Viber is a cross-platform VoIP (voice over IP) application that will let you send free messages and make free calls to other Viber users on any device, network, or in any country in which you happen to be.

Session is a secure messenger that provides complete end-to-end encryption to ensure privacy and removes sensitive metadata.

Telegram is a free mobile/desktop messaging app with a focus on speed and security.

RetroMessenger is an innovative messaging application inspired by the iconic interfaces from Sci-Fi films that offers you secure, encrypted peer-to-peer connections, ensuring that conversations remain private and protected.

Discord is a popular instant messaging and VoIP app offering data and traffic protection for desktop computers and smartphones. There is an Open Source portable version available.

Camfrog Video Chat is a free cross-platform app that lets you instantly jump into live video‑chat rooms or start private video calls.

If you're looking for a portable way to access Zoom for virtual meetings and collaboration, look no further than zmPortable. Installer is also available.

Signal Private Messenger allows you to communicate in real-time and share media or attachments with complete privacy.

WhatsApp for Desktop provides you with nearly all the same free functionality of the Android version directly on your PC.

EaseUS ChatTrans aims to simplify the process of offering a straightforward solution for transferring chats, media, and more from WhatsApp.

Zoom Workplace can help you connect with friends and coworkers, featuring chat, meetings, video webinars, conference rooms, and more. A portable version is also available.

Jami is a viable alternative to Zoom that is designed with the freedom and privacy of users in mind.

Rambox is an Open Source messaging and emailing app that combines the most common web applications into one.

Logi Tune provides you with a way to optimize your webcam and Logi Dock for video meetings.

Trillian is a multi-network chat client that supports Google, AIM, ICQ, Twitter, and more.

Ferdium Portable provides an innovative online platform that functions as a service consolidator. It allows you to access a wide range of communication services in one place. It is also available as an installer and for Linux and Mac.

Mumble is a low-latency, always encrypted Open Source communication application perfect for gamers with an in-game overlay as well as positional audio so you can hear where other players are located. A portable version is also available.

Microsoft Teams allows you to invite anyone you work with to chat, meet, call, and collaborate all in one place, no matter where you are.

Ferdium offers an innovative online platform that serves as a one-stop shop for a wide range of communication services. A Portable version via PortableApps is also available.

TeamTalk allows you to chat with your friends or colleagues using the internet or a local area network.

Chatterino is a specialized chat client for Twitch that offers a more advanced and user-friendly experience than the standard Twitch web chat.

Monochrome is an IRC client intended for long-time IRC users with the goal of security, reliability, and stability despite IRC network failures or connectivity problems.

MicroSIP is a free, Open-Source app that allows you to easily make high-quality VoIP calls (person-to-person or on regular telephones) via the open SIP protocol.

Discord Portable lets you take the popular Discord instant messaging and VoIP app with you.

SplitCam offers cool webcam effects for having more positive emotions during video calls with your friends.