Slack Alternatives

    Slack is described as 'Real-time messaging, archiving and search for modern teams to stay focused and productive' and is one of the leading apps in the Social & Communications category. There are more than 100 alternatives to Slack for a variety of platforms, including the Web, Android, iPhone, Windows and Mac. The best alternative is Mattermost, which is both free and Open Source. Other great apps like Slack are Discord (Freemium), Element (Freemium, Open Source), Zulip (Free Personal, Open Source) and Rocket.Chat (Freemium, Open Source).

    The list of alternatives was last updated Feb 25, 2021

    • Mattermost is an open source, self-hosted Slack alternative.
      Almost everyone thinks this is a great alternative to Slack.
      • Freemium • Open Source
      • Mac
      • Windows
      • Linux
      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Self-Hosted
      • JavaScript
      • Go (Programming Language)
      • Cloudron
      shelehovchanin Same functionality. Same interface. At the same time, there are much fewer restrictions. IN my experience, the free version is great enough for a team of 100 people
      Positive comment almost 2 years ago 8 users agree and 2 don't

      Its the same but you keep your server where you want so no one is playing with your data, and you can have an unlimited history depending on what you need for free so really way better !
      Positive comment almost 4 years ago 5 users agree and 2 don't

      it is similar in features, and has some more, for example XMPP compatibility (-> many more client choice) and ability to self host it!
      Positive comment over 2 years ago 4 users agree and 1 doesn't

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      3 of 18
    • Discord is about giving people the power to create belonging in their lives. We want to make it easier for you to talk regularly with the people you care about.
      Most users think this is a great alternative to Slack.
      • Freemium
      • Mac
      • Windows
      • Linux
      • Online
      • Android
      • iPhone
      • Chrome OS
      • BSD
      • iPad
      • Electron / Atom Shell
      • FreeBSD
      TheBeast Good app for your personal use. Wouldn't recommend for an Enterprise setting which is what Slack is more geared towards.
      Positive comment about 4 years ago 21 users agree and 7 don't

      jbrown Very very similar in terms of use and features. Of course, discord is marketed as for gamers while slack is for teams but usage is almost identical.
      Positive comment about 1 year ago 12 users agree and 2 don't

      thompsonmj Slack is a project productivity and communication enhancement tool with integrating with other collaborative tools like GitHub, document editors, storage, etc. Discord is for recreational chatting.
      Negative comment over 2 years ago 28 users agree and 19 don't

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      3 of 12


    • A free instant messaging and collaboration software based on the Matrix protocol.
      Almost everyone thinks this is a great alternative to Slack.
      • Freemium • Open Source
      • Mac
      • Windows
      • Linux
      • Online
      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Self-Hosted
      • Matrix.org
      • Cloudron
      brinerustle because its open source, decentralised, and end-to-end secure. Plus the folks at matrix.org are working to get us out of our communication silos by creating standards for communication interoperability!
      Positive comment almost 3 years ago 6 users agree and 2 don't

      Federated, free standard and free software
      Positive comment about 3 years ago 5 users agree and 2 don't

      Federated, decentralized, encrypted, open-source.
      Positive comment over 1 year ago 5 users agree and 2 don't

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      3 of 7
    • Zulip is a group chat app in which messages are threaded by topic, helping you have long-running, organized conversations.
      Almost everyone thinks this is a great alternative to Slack.
      • Free Personal • Open Source
      • Mac
      • Windows
      • Linux
      • Online
      • Android
      • iPhone
      • Android Tablet
      • BSD
      • iPad
      • Self-Hosted
      abijith Three reasons: 1. Open source. 2. Stream 3. Topics
      Positive comment about 3 years ago 8 users agree and 2 don't

      Zulip is open source and the methods of communications used is vastly different. It is specially useful in professional environments where different teams might want to participate in different conversations at the same time. Zulip solves this problem by including topics, where in each channel/stream, multiple topics can exist at once, at the same time.
      Positive comment almost 2 years ago 6 users agree and 3 don't

      paulocoghi More than feature parity with Slack, it's better because of Streams and Topics. It offer the same free tier with 10.000 max messages and better paid plans to the hosted version, and also provide the open source self-hosted option to install it on your own server and also remove the max messages limits. 5 stars
      Positive comment about 1 year ago 3 users agree and 1 doesn't

