two of those well, that is usually better than having three separate apps. Every additional tool increases the chance that important information gets lost.

Explore more