Instant Messengers Page 2 of 28

All apps in Instant Messengers category. Use the filters below to narrow down your search.

Fossify SMS Messenger
36 likes
Fossify Messenger is your trusted messaging companion, designed to enhance your messaging experience in various ways.
Instant Messenger
Free • Open Source
Android
F-Droid
Android Tablet
License model
Free • Open Source
Application type
Instant Messenger
Platforms
Android
F-Droid
Android Tablet
Properties
Lightweight
Privacy focused
Support for Themes
Features
SMS Messaging
No Tracking
No registration required
Ad-free
Text messaging
SMS/Text Message Backup
Dark Mode
Works Offline
Best alternatives are SignalandMolly34 alternatives
Revolt
85 likes
Revolt is a user-first, privacy focused chat platform.
Instant Messenger
Free • Open Source
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Rust
Flathub
F-Droid
GitHub
License model
Free • Open Source
Application types
Instant Messenger
Group Chat App
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Rust
Flathub
F-Droid
GitHub
+5
Properties
Privacy focused
Support for Themes
Lightweight
Features
Ad-free
Text chat
No Tracking
VoiP Calls
Bots
Multiple Servers
Cross-Platform
Dark Mode
Reactions
Custom roles
Two-factor Authentication
Cloud Sync
Best alternatives are TelegramandElement40 alternatives
Betterbird
48 likes
Open-source client enhancing Thunderbird with more features and bug fixes. Offers security patches and multi-row descriptions like Outlook.
Email Client
Free • Open Source
Mac
Windows
Linux
Flathub
Chocolatey
License model
Free • Open Source
Application types
Email Client
Calendar App
Platforms
Mac
Windows
Linux
Flathub
Chocolatey
+10
Properties
Privacy focused
Support for Themes
Lightweight
Features
Multiple Account support
Extensible by Plugins/Extensions
Works Offline
Unified inbox
Ad-free
Portable
SMTP Support
IMAP Support
POP3 Support
Add-ons
S/MIME Support
Built-in RSS reader
Best alternatives are ThunderbirdandK-9 Mail27 alternatives
Mattermost
248 likes
Mattermost is a secure, open source platform for communication, collaboration, and workflow orchestration across tools and teams.
Group Chat App
Freemium • Open Source
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Self-Hosted
JavaScript
Go (Programming Language)
Cloudron
License model
Freemium • Open Source
Application types
Group Chat App
Instant Messenger
Platforms
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Self-Hosted
JavaScript
Go (Programming Language)
Cloudron
+1
Properties
Lightweight
Features
Extensible by Plugins/Extensions
Chat Bot
On-premises software
Multi Channel
Full-Text Search
Built-in viewer
Dark Mode
Real time collaboration
Support for @mentions
Support for MarkDown
End-to-End Encryption
File Sending
Best alternatives are ElementandDiscord125 alternatives
Briar
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.
Instant Messenger
Free • Open Source
Mac
Windows
Linux
Android
Flathub
F-Droid
License model
Free • Open Source
Application types
Instant Messenger
Encrypted Chat App
Platforms
Mac
Windows
Linux
Android
Flathub
F-Droid
Properties
Lightweight
Privacy focused
Features
Decentralized
Works Offline
Bluetooth Support
End-to-End Encryption
Mesh network
Support for TOR
No registration required
Self Destructing Messages
Peer-To-Peer
LAN
Ad-free
Dark Mode
Best alternatives are SignalandTelegram75 alternatives
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Ferdium
55 likes
All your services in one place, built by the community.
Instant Messenger
Free • Open Source
Mac
Windows
Linux
PortableApps.com
Flathub
Snapcraft
License model
Free • Open Source
Application types
Instant Messenger
Web Browser
Platforms
Mac
Windows
Linux
PortableApps.com
Flathub
Snapcraft
Properties
Lightweight
Privacy focused
Support for Themes
Features
Unified messaging
Workspaces
Multiple languages
No registration required
No Tracking
Dark Mode
Unified communications
Cloud Sync
Ad-free
Best alternatives are BeeperandStation27 alternatives
Station
102 likes
Station is the first open-source smart browser for busy people. A single place for all of your web applications.
Application Launcher
Free • Open Source
Mac
Windows
Linux
Microsoft Edge
Google Chrome
Brave
License model
Free • Open Source
Application types
Application Launcher
Tab Manager
Platforms
Mac
Windows
Linux
Microsoft Edge
Google Chrome
Brave
+1
Station Features
App integration
Integrated Search
Slack client
Ad-free
Knowledge Management
Open API
Live Push Notifications
Team Messaging
Best alternatives are Zen BrowserandFerdium26 alternatives
Threema
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
Paid • Open Source
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
F-Droid
License model
Paid • Open Source
Application types
Instant Messenger
Video Calling App
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
F-Droid
Properties
Privacy focused
Features
End-to-End Encryption
Integrated File Sharing
Confirm messages
Ad-free
Image Sharing
Encrypted calls
Cloud Sync
No Tracking
Encrypted Backup
Dark Mode
Multiple Account support
Two-factor Authentication
Best alternatives are SignalandTelegram124 alternatives
HexChat
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
Free • Open Source
Windows
Linux
BSD
PortableApps.com
MacPorts
XQuartz
