Slack Alternatives

Slack is described as 'Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms' and is a leading Group Chat app in the social & communications category. There are more than 100 alternatives to Slack for a variety of platforms, including Android, iPhone, Web-based, Mac and Windows apps. The best Slack alternative is Element, which is both free and Open Source. Other great apps like Slack are Zulip, Mattermost, Discord and Rocket.Chat.

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Slack alternatives are mainly Group Chat Apps but may also be Instant Messengers or Team Collaboration Tools. Other popular filters include Self-Hosted + Open Source. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Slack.
Slack iconSlack
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Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms.

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Slack alternatives page was last updated Feb 6, 2025
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Alternatives
  1. Revolt icon

    Revolt

     85 likes
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    Revolt is a user-first, privacy focused chat platform.

    40 Revolt alternatives

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Rust
    • Flathub
    • F-Droid
    • GitHub
    Revolt screenshot 1

    Properties

    1.  Privacy focused
    2.  Support for Themes
    3.  Lightweight

    Features

    1.  Ad-free
    2.  Text chat
    3.  No Tracking
    4.  VoiP Calls
    5.  Bots
    6.  Multiple Servers
    7.  Cross-Platform
    8.  Dark Mode
    9.  Reactions
    10.  Custom roles
    11.  Two-factor Authentication
    12.  Cloud Sync

    Revolt VS Slack

     
  2. Element X icon

    Element X

     25 likes
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    It is the brand new, and fastest ever, Matrix client. It is for personal and community use, and will support enterprise functionality later this year.

    94 Element X alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • GB flagUnited Kingdom

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    Element X screenshot 1
    Element X screenshot 2
    Element X screenshot 3

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  VoiP Calls
    2.  Ad-free
    3.  Matrix Protocol
    4.  Decentralized
    5.  End-to-End Encryption
    6.  No Tracking
    7.  Dark Mode
    8.  Voice Chat

    Element X VS Slack

     
  4. Threema icon

    Threema

     118 likes
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    Threema is a new mobile messaging app that puts security first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages.

    124 Threema alternatives

    License model

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad
    • F-Droid
    Threema screenshot 1
    Threema screenshot 2
    Threema screenshot 3

    Properties

    1.  Privacy focused
    2.  Security-focused

    Features

    1.  End-to-End Encryption
    2.  Encrypted Chat
    3.  Integrated File Sharing
    4.  Confirm messages
    5.  Ad-free
    6.  Image Sharing
    7.  Cloud Sync
    8.  No Tracking
    9.  Encrypted Backup
    10.  Dark Mode
    11.  Multiple Account support
    12.  Two-factor Authentication

    Threema VS Slack

     

    • Threema is the most popular commercial alternative to Slack.

    • Threema is Paid and Open SourceSlack is Freemium and Proprietary
    • Threema is Privacy focusedSlack is not according to our users
  5. Ad
    Screenshot
    Infomaniak kChat icon
    Infomaniak kChat

    kChat is a secure instant messaging for businesses, which makes it possible to discuss matters live and organise projects.

    https://www.infomaniak.com
    Learn More
  6. Microsoft Teams icon

    Microsoft Teams

     55 likes
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    A comprehensive collaboration platform within Office 365, providing centralized chat, file sharing, and HD video meetings. Accessible on multiple platforms, it offers enterprise-grade security and compliance, customizable notifications, and private to group chat sessions.

    244 Microsoft Teams alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Microsoft 365
    • Android Auto
    • Apple Car Play
    Microsoft Teams screenshot 1

    Top Microsoft Teams Features

    Features

    1.  Team Collaboration
    2. Microsoft 365 Copilot icon  Microsoft Office integration
    3. Microsoft SharePoint icon  Sharepoint integration
    4.  Planner
    5.  Real time collaboration
    6.  Calendar View
    7.  Reminders
    8.  Dark Mode
    9.  Live Captions Translation
    10.  VoiP Calls
    11. Azure DevOps icon  Azure DevOps integration
    12. Trello icon  Trello integration

    Microsoft Teams VS Slack

     
    Comments about Microsoft Teams as an Alternative to Slack
    C F
    Positive •Oct 2, 2019
    2

    Same as Slack plus a lot more features

    s b
    Positive •Jul 24, 2018
    0

    Integration with MS Office, and most importantly - MS Teams are FREE!

