Slack AlternativesOnly apps categorised as Instant Messengers - Page 2

The best Instant Messenger alternative to Slack is Element, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Slack and loads of them are Instant Messengers so hopefully you can find a suitable replacement. Other interesting Instant Messenger alternatives to Slack are Zulip, Mattermost, Discord and Rocket.Chat.

filter to find the best alternatives

Slack alternatives are mainly Instant Messengers, but if you're looking for Group Chat Apps or Team Collaboration Tools you can filter on that. Other popular filters include Self-Hosted + Open Source. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Slack.
Slack iconSlack
  853
  • ...

Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms.

More about Slack
More about Slack
Slack alternatives page was last updated Apr 21, 2025
Copy a direct link to this comment to your clipboard
  1. Revolt icon

    Revolt

     89 likes
    Copy a direct link to this comment to your clipboard

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

    42 Revolt alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • GB flagUnited Kingdom

    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

    Features

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

    Revolt VS Slack

     
  2. Threema icon

    Threema

     121 likes
    Copy a direct link to this comment to your clipboard

    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.

    123 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.  Ad-free
    5.  Confirm messages
    6.  Image Sharing
    7.  Dark Mode
    8.  No Tracking
    9.  Cloud Sync
    10.  Multiple Account support
    11.  Two-factor Authentication
    12.  Encrypted Backup

    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
  4. Element X icon

    Element X

     27 likes
    Copy a direct link to this comment to your clipboard

    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.

    95 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.  Dark Mode
    5.  Decentralized
    6.  End-to-End Encryption
    7.  No Tracking
    8.  Real time collaboration
    9.  Support for MarkDown
    10.  Support for @mentions
    11.  Cloud Sync
    12.  Voice Chat

    Element X VS Slack

     
  5. Ad
    Screenshot
    Zoho Cliq icon
    Zoho Cliq

    Zoho Cliq simplifies your team communication with organized conversations, information that's easy to find and by connecting to the tools you love. Transform ideas into reality with your team. With channels, your team communi...

    https://www.zoho.com
    Learn More
  6. Zorium icon

    Zorium

     14 likes
    Copy a direct link to this comment to your clipboard

    The next generation communication platform designed for gamers and academics alike. Experience seamless collaboration like never before.

    54 Zorium alternatives

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Zorium screenshot 1

    Top Zorium Features

    1.  Ad-free
    2.  Screen Sharing
    3.  Recurring Tasks
    4.  Dark Mode
    5.  Voice Chat
    6.  Low Latency
    7.  Media sharing
    8.  Emoji reactions
    9.  Task assignments
    10.  Threaded Conversations
    11.  Direct Messaging

    Zorium VS Slack

     
  7. Conversations icon

    Conversations

     99 likes
    Copy a direct link to this comment to your clipboard

    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].

    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

     
  8. Guilded icon

    Guilded

     74 likes
    Copy a direct link to this comment to your clipboard

    An advanced gaming chat platform competitor to Discord with features like calendars, advanced voice chat, and forums to better manage and grow your gaming communities.

    119 Guilded alternatives

    License model

    • Free • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    Chat for gaming communities
    with power user features
    Bring conversations to life with threads

    Properties

    1.  Gaming-focused
    2.  Customizable

    Features

    1.  Voice Chat
    2.  Text chat
    3.  Tournament Management
    4.  Calendar Integration
    5.  Private Chat
    6.  Scheduling
    7.  VoiP Calls
    8.  Integrated Chat
    9.  Gamification
    10.  Reminders
    11.  Dark Mode
    12.  Support for @mentions

    Guilded VS Slack

     
  10. Nextcloud Talk icon

    Nextcloud Talk

     33 likes
    Copy a direct link to this comment to your clipboard

    Nextcloud Talk is a fully self-hosted audio/video and chat communication service. It features web and mobile apps and is designed to offer the highest degree of security while being easy to use.

    101 Nextcloud Talk alternatives

    License model

    • Free Personal • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • Nextcloud
    • F-Droid
    • Chocolatey
    • Flatpak
    Nextcloud Talk screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Screen Sharing
    2.  End-to-End Encryption
    3.  Ad-free
    4.  Real time collaboration
    5.  No registration required
    6.  No Tracking
    7.  Dark Mode
    8. Nextcloud icon  Nextcloud integration

    Nextcloud Talk VS Slack

     
    Comments about Nextcloud Talk as an Alternative to Slack
    Guest
    Negative •Mar 1, 2025
    0

    Nextcloud Talk, like most of Nextcloud, is very heavyweight. So if you don't have a very good server, it's going to be very slow (for me it was around 10 seconds to send a single message)

    Slack Icon
    Nextcloud Talk icon
    • Nextcloud Talk is Free Personal and Open SourceSlack is Freemium and Proprietary
    • Nextcloud Talk is Privacy focusedSlack is not according to our users
You are at page 2 of Slack alternatives