Mattermost Alternatives

A messaging app for teams who see through the Earth!

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

Open Source

Assembly is an employee recognition software powered by AI that boosts engagement and productivity. Empower teams with peer-to-peer recognition, rewards, and performance tracking. Simplify HR processes and foster a positive workplace culture.

Try for free freemium

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Open Source

Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.

Open Source free

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.

Open Source

Chat for distributed teams. Zulip combines the immediacy of real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.

Open Source

Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.

Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.

Matrix is an open standard for decentralized persistent communication over IP.

Open Source

A faster way for your team to communicate

Fast, simple & secure messaging. Privacy that fits in your pocket.

Open Source

Live life unlimited. Free video meetings and team messaging in one app that works the way you do.

Cisco Jabber lets you access presence, instant messaging (IM), voice, video, voice messaging, desktop sharing, and conferencing.