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

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.

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

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

Pidgin Portable is a multifunctional chat application that allows users to connect to multiple chat networks simultaneously. This capability facilitates efficient communication across various platforms, all within a single, user-friendly interface. Installer, Linux, and Mac versions are also available.

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.

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

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.

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.

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.

MyChat is a secure messaging and collaboration platform built for internal business networks.

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 Portable is an Open Source communication application designed for gamers that offers low latency and ensures that all communications are encrypted. Installer, Linux, and Mac versions are also available.

Franz allows you to group all of your messaging and chat services within one easy-to-configure application.

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.

sPortable allows you to take Skype with you wherever you may roam. Skype desktop, Android, and Mac are also available.

Skype is one of the longest-running, well-known video chat clients. Also available as a portable app.

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

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

Privacy Extension For WhatsApp Web for Chrome and Firefox adds a layer of privacy by hiding messages from nosey bystanders until you hover over them.

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

Netchat allows you to chat with other users in the same subnet easily.

LocalSend lets you share files and messages with nearby devices on your local network without requiring an internet connection.

Camfrog Video Chat is a multi-video chat program for switching between different video chat usernames without having multiple platforms open.

ManyCam is a free live studio & webcam effects software. You can use your webcam with multiple chat applications, add webcam effects, use live audio and voice changer, draw over your video window, and more.