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Mattermost

Open source, on-premises, Slack alternative

25followers

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Unclaimed

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Alternative Products

Team communication and collaboration platform

Opensource Builders

Find open-source alternatives to commercial apps

The most secure collaboration platform

Time to replace Slack

Teamwork That Works From Anywhere

Own your conversations.

Node.js Messenger

A small alternative to Slack

The open source alternative to Slack,Trello,Drive and Teams

Turn user conversations into development insights

View all alternatives →

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3

Launches

2

Badges

October 15th, 2015

Mattermost 1.0

June 24th, 2015

Mattermost