Mumble provides free open source, low-latency voice communication for online groups and gaming sessions.
Mumble
Mumble provides open-source software for real-time voice chat with low latency.

About Mumble
Mumble is open-source voice-chat software with two modules: the client (mumble) and the server (mumble-server, formerly murmur). It is written on top of Qt and Opus for low-latency communication.
The client works on Windows, Linux, FreeBSD, OpenBSD, and macOS, while the server works where Qt can be installed. It supports general-purpose plugins and various languages.
Key features
- Separate client and server modules for voice chat
- Low-latency voice communication built on Qt and Opus
- Client support for Windows, Linux, FreeBSD, OpenBSD, macOS
- Server operation on systems where Qt can be installed
- General-purpose plugins for added functionality
- Interface available in various languages
- Open-source codebase for client and server
- Low-latency design using Qt and Opus
- Client available across Windows, macOS, Linux and BSD variants
- Master branch contains unstable code, requiring branch selection for stable builds
Mumble at a glance
- Category
- Social & Communities › Messaging Apps
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Mumble alternatives
Tools and sites you could use instead, ranked by how closely they match.
Guildbit hosts Mumble voice chat servers, letting users deploy a server and review upgrade or donation options.
Mattermost provides self-hosted collaboration with chat, workflow automation, voice calls, screen sharing, and AI integration.
Matterbridge connects chat platforms including IRC, Slack, Discord, Telegram, Matrix, and Mattermost through message bridges.
TeamSpeak provides voice communication across platforms, supporting online group conversations.
Zulip provides an open-source team chat server and web application for team collaboration and focused discussions.
Popular in Messaging Apps
Well-known listings from the same topic.
Mumble FAQ
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