• Telegram icon

    Telegram

    Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free. It is like SMS, but more powerful. .

    Free Mac Windows Linux Web / Cloud Android iPhone Android Tablet BSD Windows Phone iPad Apple Watch Android Wear PortableApps.com FreeBSD

  • WhatsApp Messenger icon

    WhatsApp Messenger

    WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. WhatsApp Messenger is available for iPhone, BlackBerry, Android, Windows Phone and Nokia and yes, those...

    Free Mac Windows Web / Cloud Android iPhone S60 Blackberry Android Tablet Windows Phone Blackberry 10 Android Wear Kindle Fire

  • Signal icon

    Signal

    TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or...

    Open Source Mac Windows Linux Android iPhone Chrome

  • Viber icon

    Viber

    Viber is a mobile application that lets you make free phone calls and send text messages to anyone who also has the application installed. .

    Freemium Mac Windows Linux Android iPhone Windows RT Android Tablet Windows Phone iPad Blackberry 10 Apple Watch

  • Jitsi icon

    Jitsi

    Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live, Yahoo!, GTalk/Hangouts extensions, as well as OTR...

    Open Source Mac Windows Linux Web / Cloud Android BSD

  • Trillian icon

    Trillian

    Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation should be easily shared between all of your devices, not trapped...

    Freemium Mac Windows Linux Web / Cloud Android iPhone Blackberry iPad

  • Linphone icon

    Linphone

    Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone makes use of the SIP protocol, an open...

    Open Source Mac Windows Linux Web / Cloud Windows Mobile Android iPhone Android Tablet Windows Phone iPad Xfce

  • Wire icon

    Wire

    Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages - everything is end-to-end encrypted. Wire works on Android, iOS...

    Free Mac Windows Linux Web / Cloud Android iPhone Chrome OS Android Tablet iPad Microsoft Edge Chrome Opera Firefox

  • LINE icon

    LINE

    LINE is a Japanese proprietary application for instant messaging on smartphones and PCs. Line users exchange text messages, graphics, video and audio media, make free VoIP calls, and hold free audio or video conferences.

    Freemium Mac Windows Web / Cloud Android iPhone Blackberry Android Tablet Windows Phone iPad Apple Watch

  • ICQ icon

    ICQ

    ICQ is one of the oldest instant messengers. First developed by the Israeli company Mirabilis, sold to AOL, sold again and currenly owned by the Russian "mail.ru" group (known for one of the largest social networks). ICQ has...

    Free Mac Windows Linux Web / Cloud Windows Mobile Android iPhone Java Mobile S60 Blackberry Android Tablet Windows Phone iPad Kindle Fire

  • WeChat icon

    WeChat

    WeChat is a complete mobile communication and private social networking app. Free, cross-platform, and full-featured, WeChat is the best way to keep in touch with everyone you care about. Features WECHAT OUT CALLS: Make calls to...

    Freemium Mac Windows Android iPhone S60 Blackberry Android Tablet Windows Phone iPad Apple Watch

  • Psi icon

    Psi

    Psi is an instant messaging application for Windows, Linux, and Mac OS X that connects to the free, open Jabber IM network (also known as XMPP). Localized versions of Psi are available in almost twenty different languages. Built-in...

    Open Source Mac Windows Linux BSD

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  • iMessage icon

    iMessage

    Love iMessage on your iPhone? You'll love it on your Mac, too. Messages lets you send unlimited messages to anyone on a Mac, iOS device, or Apple Watch. Your messages can include photos, videos, documents, audio, and contacts, and...

    Free Mac iPhone iPad Apple Watch

  • Zulip icon

    Zulip

    Powerful open source group chat. Features: Threaded group conversations Talk about multiple topics at once without getting lost or overwhelmed. One-on-one and group private conversations Have private conversations with one...

    Open Source Mac Windows Linux Web / Cloud Android iPhone BSD Self-Hosted

  • YakYak icon

    YakYak

    What does it do: * Send/receive chat messages * Create/change conversations (rename, add people) * Leave/delete conversation * Notifications * Toggle notifications on/off * Drag-drop, copy-paste or...

    Open Source Mac Windows Linux

  • KakaoTalk icon

    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) Message arrivals are instantly notified with Push Alert and you can send...

    Freemium Mac Windows Android iPhone Blackberry Windows Phone Android Wear Kindle Fire

  • Zoiper icon

    Zoiper

    Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications systems and infrastructure. Zoiper Classic BIZ provides secure...

