Instant Messengers Page 2 of 28

All apps in Instant Messengers category. Use the filters below to narrow down your search. 
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  1. Fossify Messenger is your trusted messaging companion, designed to enhance your messaging experience in various ways.

    Fossify SMS Messenger screenshot 1
    Fossify SMS Messenger screenshot 2
    Fossify SMS Messenger screenshot 3
    Best alternatives are Signal iconSignalandMolly iconMolly34 alternatives
  2. Revolt  icon
     85 likes

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

    • Instant Messenger
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Rust
    • Flathub
    • F-Droid
    • GitHub
    Revolt  screenshot 1
    Best alternatives are Telegram iconTelegramandElement iconElement40 alternatives
  3. Betterbird icon
     48 likes

    Open-source client enhancing Thunderbird with more features and bug fixes. Offers security patches and multi-row descriptions like Outlook.

    • Email Client
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Flathub
    • Chocolatey
    Betterbird screenshot 1
    Best alternatives are Thunderbird iconThunderbirdandK-9 Mail iconK-9 Mail27 alternatives
  4. Mattermost icon
     248 likes

    Mattermost is a secure, open source platform for communication, collaboration, and workflow orchestration across tools and teams.

    • Group Chat App
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • JavaScript
    • Go (Programming Language)
    • Cloudron
    Mattermost screenshot 1
    Best alternatives are Element iconElementandDiscord iconDiscord125 alternatives
  5. Briar icon
     91 likes

    An open-source decentralized and encrypted messaging app even without internet connection via Wi-Fi and Bluetooth. Messages are stored securely on your device, not in the cloud. Connect directly with nearby contacts - no Internet access is required.

    Briar screenshot 1
    Briar screenshot 2
    Briar screenshot 3
    Best alternatives are Signal iconSignalandTelegram iconTelegram75 alternatives
  6. Ferdium icon
     55 likes

    All your services in one place, built by the community.

    Best alternatives are Beeper iconBeeperandStation iconStation27 alternatives
  7. Station icon
     102 likes

    Station is the first open-source smart browser for busy people. A single place for all of your web applications.

    Station screenshot 1
    Best alternatives are Zen Browser iconZen BrowserandFerdium iconFerdium26 alternatives
  8. Threema icon
     118 likes

    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.

    • Instant Messenger
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad
    • F-Droid
    Threema screenshot 1
    Threema screenshot 2
    Threema screenshot 3
    Best alternatives are Signal iconSignalandTelegram iconTelegram124 alternatives
  9. HexChat icon
     217 likes

    HexChat is an IRC client based on XChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.

    • IRC Client
    • FreeOpen Source
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    • MacPorts
    • XQuartz
    Best alternatives are Pidgin iconPidginandSeaMonkey iconSeaMonkey67 alternatives
  10. RetroShare icon
     158 likes

    RetroShare is a open source cross-platform, private and secure decentralized communication system. It lets you to securely chat, share photos, videos, and more, using OpenPGP to authenticate peers and .

    Network tab with contact list and broadcast subtab open. The subtab shows text and image sent by one contact to all connected contacts.
    Best alternatives are Signal iconSignalandLocalSend iconLocalSend126 alternatives
  11. Zulip icon
     204 likes

    Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.

    • Instant Messenger
    • Free PersonalOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • BSD
    • iPad
    • Self-Hosted
    Zulip screenshot 1
    Best alternatives are Signal iconSignalandTelegram iconTelegram230 alternatives
  12. Element X icon
     25 likes

    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.

    Element X screenshot 1
    Element X screenshot 2
    Element X screenshot 3
    Best alternatives are Signal iconSignalandTelegram iconTelegram94 alternatives
  13. Viber icon
     335 likes

    Free and secure calls and messages to anyone, anywhere.

    • Video Calling App
    • FreemiumProprietary
    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad
    • Android Wear
    • Samsung Galaxy Store
    Viber screenshot 1
    Viber screenshot 2
    Viber screenshot 3
    Best alternatives are Signal iconSignalandTelegram iconTelegram168 alternatives
  14. Zoom icon
     154 likes

    Offers high-quality video conferencing and screen sharing, supporting up to 100 interactive participants with features like whiteboard collaboration.

    • Video Calling App
    • FreemiumProprietary
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Apple Car Play
    • Android Auto
    • Apple TV
    • Android TV
    Zoom screenshot 1
    Best alternatives are Jitsi Meet iconJitsi MeetandJitsi Desktop iconJitsi Desktop232 alternatives
  15. Delta Chat icon
     51 likes

    Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.

    • Instant Messenger
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Snapcraft
    • Flathub
    • F-Droid
    Delta Chat screenshot 1
    Best alternatives are Signal iconSignalandTelegram iconTelegram79 alternatives