Open Source Rakuten Viber AlternativesTop Instant Messengers & Video Calling Apps like Rakuten Viber

The best open source alternative to Rakuten Viber is Signal. If that doesn't suit you, our users have ranked more than 100 alternatives to Rakuten Viber and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Rakuten Viber are Element, Tox, Wire and Zulip.

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Alternatives list

  1. Signal icon

    Signal

     1369 likes

    An open-source messaging app emphasizing privacy with encrypted communication. Share texts, calls, photos, and videos without ads or trackers, available across major platforms. Developed by Signal Technology Foundation and praised globally for security measures.

    216 Signal alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • iPad
    • Flathub
    • Ubuntu
    • Debian
    • Snapcraft
    Signal screenshot 1
     
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    2
    Comments about Signal as an Alternative to Rakuten Viber
    Guest
    Positive
    5

    Open source, meaning audit is possible, verifiably secure end-to-end encryption, multiplatform.

    Review by a new / low-activity user.
    Guest
    Negative
    0

    Signal has no IP telephony ability

    Review by a new / low-activity user.
    Signal icon
    Signal icon
    • Signal is Free and Open SourceRakuten Viber is Freemium and Proprietary
    • Signal is Security-focused and LightweightRakuten Viber is not according to our users
  2. Element icon

    Element

     779 likes

    Provides secure collaboration with end-to-end encryption, supporting chat, voice, and video calls. Available on all major platforms, it enables digital sovereignty with a decentralized design and interoperability through bridges to systems like Slack and Teams. Includes enterprise-grade SaaS.

    302 Element alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Matrix.org
    • Flathub
    • F-Droid
    • Cloudron
    • Snapcraft
    Video calls for desktop and mobile
     
  4. Tox icon

    Tox

     558 likes

    With the rise of widespread government monitoring programs, Tox is an easy to use application that allows you to connect with friends and loved ones without anyone else listening in.

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • Android Tablet
    • BSD
    • F-Droid
    The Universal Tox Client. A Tox client that runs on Android, iOS, Windows, Mac OSX, Linux, FreeBSD & the web. Written in JS using React & React Native / electron.
     
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    1
    Comments about Tox as an Alternative to Rakuten Viber
    Guest
    Positive
    0

    Tox is free and far more secure than viber whats app skype zoom facebook messenger and a lot of the other liberty takers for a start... signal along with Tox is also a very good alternative..

    Review by a new / low-activity user.
    Tox icon
    Tox icon
    • Tox is Free and Open SourceRakuten Viber is Freemium and Proprietary
    • Tox is Security-focused and LightweightRakuten Viber is not according to our users
  5. Wire icon

    Wire

     315 likes

    Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption.

    282 Wire alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • F-Droid
    • Software as a Service (SaaS)
    • Flathub
    • Snapcraft
    Wire screenshot 1
     
  6. Zulip icon

    Zulip

     267 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.

    221 Zulip alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • BSD
    • iPad
    • Self-Hosted
    • F-Droid
    Zulip screenshot 1
     
  9. Conversations icon

    Conversations

     103 likes

    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].

    154 Conversations alternatives

    Cost / License

    Application types

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Conversations screenshot 1
     
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    1
    Comments about Conversations as an Alternative to Rakuten Viber
    Guest
    Positive
    0

    Has End-to-End encryption by default. Is decentral/federated so not to block or shutdown.

    Review by a new / low-activity user.
    Conversations icon
    Conversations icon
    • Conversations is Free and Open SourceRakuten Viber is Freemium and Proprietary
    • Conversations is LightweightRakuten Viber is not according to our users
  10. Nextcloud Talk icon

    Nextcloud Talk

     33 likes

    Self-hosted communication platform with secure audio, video, chat, web conferencing, screensharing, advanced encryption, and metadata privacy, running on user-controlled servers, supporting web and mobile apps, and eliminating third-party data exposure.

    109 Nextcloud Talk alternatives

    Cost / License

    Application types

    Platforms

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

    Briefing

     29 likes

    The preservation of privacy is the main driver for this project. Secure technologies, such as WebRTC, are used to establish a direct connection between the participants. The website that provides the web application and mediates the communication stores as little data as...

    Cost / License

    Application types

    Platforms

    • Online
    • Self-Hosted
    • npm
    Briefing screenshot 1
     
  14. Speek! icon

    Speek!

     12 likes

    Speek! is the first messenger that is anonymous and censorship-resistant by design. Speek! messenger encrypts all messages and is secure, private and decentralized.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    Speek! screenshot 1
     
12 of 38 Rakuten Viber alternatives