Mattermost
Mattermost is an open source alternative to Slack.
- Open Source
- Official Pricing
Mattermost Alternatives
The best Mattermost alternatives based on verified products, community votes, reviews and other factors.
Latest update:
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A messaging app for teams who see through the Earth!
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Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
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Work smarter, not harder. Save 1 day/week with free customizable workflows. Get access to 40+ workflow templates such as Employee Recognition & Engagement. Simplify your day-to-day workflows, increase team productivity & add simplicity to your work.
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Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
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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.
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Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
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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.
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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.
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Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
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A faster way for your team to communicate
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Matrix is an open standard for decentralized persistent communication over IP.
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Fast, simple & secure messaging. Privacy that fits in your pocket.
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Live life unlimited. Free video meetings and team messaging in one app that works the way you do.
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Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.