Open source, on-premises, Slack alternative

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Ian Tien
@iantien · CEO, Mattermost / SpinPunch
Cross posting from Hacker News: We are looking for feedback on the design of a new Mattermost "App Center" that we're building to eventually host 3rd party apps: https://docs.google.com/document... It's a pretty raw document, and before it gets too polished, would love feedback from the community: Would you find this interface interesting for building 3rd … See more
Would you recommend Mattermost to a friend?


christian stewart
@stewart_cc · Freelance Strategist
Slack, HipChat, ChatGrape, Flowdock, Unison, Glip, Cotap, Lua, Hall, Fleep, Kato, Twoodo, Convo, Stackfield, Svyft, campfire, Pie, Imbox.me, Bitrix24, Huddle, Teamnote, IBM Verse, Confide, Moxtra, Teamwork, Circuit by Unify, Central Desktop, Wrike, Yammer, Jive, Honey, Facebook @ Work, TigerText, Skype, Incentive Corp, and mattermost. Good luck gents
Kat Manalac
@katmanalac · Partner, Y Combinator
Mattermost is an open-source Slack alternative for team communication. It's built by YC alums SpinPunch. You can host Mattermost on your own servers, and build whatever new functionality you want atop the code base.
Julie Delanoy
@syswarren · Design with @wearetm 😻
I like the idea of an Open Source Slack but I'm not sure I understand. Mattermost has the same UI and UX (also the same font, from what I can see on the screenshots) as Slack. It lets you build your own features and you can host it wherever you want but it's not made by Slack, right ? Did Mattermost work on this project with the Slack team?
Tyler Howarth
@tylr · Designer at Airbnb
Pretty awesome rip off good work
Rahul Singh
@imrsdotco · #GrowthHacker #Entrepreneur
Sounds Promising..