Best Instant Messaging Software in 2026

Slack

Slack is a team collaboration platform built around channels, messages, and connected apps.

SimpleX Chat

SimpleX Chat is a free messaging app built on the SimpleX platform, available for Android, iOS, Linux, macOS, and Windows.

Chanty

Chanty is a team chat and collaboration tool with channels, guest access and unlimited message history.

Pumble

Pumble is a team communication and collaboration app for businesses, available on the web, Windows, macOS, Linux, iOS, and Android.

Wire

Wire provides organizations with end-to-end encrypted messaging, calls, conferencing, and file sharing.

Discord

Discord is a communications platform for voice, video, and text, with communities organized into servers and channels.

JANDI

JANDI is a messenger-based collaboration tool for workplace communication and teamwork.

Beeper

Session

Session is a decentralized, end-to-end encrypted private messaging app for Android, iOS, Linux, macOS, and Windows.

Troop Messenger

Troop Messenger is a team messaging platform from Troop Messenger, headquartered in Hyderabad, Telangana, India.

Twist

Twist is a team messaging service organized around channels, with guest access and integrations for work tools.

Threema

Threema is a paid messaging app for private and business use, with text and voice messages, voice and video calls, group calls, media sharing, file…

Telegram

Telegram is a cloud-based messaging app for mobile and desktop, focused on security and speed.

Signal

Signal is a private messaging app for sending messages and making internet calls.

imo

imo is a communication app for internet calls and messaging, available on Android, iOS, macOS, web, and Windows.

Viber

Viber is a free calling and messaging app for Android, iOS, Linux, macOS, and Windows.

Brosix

Brosix is a paid team communication service available on Windows, macOS, Linux, iOS, Android, and the web.

Flock

Flock is a team collaboration service organized around channels, guest access, and messaging.

Briar

Briar is a free messaging app designed for people such as activists and journalists who need communication without a central server.

Monal

Monal is a free XMPP instant messaging client for iOS and macOS.

Element

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