Open source, on-premises, Slack alternative

#5 Product of the DayToday
There are no images or videos added to the gallery.
Add to gallery



You need to become a Contributor to join the discussion - Find out how.
christian stewart@stewart_cc · Freelance Strategist
Slack, HipChat, ChatGrape, Flowdock, Unison, Glip, Cotap, Lua, Hall, Fleep, Kato, Twoodo, Convo, Stackfield, Svyft, campfire, Pie,, 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
Javin Ladish@javinladish · Designer
@stewart_cc And not to mention, Slack.
Salim Virani@saintsal · Founder-Centric
@stewart_cc Are any of those open source? Might be a clear differentiation in such a competitive space.
christian stewart@stewart_cc · Freelance Strategist
@saintsal Excellent point. And no, not that I know of. Slack is catching on outside of non-technical/developer teams though, and even within the tech field- how valuable is open-source vs. a pretty-polished product like Slack?
Salim Virani@saintsal · Founder-Centric
@stewart_cc In developing economies and some governments and enterprises, open source makes a big difference. (And modern open source doesn't necessarily mean bad UX or lack of polish. Take Ghost and Fedora for example.)
Gabriel Engel@gabriel_engel · CEO, Konecty and Rocket.Chat
Hi @saintsal @stewart_cc have you checked out ? It is a MIT Licence, 100% JavaScript, Open-Source, self-hosted alternative. Let me know what you think of it?
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.
Ian Tien
@iantien · CEO, Mattermost / SpinPunch
thanks @katmanalac! Mattermost team here, We wrote Mattermost to solve our own needs, in running an indie video game company (aka "SpinPunch"). We open-sourced it because friends kept asking for the code. We're so glad to share this with you, and look forward to your comments, questions, and feature requests,
Tyler Howarth@tylr · Designer at Airbnb
Pretty awesome rip off good work
Julie Delanoy@syswarren · Design at Product Hunt
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?
Ian Tien
@iantien · CEO, Mattermost / SpinPunch
Hi @syswarren, we tried to carefully study different UI in designing Mattermost, including HipChat and Facebook in addition to Slack. We do consider ourselves an "open source, on-premises Slack-alternative" because we believe there's a community that wants such a product, and that they're underserved right now, That said, I think if you install the application and run it I hope you'll see there's more to our design than the two or three screenshots that were in our first blog post. For example, here's an early spec of the Mattermost "App Center", which is in progress right now: ^ updated
Mike Rundle@flyosity · Working on Treeo for iPhone!
@iantien @syswarren Slack was not just carefully studied, it was ripped off. I can't believe that Product Hunt would feature such a blatant clone. As a designer and a product maker, this makes me sick. I've had my work ripped off many, many times over the years, and I bet the Metalab and Slack team's right now are just fuming if not talking to their lawyers about how to sue Mattermost for violating U.S. trade dress laws.
P A S Q U A L E@pasql · Partner at Thinko
@flyosity Yeah, this is a blatant rip off. I'd be ashamed to be involved in a project like this.
Javin Ladish@javinladish · Designer
I second both @flyosity and @pasql 's statements. With the naked eye your design is a total copy of Slack, lest a few color changes.
Rahul Singh@imrsco · #GrowthHacker #Entrepreneur
Sounds Promising..
Evan Varsamis@evanvar · Founder & CEO The Gadget Flow
@imrsdotco It does but the competition is HUGE