License model
Free • Open Source
Application types
IRC Client
Instant Messenger
Platforms
Windows
Linux
BSD
PortableApps.com
MacPorts
XQuartz
Discontinued
The version 2.16.2 is the final version of the software. The author announced that "The project has largely been unmaintained for years now and nobody else stepped up to do that work."
HexChat Features
IRC
Portable
Ad-free
Proxy support
Best alternatives are PidginandSeaMonkey67 alternatives
RetroShare
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 .
Video Calling App
Free • Open Source
Mac
Windows
Linux
Android
BSD
OpenSSL
OpenPGP
License model
Free • Open Source
Application types
Video Calling App
Instant Messenger
Platforms
Mac
Windows
Linux
Android
BSD
OpenSSL
OpenPGP
+2
Properties
Privacy focused
Features
Decentralized
Serverless
End-to-End Encryption
Peer-To-Peer
Anonymous Secure Filesharing
Secure File Sharing
Shared Folders
GPG Encryption
Secure Chat
Tor
i2P integration
Voice Chat
Best alternatives are SignalandLocalSend126 alternatives
Zulip
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 Personal • Open Source
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
BSD
iPad
Self-Hosted
License model
Free Personal • Open Source
Application types
Instant Messenger
Video Calling App
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
BSD
iPad
Self-Hosted
+4
Top Zulip Features
Threaded Conversations
Support for Hotkeys
Community-based
Support for MarkDown
Syntax Highlighting
Chat Bot
Secure Chat
Third party integrations
Integrated File Sharing
GitHub Integration
Integrated Search
Live topics
Best alternatives are SignalandTelegram230 alternatives
Element X
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.
Instant Messenger
Free • Open Source
Android
iPhone
Android Tablet
iPad
License model
Free • Open Source
Application types
Instant Messenger
Video Calling App
Platforms
Android
iPhone
Android Tablet
iPad
Properties
Lightweight
Privacy focused
Features
VoiP Calls
Ad-free
Matrix Protocol
Decentralized
End-to-End Encryption
No Tracking
Dark Mode
Voice Chat
Best alternatives are SignalandTelegram94 alternatives
Viber
335 likes
Free and secure calls and messages to anyone, anywhere.
Video Calling App
Freemium • Proprietary
Mac
Windows
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
Android Wear
Samsung Galaxy Store
License model
Freemium • Proprietary
Application types
Video Calling App
Instant Messenger
Platforms
Mac
Windows
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
Android Wear
Samsung Galaxy Store
Properties
Privacy focused
Features
Desktop Sharing
Phone calls
VoiP Calls
Animated stickers
End-to-End Encryption
Dark Mode
Support for @mentions
Cloud Sync
Voice Chat
Call Transfer
Secret chats
Hidden chat
Best alternatives are SignalandTelegram168 alternatives
Zoom
154 likes
Offers high-quality video conferencing and screen sharing, supporting up to 100 interactive participants with features like whiteboard collaboration.
Video Calling App
Freemium • Proprietary
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Apple Watch
Apple Car Play
Android Auto
Apple TV
Android TV
License model
Freemium • Proprietary
Application types
Video Calling App
Web Conferencing Tool
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Apple Watch
Apple Car Play
Android Auto
Apple TV
Android TV
+8
Top Zoom Features
Video Conferencing
Screen Sharing
No registration required
Email invitations
Ad-free
Picture in Picture
Two-factor Authentication
Voice Chat
Remote Work
Shared whiteboard
Breakout rooms
Automatic Transcript
Best alternatives are Jitsi MeetandJitsi Desktop232 alternatives
Delta Chat
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
Free • Open Source
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Snapcraft
Flathub
F-Droid
License model
Free • Open Source
Application types
Instant Messenger
Video Calling App
Platforms
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Snapcraft
Flathub
F-Droid
+1
Properties
Privacy focused
Features
Decentralized
Encrypted Email
IMAP Support
Multiple languages
Dark Mode
End-to-End Encryption
Ad-free
Unified inbox
Self Destructing Messages
Multiple Account support
Electron based
Best alternatives are SignalandTelegram79 alternatives

Fossify SMS Messenger

License model

Application type

Platforms

Properties

Features

Revolt

License model

Application types

Platforms

Properties

Features

Betterbird

License model

Application types

Platforms

Properties

Features

Mattermost

License model

Application types

Platforms

Properties

Features

Briar

License model

Application types

Platforms

Properties

Features

Ferdium

License model

Application types

Platforms

Properties

Features

Station

License model

Application types

Platforms

Station Features

Threema

License model

Application types

Platforms

Properties

Features

HexChat

License model

Application types

Platforms

HexChat Features

RetroShare

License model

Application types

Platforms

Properties

Features

Zulip

License model

Application types

Platforms

Top Zulip Features

Element X

License model

Application types

Platforms

Properties

Features

Viber

License model

Application types

Platforms

Properties

Features

Zoom

License model

Application types

Platforms

Top Zoom Features