    Freemium Mac Windows Linux Web / Cloud Android iPhone Windows Phone

  • Telephone icon

    Telephone

    Telephone is a VoIP program which allows you to make phone calls over the internet. It can be used to call regular phones via any appropriate SIP provider, including Google Voice via Gizmo5. If your office or home phone works via SIP...

    Open Source Mac

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  • Tkabber icon

    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).

    Open Source Mac Windows Linux BSD

  • AIM icon

    AIM

    AOL Instant Messenger is an instant messaging and presence computer program which uses the proprietary OSCAR instant messaging protocol and the TOC protocol to allow registered users to communicate in real time.HistoryAOL Instant...

    Freemium Mac Windows Web / Cloud Windows Mobile Android iPhone Blackberry Windows RT iPad

  • Actor Messenger icon

    Actor Messenger

    Modile-first open source self-hosted messaging platform that allows to easily create your own messaging app.

    Open Source Mac Windows Linux Web / Cloud Android iPhone Android Tablet iPad Self-Hosted

  • Pinger icon

    Pinger

    Pinger lets you text and talk free with the people you care about most, anywhere on the planet. Tap a picture and you'll see all of your communications—texts, pics, calls, voicemails—all in one place. Together with millions of...

    Free Personal Mac Windows Web / Cloud Android iPhone

  • QuteCom icon

    QuteCom

    QuteCom is a community of enthusiasts and developers, creating free software products related to communication over IP. The flagship product of the QuteCom project is a softphone which allows you to make free PC to PC video and voice...

    Open Source Mac Windows Linux PortableApps.com

    • Discontinued The official website is no longer available. Last version, 2.2.1, released in May 2011, can be still downloaded from Wayback Machine.
  • Camfrog icon

    Camfrog

    Free live webcam video chat room software for multiple desktop platforms including mobile platforms like iOS and Android. Make free live audio & video calls world-wide or Join live webcam chat rooms or host your own for free...

    Freemium Mac Windows Linux Android iPhone Android Tablet iPad Kindle Fire

  • MXit icon

    MXit

    Mxit is a South African created mobile social network. It works on over 10000 different handsets and mobile devices, including tablets.

    Free Mac Windows Linux Windows Mobile Android iPhone Java Mobile S60 Blackberry Android Tablet Windows Phone iPad Adium Pidgin

  • Paltalk icon

    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. Free live video chat...

    Freemium Mac Windows Web / Cloud Android iPhone Kindle Fire

  • Messenger for Desktop icon

    Messenger for Desktop

    A simple & beautiful app for Facebook Messenger. Chat without distractions on any Operating System.

    Open Source Mac Windows Linux

    • Bundleware Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
  • Toky icon

    Toky

    Toky is an easy to setup phone support system for entrepreneurs and small business.

    Freemium Mac Linux Web / Cloud Android Android Tablet Chrome

  • Palringo icon

    Palringo

    Palringo is the lightweight Instant Messaging client for desktop computers. Express yourself in chat with emoticons and smileys to show your friends how you’re feeling. Send voice messages at the click of a button so your friends can...

    Free Personal Mac Windows Windows Mobile Android iPhone Java Mobile S60 Blackberry

  • YateClient icon

    YateClient

    YateClient is an Instant Messenger and a SoftPhone.

    Free Mac Windows Linux

  • 4talk Messenger icon

    4talk Messenger

    4talk IM service is a complete IM service for communicating with your phone contacts using your PC in the office or at home. You can transfer files and messages and access your correspondence from your mobile devices.

    Freemium Mac Windows Web / Cloud Android iPhone

  • Spreed icon

    Spreed

    Spreed is the worldwide unified web conferencing service offering integrated web and telephone conferencing. It is based on Flash Player. Free service includes 3 attendees and max 1.5h meetings. Single events or monthly service can be...

    Commercial Mac Windows Linux Web / Cloud

  • Line2 icon

    Line2

    Line2 is a VoIP phone service that lets you call & text from a separate phone number via WiFi or 3G/4G/LTE. At a small premium, Text & call ANYONE in the US/Canada, forwarding & more. Pick any phone number. Line2 gives...

    Commercial Mac Windows Android iPhone Android Tablet iPad Apple Watch Kindle Fire

  • WowApp icon

    WowApp

    WowApp helps you do good through the Power of Sharing. We share all revenues with you. WowApp Messenger is free and you can receive earnings without ever spending money. Next, the choice is yours. You can choose to do good for...

    Freemium Mac Windows Android iPhone Android Tablet iPad

  • hike messenger icon

    hike messenger

    Used for chatting, updating status, photos, sharing media like WhatsApp, WeChat, LINE etc.

    Free Mac Windows Windows Mobile Android iPhone Android Tablet Windows Phone