Instant Messengers

Y99
Free • Proprietary
Video Calling App
Instant Messenger
Online
Android
17 alternatives to Y99
Chat room directory filled with staff and user created chat rooms, designed to create the 1990s era when people actually spoke to strangers in chat rooms before social networks got invented.
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Y99 Features
1. Watch Videos TogetherWatch video streams in sync together with your friends with Y99.
Top 3 alternatives
LAN Messenger
Free • Open Source
Instant Messenger
Mac
Windows
Linux
PortableApps.com
23 alternatives to LAN Messenger
LAN Messenger is a p2p chat application for intranet communication and does not require a server. A variety of handy features are supported including notifications, personal and group messaging with encryption, file transfer and message logging.
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LAN Messenger Features
1. PortableLAN Messenger can be used from a USB stick or similar with no prior installation.
License plate detection
Integrated File Sharing
Team Messaging
Discontinued
Sadly, no more releases since Dec. 2018
Top 3 alternatives
Cyanide
Free • Open Source
Instant Messenger
Self-Hosted
Sailfish OS
73 alternatives to Cyanide
Cyanide is Tox client for Sailfish OS .
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Cyanide Features
1. Multiple Account supportCyanide support multiple accounts without the need to logout and login
Integrated File Sharing
Discontinued
The project seems no longer developed. Last version, released in January 2017, can be still downloaded from GitHub
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Top 3 alternatives
Adamant Messenger
Free • Open Source
Encrypted Chat App
Instant Messenger
Online
Android
iPhone
Android Tablet
iPad
Windows
Mac
Linux
141 alternatives to Adamant Messenger
The most secure and anonymous messenger, encrypted with Blockchain.
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Adamant Messenger Features
1. End-to-End EncryptionAdamant Messenger has E2E Encryption, for entire or parts of the app.
2. DecentralizedAdamant Messenger is based on a decentralized infrastructure with no single entity controlling it.
3. No registration requiredYou can use most of the features in Adamant Messenger without registration.
Support for TOR
Blockchain
Anonymous Chat
Based on Blockchain
Top 3 alternatives
FortKnoxster
Free • Proprietary
Video Calling App
Instant Messenger
Group Chat App
Online
Android
iPhone
Android Tablet
iPad
Microsoft Edge
Google Chrome
Software as a Service (SaaS)
Opera
Brave
Chromium
Firefox
46 alternatives to FortKnoxster
FortKnoxster is a multidevice easy-to-use private and secure messaging, calling, crypto wallet and cloud storage, using advanced end-to-end encryption and leveraging on blockchain technology.
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FortKnoxster Features
1. End-to-End EncryptionFortKnoxster has E2E Encryption, for entire or parts of the app.
2. VoiP CallsFortKnoxster allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
3. Privacy focusedFortKnoxster is considered a privacy friendly alternative.
Encrypted calls
Private messaging
Inbox messaging
Secure File Sharing
Password encryption
Top 3 alternatives
KakaoTalk
Freemium • Proprietary
Instant Messenger
Group Chat App
Mac
Windows
Android
iPhone
Android Wear
93 alternatives to KakaoTalk
KakaoTalk is a phone number based messenger service that allows users anywhere in the world to chat one-to-one or in a group for free. (no SMS service)
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KakaoTalk Features
1. VoiP CallsKakaoTalk allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
Push Notifications
Voice Chat
Based on phone number
Stickers
Secret chats
Top 3 alternatives
Tkabber
Free • Open Source
Instant Messenger
Mac
Windows
Linux
BSD
48 alternatives to Tkabber
Tkabber is a Free and Open Source client for the Jabber instant messaging system. Its writen in Tcl/Tk, and works on many platforms (tested on Linux, FreeBSD, NetBSD, Solaris, MacOS X and Windows 98/2000/XP).

