Open Source Viber Alternatives

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

Viber alternatives are mainly Group Chat Apps but may also be Instant Messengers or Video Calling Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Viber.

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Viber

329

Freemium • Proprietary
Group Chat App

Mac
Windows
Linux
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
Apple Watch

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Signal
Do you think this is a good alternative?
Yes
No
Free • Open Source
Encrypted Chat App
Instant Messenger
Group Chat App
Mac
Windows
Linux
Android
iPhone
iPad
Flathub
Ubuntu
Debian
202 alternatives to Signal
Signal is a messaging app with an unexpected focus on privacy, combined with all the features expected from a modern IM app. Signal has received a lot of praise from all around the world for its security and privacy-respecting technologies.
Suggest and vote on features
Signal Features
1. End-to-End EncryptionSignal has E2E Encryption, for entire or parts of the app.
2. Privacy focusedSignal is considered a privacy friendly alternative.
3. Ad-freeSignal doesn't contain any form of external advertising.
4. Self Destructing MessagesSignal supports the use of private messages that will be auto deleted according to a specified time or action.
5. No TrackingSignal will not track you or use your personal data.
6. VoiP CallsSignal allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
7. Dark ModeSignal supports dark mode for comfortable usage in low light conditions.
8. LightweightSignal consumes less device resources compared to similar apps.
9. Works OfflineSignal can be used without the need to connect to the internet.
Security focused
GPLv3
Private messaging
Encrypted Connection
Stickers
Mobile friendly
Secure Chat
Desktop Application
Based on phone number
Protected by Password
Signal vs Viber opinions
Almost everyone thinks Signal is a great alternative to Viber.
Guest
Open source, meaning audit is possible, verifiably secure end-to-end encryption, multiplatform.
Positive comment•
5
Element
Do you think this is a good alternative?
Yes
No
Freemium • Open Source
Group Chat App
Instant Messenger
Encrypted Chat App
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Self-Hosted
Matrix.org
Cloudron
F-Droid
FLATHUB
266 alternatives to Element
Element is a secure collaboration and messaging app based on the Matrix protocol. It’s decentralised to deliver digital sovereignty, and based on an open standard for easy connections and interoperability. It is end-to-end encrypted by default.
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Element Features
1. DecentralizedElement is based on a decentralized infrastructure with no single entity controlling it.
2. End-to-End EncryptionElement has E2E Encryption, for entire or parts of the app.
3. Privacy focusedElement is considered a privacy friendly alternative.
4. VoiP CallsElement allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
5. No TrackingElement will not track you or use your personal data.
6. Real time collaborationMultiple users can work together in Element simultaneously.
7. Dark ModeElement supports dark mode for comfortable usage in low light conditions.
8. Ad-freeElement doesn't contain any form of external advertising.
9. File VersioningElement has a version system that lets you view and go back to older versions of the project/file/document.
Federated
Matrix Protocol
Voice Chat
Federation
Direct Messaging
Community-based
Per-room avatars
Multiple languages
Custom widgets
Message redaction
Tox
Do you think this is a good alternative?
Yes
No
Free • Open Source
Encrypted Chat App
Instant Messenger
Group Chat App
Mac
Windows
Linux
Android
Android Tablet
BSD
F-Droid
181 alternatives to Tox
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.
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Tox Features
1. DecentralizedTox is based on a decentralized infrastructure with no single entity controlling it.
2. Privacy focusedTox is considered a privacy friendly alternative.
3. End-to-End EncryptionTox has E2E Encryption, for entire or parts of the app.
4. No registration requiredYou can use most of the features in Tox without registration.
5. Screen SharingYou can use Tox to share your screen with your colleages or friends.
6. LightweightTox consumes less device resources compared to similar apps.
7. No TrackingTox will not track you or use your personal data.
8. Dark ModeTox supports dark mode for comfortable usage in low light conditions.
9. AES-256 EncryptionTox has AES-256 Encryption, i.e. very strong security.
Peer-To-Peer
Security focused
Multiplatform
P2P Network
Built-in player
GPLv3
White-labeled
Video Conferencing
Client side encryption
VoiP Calls
Tox vs Viber opinions
Most users think Tox is a great alternative to Viber.
Guest
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..
Positive comment•
0
Wire
Do you think this is a good alternative?
Yes
No
Free Personal • Open Source
Group Chat App
Video Calling App
Instant Messenger
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Self-Hosted
F-Droid
Software as a Service (SaaS)
257 alternatives to Wire
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.
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Wire Features
1. End-to-End EncryptionWire has E2E Encryption, for entire or parts of the app.
2. VoiP CallsWire allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
3. Screen SharingYou can use Wire to share your screen with your colleages or friends.
