dungeonmixer.io

A basic 6-track mixer desk in your browser.

Overview

Nothing fancy, just a basic 6-track mixer desk in your browser which lets you load your own local audio files into multiple channel strips to layer ambient soundscapes. The app is 100% Offline & Local Storage: Everything lives directly in your browser's IndexedDB. You can load your audio pack and run sessions entirely in airplane mode! You can even export the entire sound library, saved scenes, and stinger setups into a single .dungeon bundle file to take between devices. It's something I built for my own table which I wanted to share with the community. Enjoy!

Key features

6-Channel Mixing Desk

Load your own local audio files into multiple channel strips to layer ambient soundscapes (e.g., tavern chatter + rain on the roof + fireplace crackle)

Procedural Ambient Dice

Set channels to roll periodic dice checks behind the scenes to trigger spot effects randomly (e.g., rolling every 10s to organically trigger a thunder strike, monster roar, or creaking floorboard)

Soundboard Stingers

Top-row pads with instant hotkey triggers (1–6) for immediate sound effects (spells, critical hits, door slams).

Smooth Scene Crossfades

Save scene presets and crossfade between locations smoothly with custom fade timers instead of jarring audio cuts.

Tactile In-Person Hotkeys

Keep it running on your laptop/tablet and hit 1–6 for stingers, Space to mute the master channel, Shift+1..6 for channel mutes, or Esc to fade the entire desk.

100% Offline & Local Storage

Everything lives directly in your browser's IndexedDB. There are no logins, no cloud tracking, and no streaming lag. You can load your audio pack and run sessions entirely in airplane mode.

Portable Campaign Bundles

Export your entire sound library, scenes, and stinger setups into a single .dungeon bundle file to take between devices.

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