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 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.

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

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

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

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

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

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.

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.

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

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

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

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

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.

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

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.

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.

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

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

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.

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

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.

ICQ Reborn revitalizes the beloved instant messenger that many of us fondly remember from the early 2000s. It's the platform that kept us up chatting late into the night, echoing with the familiar "uh oh" sound that still resonates in our memories.

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.

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.