Ventrilo Alternatives for Mac OS X

Mumble is a free and open-source voice communication application designed with low latency and high audio quality in mind, primarily for gamers. It offers features like positional audio, an in-game overlay, and strong privacy through encryption.

Discord is a versatile free communication platform designed initially for gamers but now widely used for communities of all types. It offers voice and text chat, video calls, and robust server customization for groups of any size, providing a centralized hub for real-time interaction and community building.

TeamSpeak is a leading voice communication software designed for crystal-clear audio, minimal latency, and high security. Perfect for online gaming, team collaboration, and large community interactions, it offers unparalleled control over your communication server and prioritizes user privacy.

Wire is a secure, cross-platform messaging and collaboration client offering end-to-end encryption by default for all communication types including messaging, voice and video calls, and file sharing across desktop and mobile devices.

C3 is a free voice and text chat application designed for gamers, offering a lightweight and secure platform with features like in-game overlay, group chat, and HD voice calls to enhance communication during gaming sessions.

Curse is a comprehensive online platform designed for the gaming community, integrating robust chat, voice communication, and game management tools.