Mumble was the first VoIP application to establish true low latency voice communication over a decade ago. But low latency and gaming are not the only use cases it shines in.

We heard from users who record podcasts with our multi-channel audio recorder, players seeking realism with our positional audio in games, Eve Online players with huge communities of over 100 simultaneous voice participants (I bet they make good use of our extensive permission system 😄), the competitive Team Fortress 2 community making us their required voice communication platform, hobby radio transmission users, and a variety of workplaces adapting Mumble to fit their needs - be it on-head mobile devices or communicating across countries or into airplanes.

Administrators appreciate Mumble for being able to self host and have control over data security and privacy. Some make use of the extensive permission system for complex scenarios (for example separating two groups but leaders being able to talk to both). Some love to provide their users with additional functionality with scripts making use of server APIs, or host music bots and the like that connect to the server. Those that have an existing user database often make use of authenticators to allow authenticating with existing account login data.


Different user groups are interested in different capabilities and so we describe some of the features specific to each kind of user.

For End-Users

  • Mumble Client
  • Connected to a Server
  • Public Server List
  • Low-latency - great for talking and gaming
  • Stay private and secure
  • always encrypted communication
  • Public/private-key authentication by default
  • Recognize friends across servers

For gamers:

  • In-game Overlay - see who is talking, FPS and the current time
  • Positional audio - hear the players from where they are located in-game
  • Wizards to guide you through setup, like configuring your microphone

To get started simply download, install and start Mumble and connect to a public server, or a specific one you know of.

For Administrators

  • Libre software - no licensing hassle, caveats and limitations
  • Open Source - open in security and technology, and open to extendibility
  • Extensive user permission system (ACL)
  • Extendible through Ice protocols
  • Web interfaces - free choice of several community free software projects
  • Channel viewers - even without direct Ice access, if the hoster provides the CVP, easily set up your channel viewer of choice
  • Authenticators - to allow users to authenticate against an existing user database
  • Custom chat commands and context (right click) menu entries

To get started you can check out our Server guide.

For configuration options see Murmur.ini and our documentation on third party administration software, scripts, and bots.

For Hosters

  • Free software - no licensing hassle or cost
  • Automatable administration through Ice middleware
  • Low resource cost for hosting
  • Very stable server software
  • Free choice between official and third party server software
  • Custom web-interfaces for users through Ice
  • Or host one of the available free software web interfaces
  • Provide users with channel viewer data (CVP) without giving control away
  • Or empower the users by providing the Ice interface

To get started you can check out our Server guide.

What's New

  • Since the latest 1.4.274 release contained a couple of regressions, we now provide you with a fixed-up version 1.4.287.

This is the full changelog for this release (changes relative to the Mumble 1.4.274 release).


  • Fixed: Broken link targets with percent signs (#5865)
  • Fixed: Don't allow manual toggling of minimal view note (#5861)
  • Fixed: Fallback path for themes (#5863)
  • Fixed: Fix versions being transmitted incorrectly (with patch numbers > 255) (#5868)
  • Fixed: Icon scale being way too small (#5864)
  • Fixed: Make hiding UI elements (in custom layout) persistent again (#5862)
  • Fixed: Resolve log text scaling issues (#5866)


  • Fixed: Fix versions being transmitted incorrectly (with patch numbers > 255) (#5868)

Known issues

  • Overlay blocked by BattleEye. A request to whitelist it has been made.
  • Overlay blocked by CS:GO Trusted Mode
  • Autoscroll of chat window not working properly on Linux (#4638, #2504)
  • Certain special characters are not rendered on Windows (#4939)
  • macOS binaries not being signed/notarized