4. Privacy focusedWire is considered a privacy friendly alternative.
5. Multiple Account supportWire support multiple accounts without the need to logout and login
Security focused
Encrypted calls
Voice Chat
File Sending
Voice messages
WebRTC
Private Chat
Secure Chat
Integrated File Sharing
Secure File Sharing
Wire vs Viber opinions
Almost everyone thinks Wire is a great alternative to Viber.
Mattermost
Do you think this is a good alternative?
Yes
No
Freemium • Open Source
Group Chat App
Team Collaboration Tool
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Self-Hosted
JavaScript
Go (Programming Language)
Cloudron
115 alternatives to Mattermost
Mattermost is a secure, open source platform for communication, collaboration, and workflow orchestration across tools and teams.
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Mattermost Features
1. Extensible by Plugins/ExtensionsMattermost can be extended with add-ons, plugins and extensions.
2. Support for MarkDownMattermost supports MarkDown for document formatting.
Chat Bot
On-premises software
Multi Channel
Webhook support
Supports XMPP
Data API
Plugin API
File Sending
Integrated File Sharing
Slack integration
Zulip
Do you think this is a good alternative?
Yes
No
Free Personal • Open Source
Group Chat App
Instant Messenger
Encrypted Chat App
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
BSD
iPad
Self-Hosted
221 alternatives to Zulip
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.
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Zulip Features
1. Support for MarkDownZulip supports MarkDown for document formatting.
2. Syntax HighlightingZulip supports syntax highlighting for various programming and markup languages.
Threaded Conversations
Support for Hotkeys
Community-based
Integrated File Sharing
Chat Bot
Code Syntax Highlighting
GitHub integration
Secure Chat
Third party integrations
Chat organizer
Conversations
Do you think this is a good alternative?
Yes
No
Free • Open Source
Instant Messenger
Group Chat App
Encrypted Chat App
Android
Android Tablet
F-Droid
142 alternatives to Conversations
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].
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Conversations Features
1. DecentralizedConversations is based on a decentralized infrastructure with no single entity controlling it.
2. End-to-End EncryptionConversations has E2E Encryption, for entire or parts of the app.
3. OpenPGPConversations supports OpenPGP, a standard of PGP encryption that is open-source for public use.
4. GPG EncryptionConversations supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
5. LightweightConversations consumes less device resources compared to similar apps.
6. Dark ModeConversations supports dark mode for comfortable usage in low light conditions.
7. Ad-freeConversations doesn't contain any form of external advertising.
8. Self Destructing MessagesConversations supports the use of private messages that will be auto deleted according to a specified time or action.
9. Privacy focusedConversations is considered a privacy friendly alternative.
Image Sharing
Encrypted Connection
Supports XMPP
OMEMO
OTR
Federated
Chat Bot
Intuitive Interface
Xmpp
Secure Chat
Conversations vs Viber opinions
pros, cons and recent comments
Guest
Has End-to-End encryption by default. Is decentral/federated so not to block or shutdown.
Positive comment•
0
Nextcloud Talk
Do you think this is a good alternative?
Yes
No
Free Personal • Open Source
Group Chat App
Video Calling App
Instant Messenger
Online
Android
iPhone
iPad
Self-Hosted
Nextcloud
87 alternatives to Nextcloud Talk
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.
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Nextcloud Talk Features
1. Screen SharingYou can use Nextcloud Talk to share your screen with your colleages or friends.
2. End-to-End EncryptionNextcloud Talk has E2E Encryption, for entire or parts of the app.
3. Privacy focusedNextcloud Talk is considered a privacy friendly alternative.
4. Ad-freeNextcloud Talk doesn't contain any form of external advertising.
5. No TrackingNextcloud Talk will not track you or use your personal data.
6. Real time collaborationMultiple users can work together in Nextcloud Talk simultaneously.
7. No registration requiredYou can use most of the features in Nextcloud Talk without registration.
Briefing
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Yes
No
Free • Open Source
Video Calling App
Web Conferencing Tool
Online
Android
iPhone
Android Tablet
iPad
Self-Hosted
158 alternatives to Briefing
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...
Suggest and vote on features
Briefing Features
1. End-to-End EncryptionBriefing has E2E Encryption, for entire or parts of the app.
WebRTC
Web-Based
Peer-To-Peer
Video Conferencing
Audio Conferencing
Anonymous Chat
Telegram X
Do you think this is a good alternative?
Yes
No
Free • Open Source
Encrypted Chat App
Android
Android Tablet
Telegram
204 alternatives to Telegram X
An alternative Telegram client based on TDLib, with higher speed, slicker animations and experimental features.
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Telegram X Features
1. Ad-freeTelegram X doesn't contain any form of external advertising.
2. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
3. Support for ThemesYou can use themes and templates to change the look and feel of Telegram X.
4. VoiP CallsTelegram X allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
Integrated File Sharing
Cloud based
Stickers
Bots
Channels
Chat Bot