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.

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

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.

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

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

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

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.

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.

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.

Beeper is a cross-platform messaging app that combines all your chat networks into one unified inbox, letting you manage services like WhatsApp, iMessage, Telegram, Signal, Slack, and Discord in one place.

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

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

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

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

qTox Portable provides a user-friendly program designed for secure communication, enabling you to connect with friends and family seamlessly. Using the Tox network ensures your conversations remain private and free from third-party eavesdropping.

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.

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

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

GoofCord is a free, open-source, privacy-focused alternative Discord client that strips out tracking, adds strong customization options, and gives you a more responsive chat experience without relying on the official Discord app.

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

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.

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.

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

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