Audio Mixer
Audio ProductionLayer multiple audio tracks together into a single mix.
What is Audio Mixer?
Audio Mixer layers several audio files into one track, right in your browser. Add as many clips as you like, then set each track's volume, nudge its start offset, or mute it while you dial in the balance — the tool plays them together and renders a single WAV. Because it uses the Web Audio API locally, your files are mixed on your own device and never uploaded.
How to use Audio Mixer
3 simple steps to complete your task directly in your browser:
Add your tracks
Drop two or more audio files onto the dropzone. Each is decoded in the browser and added as its own track with independent controls. MP3, WAV, M4A, OGG, and FLAC all work.
Balance the volumes
Use each track's Volume slider (0–150%) to blend them. Turn a backing track down and a vocal up until the mix sounds right.
Line up the timing
Set a Start offset in seconds to delay a track so it comes in later — handy for layering a sound effect, a second verse, or a drop over a bed.
Common uses
- Lay a voiceover over a background music bed
- Layer a beat, bassline, and melody into one loop
- Add sound effects on top of a narration at set moments
- Blend two versions of a take to taste
- Combine ambience with a spoken track for a podcast intro
- Build a simple multitrack mixdown without installing software
Why choose VersaTools
100% private
Your files are processed inside your browser and are never uploaded to a server.
Free, no account
No sign-up, no watermark, no paywalled “premium” tier. Just open a tool and use it.
Instant
No upload, no queue, no server round-trip — work starts the moment you drop a file.
Runs in your browser
Built on open web standards. Works on any modern desktop browser, nothing to install.
No upload size caps
Nothing leaves your device, so there’s no server file-size limit — only your machine’s memory.
Yours to keep
Results download straight to your device in clean, standard file formats.