    Slack Icon
    Microsoft Teams icon

    • Most users think Microsoft Teams is a great Slack alternative.

    • Microsoft Teams is Freemium and ProprietarySlack is also Freemium and Proprietary
  7. AirSend icon

    AirSend

     53 likes
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    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.

    33 AirSend alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Software as a Service (SaaS)
    AirSend screenshot 1
    AirSend screenshot 2
    AirSend screenshot 3

    Top AirSend Features

    1.  Team Collaboration
    2.  Integrated File Sharing
    3.  File Organizer
    4.  Included wiki
    5. Microsoft 365 Copilot icon  Microsoft Office integration
    6.  Multiple channels
    7.  VoiP Calls
    8.  Ad-free
    9.  Support for @mentions
    10.  Email integration
    11.  Smart attachments

    AirSend VS Slack

     
    Comments about AirSend as an Alternative to Slack
    Comment summary: AirSend is praised as a more versatile and affordable option compared to Slack, frequently highlighted for its cost-free nature. Users appreciate its integrated task and file management capabilities, ease of use, and ability to facilitate communication between organizations without complicated setups. While Slack can be limited to specific workspaces, AirSend offers a streamlined interface and additional features like wiki and built-in project management, making it an appealing choice for users with various needs.
    Top Positive Comment
    mio
    Mar 17, 2020
    2

    Slack limits itself to specific workspaces of teams. If you want to communicate between organizations or teams, shared channels are hard to setup and manage. AirSend doesn't have those issues.

    Most Recent Comment
    Thiago Oliveira
    Positive •Jul 16, 2020
    0

    I think the combination of communication and task/file management makes Airsend an excellent tool. They are always including new features. Best of all it is Free.

    hazzelle721
    Positive •Apr 28, 2020
    0

    Collaboration is made easy

    Show more comments
    3 of 18 comments
    Slack Icon
    AirSend icon

    • Almost everyone thinks AirSend is a great Slack alternative.

    • AirSend is Freemium and ProprietarySlack is also Freemium and Proprietary
  8. Basecamp icon

    Basecamp

     239 likes
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    Basecamp is a web-based project collaboration tool that allows groups of people to share files, meet deadlines, assign tasks, and centralize feedback.

    73 Basecamp alternatives

    License model

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
    Basecamp home screen

    Top Basecamp Features

    1.  Support for @mentions
    2.  Real time collaboration
    3. Google Calendar icon  Sync with Google Calendar
    4.  Task Time Tracking
    5.  Gantt-charts
    6.  Visual Organization
    7.  Social feed
    8. Apple Calendar icon  iCal integration
    9.  Content Templates
    10.  White-labeled
    11.  Unlimited users
    12.  Message board

    Basecamp VS Slack

     
    Comments about Basecamp as an Alternative to Slack
    Guest
    Negative •Aug 31, 2017
    8

    Slack is a communication/chat tool. Basecamp is project management.

    Zeklandia
    Positive •Apr 24, 2018
    -1

    It is completely free for education users, and allows deeper integration with files and documents, allowing chat to be just that: chat. It also allows for several levels of organization and just about everything is customizable.

    Slack Icon
    Basecamp icon

    • Some users think Basecamp is a great Slack alternative, some don't.

    • Basecamp is Paid and ProprietarySlack is Freemium and Proprietary
  10. Conversations icon

    Conversations

     99 likes
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    Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved easy encryption [OTR, OMEMO, or GPG].

    160 Conversations alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Conversations screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Intuitive Interface

    Features

    1.  Decentralized
    2.  End-to-End Encryption
    3.  Encrypted Chat
    4.  Image Sharing
    5.  Supports XMPP
    6.  OMEMO
    7.  OpenPGP
    8.  Encrypted Connection
    9.  GPG Encryption
    10.  Ad-free
    11.  Self Destructing Messages
    12.  Dark Mode

    Conversations VS Slack

     
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