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      3 of 16
    • Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
      Almost everyone thinks this is a great alternative to Slack.
      • Freemium • Open Source
      • Mac
      • Windows
      • Linux
      • Self-Hosted
      • Cloudron
      JohnFastman Does everything Slack does AND it's open source. However, it's also self-hosted. This means you have to put in the effort to set it up, but you control your own data, which is a huge advantage to your privacy - your chats and files don't sit on someone else's servers, ready for them or hackers to look at.
      Positive comment about 4 years ago 10 users agree and 2 don't

      Rocket.Chat comes very close to slack regarding it's core features and handling.
      Positive comment over 2 years ago 5 users agree and 1 doesn't

      open source, locally hosted so you own your data.
      Positive comment about 2 years ago 3 users agree and 3 don't

    • Matrix defines a set of open APIs for decentralised communication, suitable for securely publishing, persisting and subscribing to data over a global open federation of servers...
      Most users think this is a great alternative to Slack.
      No screenshots yet
      • Free • Open Source
      • Mac
      • Windows
      • Linux
      • Online
      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Self-Hosted
      • WebRTC
      • Python
      • JavaScript
      • Go (Programming Language)
      • Cloudron
      • Java
      • Perl
      somegirlfromit Matrix is a protocol, not a client.
      Negative comment over 1 year ago 16 users agree

      It can be easily bridged to many other chat systems, including Slack, which makes transitioning *much* easier. It's also open source and decentralized (self-hostable + communication with other servers).
      Positive comment over 3 years ago

      Respects your Freedom. Increasingly popular
      Positive comment over 3 years ago 1 users agree and 1 doesn't

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      3 of 6
    • Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live, Yahoo!
      Some users think this is a great alternative to Slack, some don't.
      • Free • Open Source
      • Mac
      • Windows
      • Linux
      • Online
      • Android
      • iPhone
      • Android Tablet
      • BSD
      • iPad
      Jitsi is for video chat, slack is a team collaboration platform. In Slack, text messages are common, in Jitsi video chat is the main focus.
      Negative comment 9 months ago 4 users agree

    • Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure...
      Most users think this is a great alternative to Slack.
      • Free Personal • Open Source
      • Mac
      • Windows
      • Linux
      • Online
      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Self-Hosted
      • Software as a Service (SaaS)
    • AirSend is a simple collaboration space for professionals and small teams that brings all your conversations, files, notes, and to-do lists into one place so that you can get work done faster and easier.
      Almost everyone thinks this is a great alternative to Slack.
      • Freemium
      • Mac
      • Windows
      • Linux
      • Online
      • Android
      • iPhone
      • Software as a Service (SaaS)
      nejinv19 I have used Slack extensively, one thing I like very much about Airsend is the ability to manage files along with messaging.
      Positive comment 12 months ago 2 users agree

      olgafedorova Free. Has all the messaging features. One on one messaging is a bit convoluted but overall it's great
      Positive comment 11 months ago 1 users agree

      khart We are this app to collaborate with our remote marketing team. The best part of this app is it brings chat, files, tasks and notes in one space. We don't need to switch between multiple apps to complete the work.
      Positive comment 11 months ago 1 users agree

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      3 of 17
    • Hangouts is a messaging app that lets you send and receive messages, photos and more, and even start free video and voice calls – one to one or with a group!
      This alternative is disputed. It's still a legitimate alternative, but it might have issues that some users think are important.
      • Free
      • Windows
      • Online
      • Android
      • iPhone
      • Chrome OS
      • Android Tablet
      • iPad
      • Google Chrome
      • Android Wear
      Hangouts is more peer-to-peer communication and it's an instant messenger. Slack is a team based and collaboration oriented platform with different features. Hangouts is not something like Slack.
      Negative comment about 2 years ago 13 users agree and 1 doesn't

      Hangouts doesn't support file uploads other than images
      Negative comment over 2 years ago 5 users agree and 3 don't

      Vijayprakash Google Hangout is the best communication tool because of its quality
      Positive comment over 2 years ago 0 users agree and 15 don't