Loading Multi-Track Mixer...
About Multi-Track Mixer
The Multi-Track Mixer combines several audio files into one balanced stereo or mono mix. Podcasters, musicians, and video producers use it to layer voiceover over music, blend separately recorded stems, or assemble a rough mix without installing a full DAW. Each uploaded file becomes a track with its own volume slider, pan control, mute and solo buttons, and start time offset, while level meters warn you when the output is clipping. When the balance sounds right, you render a single MP3 or WAV file. All mixing happens locally in your browser through the Web Audio API, so none of your tracks are uploaded and client material and demos remain private.
Key Features
- ✓Mix multiple audio tracks into one file
- ✓Per-track volume sliders with level meters
- ✓Stereo panning, mute, and solo controls
- ✓Start time offsets align tracks precisely
- ✓Export mixes as MP3 or WAV
- ✓Fade in/out effects for smooth transitions
How to Use Multi-Track Mixer
- 1
Upload Your Audio Tracks
Add each audio file you want to combine. Every file loads as a separate track in the mixer.
- 2
Balance Track Levels
Use the volume sliders to set each track's level and watch the level meters to keep the overall mix below 0dB and avoid clipping.
- 3
Pan and Arrange Tracks
Use the pan controls for stereo placement and the start time controls to line tracks up. Mute or solo tracks to check individual parts.
- 4
Configure the Output
Choose MP3 or WAV output, set the quality, and decide whether the final mix should be stereo or mono.
- 5
Mix and Download
Click Mix to MP3 or Mix to WAV to render the combined track and download it to your device.
Read the complete step-by-step guide with screenshots and pro tips
Common Use Cases
- •A podcaster blends an intro music bed under their spoken voiceover for a finished-sounding episode.
- •A musician layers a guitar part, bass line, and drum track recorded separately into one demo.
- •A video editor prepares a mixed audio bed of sound effects and music before importing it into an edit.
- •A language teacher combines dialogue tracks and a music cue for a classroom listening exercise.
- •A choir director merges individual section recordings into a single reference mix.
Frequently Asked Questions
Are my tracks uploaded anywhere during mixing?
No. Mixing runs entirely in your browser with the Web Audio API, and your audio files never leave your device. The rendered mix downloads straight to your computer.
What formats can I mix and export?
You can load standard browser-supported audio such as MP3, WAV, and M4A. The finished mix can be exported as MP3 for smaller files or WAV for maximum quality.
Do I need an account or subscription to mix tracks?
No. The mixer is completely free with no signup and no watermarks, and you can mix as many sessions as you like.