Mumcord
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Alpha · Open source · MIT

Your Mumble server. Finally cosy.

Mumcord is a Discord-style desktop client that speaks the Mumble protocol. Server bar, channels, chat and member list — on any standard Mumble server. Nothing changes on the server.

Download Source on GitHub Linux · Windows · macOS
Mumcord main window: server bar, channel tree, chat and member list (dark theme, demo data)

01 — Push-to-talk

Hold the key. Start talking.

Keys and mouse buttons, even while a game has focus. On Wayland through the global-shortcuts portal — or in compatibility mode, like TeamSpeak.

Just an animation. This page never touches your microphone.

Muted

Hold space or press the key

02 — What Mumcord does today

Everything an evening session needs.

As of Epic 1, stage 1a — the everyday client. What's missing is listed honestly in the roadmap.

Follow channels

Click the star and you read along in a channel without joining it — or follow all of them from the server menu. Unread messages show up as a badge.

Clear sound out of the box

AI noise suppression, echo cancellation and automatic gain are on. The bitrate follows your network: down when packets get lost, back up when it recovers.

Certificates, made readable

On first connect you see the server's fingerprint and decide. If it changes later, Mumcord stops with a clear warning.

  1. 04

    Discord-style chat

    Avatars, grouped messages and Markdown, with a compact layout for busy channels. The channel description and welcome message are pinned on top; images are scaled to the server's limit.

  2. 05

    Notifications, your way

    New messages as a small in-app pop-up, a system notification, both or off. Plus short, quiet sounds per event — including when you join and hang up.

  3. 06

    Big servers stay tidy

    From six people on, avatars stack up under the channel name. Hover for a profile preview, and drag the channel and member lists to the width you like.

  4. 07

    Volume per person

    0 to 200 %, local mute. Remembered by the person's certificate — even after they rename.

  5. 08

    Back where you were

    After a dropout Mumcord restores your channel, mute/deafen state and followed channels. After a restart it offers to rejoin your last voice channel.

  6. 09

    Your identity stays yours

    The client certificate lives in your system's secure storage. Import from the official Mumble client via PKCS#12, export any time.

  7. 10

    Ready in a minute

    The setup wizard only asks for identity, microphone and talk mode. If you like, Mumcord opens mumble:// links and starts when you log in.

  8. 11

    Built for everyone

    Keyboard operation, screen-reader labels, light and dark themes, system scaling. English, German and Spanish — switch without a restart.

03 — Just a client

Nothing to install on the server. Ever.

Mumcord speaks the standard Mumble protocol. Your server stays as it is; friends on the official Mumble client sit in the same channel as you.

You, on Mumcord Rust · Tauri · React Mumble server murmur / mumble-serverunmodified Friends, on Mumble Mumble 1.4+ You, on Mumcord Rust · Tauri · React Mumble server murmur / mumble-serverunmodified Friends, on Mumble Mumble 1.4+
  • TLS · control & chat
  • OCB2-AES · voice over UDP, TCP fallback

mumble:// links open directly

Click in the browser, Mumcord starts, offers to save the server and jumps into the channel.

64738
default port, nothing else
1.4+
full features, older servers best effort
0
lines of server code

04 — Take a tour

05 — Where it's going

Honestly: this is an alpha.

The roadmap is a proposal and may change. Mobile apps and a web version are not planned. Nothing server-side will ever be required.

  1. Epic 1 · 1a now

    Everyday client

    Everything on this page. Unsigned builds for Linux, Windows and macOS.

  2. Epic 1 · 1b

    Positional audio & overlay

    Mumble Link with the official game plugins, floating overlay.

  3. Epic 2

    Several servers at once

    Read along on all of them, talk on one.

  4. Epic 3

    Comfort

    Global hotkeys, full tray menu, import from the official client, whisper, server browser.

  5. Epic 4

    Admin

    ACLs, bans, channel management.

  6. Epic 5

    Distribution

    Signed installers, auto-update, opt-in crash reports.

06 — Get it

Download Mumcord

The first release isn't published yet. Releases are built from version tags, tested on fresh machines and then appear on GitHub — this page picks them up automatically.

Releases on GitHub →

Builds are unsigned for now. Signed installers arrive with Epic 5.

Installation guide · Rather build it yourself? Rust, Node 24, one command. Build guide in the wiki