Top 3 alternatives
Zello Walkie Talkie
Free Personal • Proprietary
Instant Messenger
Windows
Android
iPhone
Android Tablet
iPad
29 alternatives to Zello Walkie Talkie
The application is a push-to-talk (PTT) walkie-talkie for consumers and business and available for Android, iOS, Blackberry, Windows Phone, Windows PC, rugged mobile devices and two-way radios.
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Zello Walkie Talkie Features
1. LightweightZello Walkie Talkie consumes less device resources compared to similar apps.
2. Ad-freeZello Walkie Talkie doesn't contain any form of external advertising.
3. Dark ModeZello Walkie Talkie supports dark mode for comfortable usage in low light conditions.
Radio Gateway
Push to talk
Voice Chat
Multiple languages
Unlimited Channel Size
Message Replay
Trending Channels
Top 3 alternatives
Otr.to
Free • Open Source
Encrypted Chat App
Instant Messenger
Online
14 alternatives to Otr.to
Open source anonymous, registration free P2P chat. You communicate directly and no logs are saved on the server. Otr.to is browser based, which means that you don't need to install or ask somebody to install software.
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Otr.to Features
Anonymous Chat
Peer-To-Peer
Secure Chat
Browser-based
Top 3 alternatives
Paltalk
Freemium • Proprietary
Video Calling App
Instant Messenger
Mac
Windows
Online
Android
iPhone
Kindle Fire
63 alternatives to Paltalk
Paltalk is an instant messaging service that enables users to communicate via internet chat, voice and video chat. It offers chat rooms and the ability for users to create their own public virtual chat room.
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Paltalk Features
Voice Chat
Top 3 alternatives
Kaidan
Free • Open Source
Instant Messenger
Linux
Android
Ubuntu Touch
Plasma Mobile
82 alternatives to Kaidan
Kaidan is a simple, user-friendly Jabber/XMPP client providing a modern user interface using Kirigami and QtQuick. The back-end of Kaidan is written in C++ using the QXmpp XMPP client library and Qt 5.
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Kaidan Features
Xmpp
Integrated File Sharing
Voice messages
Top 3 alternatives
Coccinella
Free • Open Source
Instant Messenger
Mac
Windows
Linux
BSD
72 alternatives to Coccinella
Coccinella is a free and open-source cross-platform instant messaging client with a built-in whiteboard for improved collaboration with other people.
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Coccinella Features
Voice Chat
Xmpp
Interactive Whiteboard
Discontinued
The last version 0.96.20 is from late 2010, but the software can still be downloaded from their website.
Top 3 alternatives
Torchat
Free • Open Source
Instant Messenger
Windows
Linux
34 alternatives to Torchat
TorChat is a peer to peer instant messenger with a completely decentralized design, built on top of Tor's location hidden services, giving you extremely strong anonymity while being very easy to use without the need to install or configure anything.
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Torchat Features
1. DecentralizedTorchat is based on a decentralized infrastructure with no single entity controlling it.
2. PortableTorchat can be used from a USB stick or similar with no prior installation.
Tor
Security focused
Secure Chat
Peer-To-Peer
Discontinued
The project is no longer developed since 2014. Last version, 0.9.9.553, released in September 2012, can be still downloaded from GitHub.
Top 3 alternatives
Peach
Free • Proprietary
Instant Messenger
Social Network
iPhone
19 alternatives to Peach
Peach lets you share what you feel, think, see, hear, and do—vividly. Peach connects you with friends and gives you freedom, so you can keep up with each other in a real and personal way.

Top 3 alternatives
Yap Chat
Free • Proprietary
Instant Messenger
Online
11 alternatives to Yap Chat
Yap is an ephemeral, real-time chat room with up to six participants. Your messages appear and disappear as quickly as you type them, which means unless you pay attention to what everyone says (for once), you’ll miss it.
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Yap Chat Features
1. Watch Videos TogetherWatch video streams in sync together with your friends with Yap Chat.
2. Self Destructing MessagesYap Chat supports the use of private messages that will be auto deleted according to a specified time or action.
Top 3 alternatives

Y99 Features

Top 3 alternatives

LAN Messenger Features

Top 3 alternatives

Cyanide Features

Top 3 alternatives

Adamant Messenger Features

Top 3 alternatives

FortKnoxster Features

Top 3 alternatives

KakaoTalk Features

Top 3 alternatives

Top 3 alternatives

Zello Walkie Talkie Features

Top 3 alternatives

Otr.to Features

Top 3 alternatives

Paltalk Features

Top 3 alternatives

Kaidan Features

Top 3 alternatives

Coccinella Features

Top 3 alternatives

Torchat Features

Top 3 alternatives

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Yap Chat Features

Top 3 alternatives